./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/java_Nested.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/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_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/java_Nested.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/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_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/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 6f3c7109e3632c85dc9002b2a2bde96ba9bdc501efcd49505c298845bf1ea677 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:53:58,601 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:53:58,716 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-12 00:53:58,721 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:53:58,721 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:53:58,744 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:53:58,745 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:53:58,745 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:53:58,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:53:58,747 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:53:58,748 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:53:58,748 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:53:58,749 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:53:58,750 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:53:58,750 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:53:58,751 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:53:58,752 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:53:58,752 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:53:58,753 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:53:58,753 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:53:58,754 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:53:58,755 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:53:58,755 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:53:58,756 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:53:58,757 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:53:58,757 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:53:58,758 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:53:58,758 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:53:58,759 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:53:58,759 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:53:58,760 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:53:58,760 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:53:58,761 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:53:58,761 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:53:58,762 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:53:58,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:53:58,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:53:58,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:53:58,764 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:53:58,764 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:53:58,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:53:58,765 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:53:58,765 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:53:58,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:53:58,766 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_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f3c7109e3632c85dc9002b2a2bde96ba9bdc501efcd49505c298845bf1ea677 [2023-11-12 00:53:59,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:53:59,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:53:59,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:53:59,098 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:53:59,098 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:53:59,099 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/termination-restricted-15/java_Nested.c [2023-11-12 00:54:02,193 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:54:02,390 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:54:02,390 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/sv-benchmarks/c/termination-restricted-15/java_Nested.c [2023-11-12 00:54:02,396 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/data/fd5298335/aed0ef966489419eb2224580100d180e/FLAG772ade7ad [2023-11-12 00:54:02,411 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/data/fd5298335/aed0ef966489419eb2224580100d180e [2023-11-12 00:54:02,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:54:02,415 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:54:02,416 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:54:02,416 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:54:02,425 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:54:02,426 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:54:02" (1/1) ... [2023-11-12 00:54:02,427 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7de8cc23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:02, skipping insertion in model container [2023-11-12 00:54:02,428 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:54:02" (1/1) ... [2023-11-12 00:54:02,444 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:54:02,579 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:54:02,585 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:54:02,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:54:02,610 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:54:02,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:02 WrapperNode [2023-11-12 00:54:02,611 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:54:02,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:54:02,612 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:54:02,613 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:54:02,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:02" (1/1) ... [2023-11-12 00:54:02,627 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:02" (1/1) ... [2023-11-12 00:54:02,644 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2023-11-12 00:54:02,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:54:02,646 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:54:02,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:54:02,646 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:54:02,653 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:02" (1/1) ... [2023-11-12 00:54:02,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:02" (1/1) ... [2023-11-12 00:54:02,654 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:02" (1/1) ... [2023-11-12 00:54:02,654 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:02" (1/1) ... [2023-11-12 00:54:02,656 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:02" (1/1) ... [2023-11-12 00:54:02,662 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:02" (1/1) ... [2023-11-12 00:54:02,664 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:02" (1/1) ... [2023-11-12 00:54:02,664 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:02" (1/1) ... [2023-11-12 00:54:02,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:54:02,667 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:54:02,668 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:54:02,668 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:54:02,669 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:02" (1/1) ... [2023-11-12 00:54:02,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:54:02,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:54:02,708 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:54:02,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:54:02,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:54:02,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:54:02,821 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:54:02,824 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:54:02,916 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:54:02,951 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:54:02,951 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:54:02,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:54:02 BoogieIcfgContainer [2023-11-12 00:54:02,986 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:54:02,989 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:54:02,989 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:54:02,993 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:54:02,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:54:02" (1/3) ... [2023-11-12 00:54:02,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e3bdba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:54:02, skipping insertion in model container [2023-11-12 00:54:02,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:02" (2/3) ... [2023-11-12 00:54:02,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e3bdba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:54:02, skipping insertion in model container [2023-11-12 00:54:02,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:54:02" (3/3) ... [2023-11-12 00:54:02,996 INFO L112 eAbstractionObserver]: Analyzing ICFG java_Nested.c [2023-11-12 00:54:03,030 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:54:03,031 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-12 00:54:03,105 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:54:03,117 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;@623f3716, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:54:03,117 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-12 00:54:03,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 19 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 00:54:03,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:54:03,129 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:03,129 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:54:03,131 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 00:54:03,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:03,138 INFO L85 PathProgramCache]: Analyzing trace with hash 2365646, now seen corresponding path program 1 times [2023-11-12 00:54:03,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:03,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597979877] [2023-11-12 00:54:03,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:03,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:03,313 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 00:54:03,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:03,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597979877] [2023-11-12 00:54:03,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597979877] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:54:03,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:54:03,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:54:03,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639873941] [2023-11-12 00:54:03,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:54:03,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:54:03,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:03,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:54:03,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:54:03,355 INFO L87 Difference]: Start difference. First operand has 20 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 19 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) 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 00:54:03,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:03,421 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2023-11-12 00:54:03,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:54:03,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) 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 00:54:03,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:03,431 INFO L225 Difference]: With dead ends: 48 [2023-11-12 00:54:03,439 INFO L226 Difference]: Without dead ends: 28 [2023-11-12 00:54:03,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 00:54:03,446 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:03,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 19 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:54:03,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-12 00:54:03,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2023-11-12 00:54:03,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 25 states have internal predecessors, (31), 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 00:54:03,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2023-11-12 00:54:03,494 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 4 [2023-11-12 00:54:03,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:03,494 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2023-11-12 00:54:03,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) 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 00:54:03,495 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2023-11-12 00:54:03,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:54:03,495 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:03,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:54:03,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:54:03,497 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 00:54:03,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:03,498 INFO L85 PathProgramCache]: Analyzing trace with hash 2364701, now seen corresponding path program 1 times [2023-11-12 00:54:03,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:03,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733758615] [2023-11-12 00:54:03,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:03,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:03,540 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 00:54:03,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:03,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733758615] [2023-11-12 00:54:03,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733758615] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:54:03,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:54:03,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:54:03,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422801040] [2023-11-12 00:54:03,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:54:03,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:54:03,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:03,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:54:03,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:54:03,544 INFO L87 Difference]: Start difference. First operand 26 states and 31 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 00:54:03,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:03,574 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2023-11-12 00:54:03,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:54:03,574 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 00:54:03,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:03,575 INFO L225 Difference]: With dead ends: 28 [2023-11-12 00:54:03,576 INFO L226 Difference]: Without dead ends: 27 [2023-11-12 00:54:03,576 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 00:54:03,578 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 5 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:03,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 20 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:54:03,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-11-12 00:54:03,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2023-11-12 00:54:03,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 25 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 00:54:03,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2023-11-12 00:54:03,584 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 4 [2023-11-12 00:54:03,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:03,585 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2023-11-12 00:54:03,585 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 00:54:03,585 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2023-11-12 00:54:03,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-12 00:54:03,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:03,586 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 00:54:03,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:54:03,587 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 00:54:03,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:03,587 INFO L85 PathProgramCache]: Analyzing trace with hash -2022487905, now seen corresponding path program 1 times [2023-11-12 00:54:03,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:03,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951647831] [2023-11-12 00:54:03,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:03,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:03,629 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 00:54:03,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:03,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951647831] [2023-11-12 00:54:03,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951647831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:54:03,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:54:03,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 00:54:03,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195035185] [2023-11-12 00:54:03,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:54:03,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:54:03,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:03,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:54:03,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:54:03,632 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:03,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:03,645 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2023-11-12 00:54:03,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:54:03,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-12 00:54:03,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:03,647 INFO L225 Difference]: With dead ends: 26 [2023-11-12 00:54:03,647 INFO L226 Difference]: Without dead ends: 25 [2023-11-12 00:54:03,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:54:03,649 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:03,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 14 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:54:03,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-12 00:54:03,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-11-12 00:54:03,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 24 states have internal predecessors, (28), 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 00:54:03,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2023-11-12 00:54:03,656 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 6 [2023-11-12 00:54:03,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:03,656 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2023-11-12 00:54:03,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:03,657 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2023-11-12 00:54:03,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:54:03,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:03,658 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:54:03,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:54:03,658 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 00:54:03,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:03,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1727384443, now seen corresponding path program 1 times [2023-11-12 00:54:03,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:03,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303114156] [2023-11-12 00:54:03,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:03,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:03,696 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 00:54:03,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:03,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303114156] [2023-11-12 00:54:03,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303114156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:54:03,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:54:03,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 00:54:03,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501662389] [2023-11-12 00:54:03,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:54:03,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:54:03,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:03,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:54:03,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:54:03,700 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:03,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:03,716 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2023-11-12 00:54:03,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:54:03,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-12 00:54:03,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:03,718 INFO L225 Difference]: With dead ends: 32 [2023-11-12 00:54:03,718 INFO L226 Difference]: Without dead ends: 31 [2023-11-12 00:54:03,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:54:03,720 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:03,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:54:03,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-12 00:54:03,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-12 00:54:03,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 30 states have internal predecessors, (34), 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 00:54:03,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2023-11-12 00:54:03,728 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 7 [2023-11-12 00:54:03,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:03,729 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2023-11-12 00:54:03,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:03,729 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2023-11-12 00:54:03,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:54:03,729 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:03,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:54:03,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:54:03,730 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 00:54:03,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:03,731 INFO L85 PathProgramCache]: Analyzing trace with hash 2009310241, now seen corresponding path program 1 times [2023-11-12 00:54:03,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:03,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862796658] [2023-11-12 00:54:03,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:03,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:03,815 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 00:54:03,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:03,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862796658] [2023-11-12 00:54:03,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862796658] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:54:03,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:54:03,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:54:03,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861241127] [2023-11-12 00:54:03,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:54:03,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:54:03,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:03,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:54:03,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:54:03,818 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:03,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:03,868 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2023-11-12 00:54:03,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:54:03,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-12 00:54:03,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:03,869 INFO L225 Difference]: With dead ends: 31 [2023-11-12 00:54:03,870 INFO L226 Difference]: Without dead ends: 29 [2023-11-12 00:54:03,870 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 [2023-11-12 00:54:03,872 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:03,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 12 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:54:03,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-12 00:54:03,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-12 00:54:03,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 28 states have internal predecessors, (31), 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 00:54:03,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2023-11-12 00:54:03,880 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 8 [2023-11-12 00:54:03,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:03,880 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2023-11-12 00:54:03,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:03,881 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2023-11-12 00:54:03,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 00:54:03,881 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:03,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:54:03,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:54:03,887 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 00:54:03,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:03,890 INFO L85 PathProgramCache]: Analyzing trace with hash 402247408, now seen corresponding path program 1 times [2023-11-12 00:54:03,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:03,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466215226] [2023-11-12 00:54:03,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:03,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:03,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 00:54:03,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:03,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466215226] [2023-11-12 00:54:03,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466215226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:54:03,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:54:03,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 00:54:03,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626529218] [2023-11-12 00:54:03,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:54:03,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:54:03,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:03,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:54:03,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:54:03,961 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 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 00:54:03,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:03,976 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2023-11-12 00:54:03,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:54:03,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 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) Word has length 11 [2023-11-12 00:54:03,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:03,977 INFO L225 Difference]: With dead ends: 29 [2023-11-12 00:54:03,977 INFO L226 Difference]: Without dead ends: 28 [2023-11-12 00:54:03,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:54:03,980 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:03,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 10 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:54:03,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-12 00:54:03,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-12 00:54:03,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 24 states have (on average 1.25) internal successors, (30), 27 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 00:54:03,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2023-11-12 00:54:03,988 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 11 [2023-11-12 00:54:03,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:03,989 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2023-11-12 00:54:03,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 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 00:54:03,989 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2023-11-12 00:54:03,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 00:54:03,990 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:03,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:54:03,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 00:54:03,991 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 00:54:03,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:03,992 INFO L85 PathProgramCache]: Analyzing trace with hash -415232171, now seen corresponding path program 1 times [2023-11-12 00:54:03,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:03,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816873353] [2023-11-12 00:54:03,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:03,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:04,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 00:54:04,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:04,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816873353] [2023-11-12 00:54:04,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816873353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:54:04,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:54:04,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 00:54:04,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948046890] [2023-11-12 00:54:04,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:54:04,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:54:04,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:04,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:54:04,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:54:04,058 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:04,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:04,084 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2023-11-12 00:54:04,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:54:04,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-12 00:54:04,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:04,086 INFO L225 Difference]: With dead ends: 43 [2023-11-12 00:54:04,087 INFO L226 Difference]: Without dead ends: 42 [2023-11-12 00:54:04,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:54:04,089 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:04,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 21 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:54:04,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-12 00:54:04,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2023-11-12 00:54:04,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 38 states have internal predecessors, (45), 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 00:54:04,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2023-11-12 00:54:04,099 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 12 [2023-11-12 00:54:04,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:04,100 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2023-11-12 00:54:04,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:04,100 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2023-11-12 00:54:04,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 00:54:04,101 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:04,101 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:54:04,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 00:54:04,102 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 00:54:04,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:04,102 INFO L85 PathProgramCache]: Analyzing trace with hash -415261481, now seen corresponding path program 1 times [2023-11-12 00:54:04,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:04,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758616226] [2023-11-12 00:54:04,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:04,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:04,178 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 00:54:04,178 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:04,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758616226] [2023-11-12 00:54:04,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758616226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:54:04,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:54:04,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:54:04,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146340087] [2023-11-12 00:54:04,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:54:04,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:54:04,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:04,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:54:04,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:54:04,182 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:04,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:04,218 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2023-11-12 00:54:04,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:54:04,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-12 00:54:04,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:04,220 INFO L225 Difference]: With dead ends: 39 [2023-11-12 00:54:04,220 INFO L226 Difference]: Without dead ends: 37 [2023-11-12 00:54:04,220 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 00:54:04,222 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:04,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 10 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:54:04,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-12 00:54:04,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 29. [2023-11-12 00:54:04,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 28 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:04,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2023-11-12 00:54:04,238 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 12 [2023-11-12 00:54:04,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:04,239 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2023-11-12 00:54:04,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:04,239 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2023-11-12 00:54:04,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:54:04,248 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:04,248 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-12 00:54:04,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 00:54:04,249 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 00:54:04,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:04,249 INFO L85 PathProgramCache]: Analyzing trace with hash 365677081, now seen corresponding path program 1 times [2023-11-12 00:54:04,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:04,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131421924] [2023-11-12 00:54:04,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:04,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:04,326 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:54:04,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:04,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131421924] [2023-11-12 00:54:04,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131421924] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:54:04,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308674886] [2023-11-12 00:54:04,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:04,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:54:04,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:54:04,331 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:54:04,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:54:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:04,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:54:04,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:54:04,497 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:54:04,498 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:54:04,564 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:54:04,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308674886] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:54:04,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1758331713] [2023-11-12 00:54:04,595 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2023-11-12 00:54:04,595 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:54:04,605 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:54:04,611 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:54:04,611 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:54:05,026 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:54:05,196 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '716#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= 2 |ULTIMATE.start_main_~j~0#1|) (<= 2147483647 |ULTIMATE.start_main_~c~0#1|))' at error location [2023-11-12 00:54:05,198 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:54:05,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:54:05,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2023-11-12 00:54:05,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060535321] [2023-11-12 00:54:05,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:54:05,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:54:05,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:05,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:54:05,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-11-12 00:54:05,210 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 00:54:05,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:05,277 INFO L93 Difference]: Finished difference Result 87 states and 100 transitions. [2023-11-12 00:54:05,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:54:05,277 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 14 [2023-11-12 00:54:05,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:05,279 INFO L225 Difference]: With dead ends: 87 [2023-11-12 00:54:05,279 INFO L226 Difference]: Without dead ends: 86 [2023-11-12 00:54:05,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-11-12 00:54:05,280 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 25 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:05,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 46 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:54:05,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-12 00:54:05,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2023-11-12 00:54:05,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 82 states have (on average 1.146341463414634) internal successors, (94), 83 states have internal predecessors, (94), 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 00:54:05,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 94 transitions. [2023-11-12 00:54:05,303 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 94 transitions. Word has length 14 [2023-11-12 00:54:05,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:05,304 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 94 transitions. [2023-11-12 00:54:05,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 00:54:05,304 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2023-11-12 00:54:05,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-12 00:54:05,306 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:05,306 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2023-11-12 00:54:05,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 00:54:05,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:54:05,512 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 00:54:05,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:05,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1769200146, now seen corresponding path program 1 times [2023-11-12 00:54:05,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:05,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474871064] [2023-11-12 00:54:05,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:05,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:05,552 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 00:54:05,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:05,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474871064] [2023-11-12 00:54:05,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474871064] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:54:05,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:54:05,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:54:05,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860589027] [2023-11-12 00:54:05,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:54:05,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:54:05,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:05,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:54:05,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:54:05,554 INFO L87 Difference]: Start difference. First operand 84 states and 94 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 00:54:05,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:05,568 INFO L93 Difference]: Finished difference Result 84 states and 94 transitions. [2023-11-12 00:54:05,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:54:05,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 23 [2023-11-12 00:54:05,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:05,569 INFO L225 Difference]: With dead ends: 84 [2023-11-12 00:54:05,569 INFO L226 Difference]: Without dead ends: 83 [2023-11-12 00:54:05,570 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 00:54:05,571 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:05,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:54:05,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-12 00:54:05,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 52. [2023-11-12 00:54:05,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.0980392156862746) internal successors, (56), 51 states have internal predecessors, (56), 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 00:54:05,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2023-11-12 00:54:05,582 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 23 [2023-11-12 00:54:05,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:05,582 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2023-11-12 00:54:05,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 00:54:05,583 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2023-11-12 00:54:05,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-12 00:54:05,584 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:05,584 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 1, 1, 1] [2023-11-12 00:54:05,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 00:54:05,584 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 00:54:05,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:05,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1371586555, now seen corresponding path program 2 times [2023-11-12 00:54:05,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:05,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895556297] [2023-11-12 00:54:05,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:05,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:05,700 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:54:05,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:05,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895556297] [2023-11-12 00:54:05,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895556297] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:54:05,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724093502] [2023-11-12 00:54:05,701 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 00:54:05,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:54:05,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:54:05,702 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:54:05,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 00:54:05,749 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-11-12 00:54:05,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 00:54:05,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 00:54:05,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:54:05,819 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:54:05,819 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:54:05,937 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:54:05,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724093502] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:54:05,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [936520494] [2023-11-12 00:54:05,941 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2023-11-12 00:54:05,942 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:54:05,942 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:54:05,942 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:54:05,942 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:54:06,135 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:54:06,365 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1314#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= 2 |ULTIMATE.start_main_~j~0#1|) (<= 2147483647 |ULTIMATE.start_main_~c~0#1|))' at error location [2023-11-12 00:54:06,365 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:54:06,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:54:06,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-12 00:54:06,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829666655] [2023-11-12 00:54:06,366 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:54:06,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 00:54:06,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:06,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 00:54:06,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2023-11-12 00:54:06,371 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 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 00:54:06,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:06,468 INFO L93 Difference]: Finished difference Result 119 states and 134 transitions. [2023-11-12 00:54:06,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 00:54:06,468 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 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 35 [2023-11-12 00:54:06,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:06,473 INFO L225 Difference]: With dead ends: 119 [2023-11-12 00:54:06,473 INFO L226 Difference]: Without dead ends: 118 [2023-11-12 00:54:06,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 86 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2023-11-12 00:54:06,474 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 69 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:06,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 89 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:54:06,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-12 00:54:06,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2023-11-12 00:54:06,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 117 states have (on average 1.0940170940170941) internal successors, (128), 117 states have internal predecessors, (128), 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 00:54:06,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 128 transitions. [2023-11-12 00:54:06,493 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 128 transitions. Word has length 35 [2023-11-12 00:54:06,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:06,493 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 128 transitions. [2023-11-12 00:54:06,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 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 00:54:06,493 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 128 transitions. [2023-11-12 00:54:06,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-12 00:54:06,496 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:06,496 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 1, 1, 1] [2023-11-12 00:54:06,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 00:54:06,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:54:06,704 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 00:54:06,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:06,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1582553413, now seen corresponding path program 3 times [2023-11-12 00:54:06,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:06,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235826866] [2023-11-12 00:54:06,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:06,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:07,014 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:54:07,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:07,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235826866] [2023-11-12 00:54:07,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235826866] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:54:07,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288200058] [2023-11-12 00:54:07,015 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-12 00:54:07,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:54:07,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:54:07,020 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:54:07,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 00:54:07,100 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-12 00:54:07,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 00:54:07,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-12 00:54:07,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:54:07,394 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 361 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:54:07,394 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:54:07,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288200058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:54:07,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:54:07,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [11] total 24 [2023-11-12 00:54:07,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803870006] [2023-11-12 00:54:07,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:54:07,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-12 00:54:07,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:07,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-12 00:54:07,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-11-12 00:54:07,398 INFO L87 Difference]: Start difference. First operand 118 states and 128 transitions. Second operand has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 13 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:07,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:07,561 INFO L93 Difference]: Finished difference Result 482 states and 537 transitions. [2023-11-12 00:54:07,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 00:54:07,562 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 13 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-11-12 00:54:07,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:07,567 INFO L225 Difference]: With dead ends: 482 [2023-11-12 00:54:07,567 INFO L226 Difference]: Without dead ends: 466 [2023-11-12 00:54:07,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-11-12 00:54:07,569 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 24 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:07,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 70 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:54:07,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2023-11-12 00:54:07,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 458. [2023-11-12 00:54:07,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 457 states have (on average 1.1334792122538293) internal successors, (518), 457 states have internal predecessors, (518), 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 00:54:07,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 518 transitions. [2023-11-12 00:54:07,630 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 518 transitions. Word has length 77 [2023-11-12 00:54:07,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:07,632 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 518 transitions. [2023-11-12 00:54:07,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 13 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:07,633 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 518 transitions. [2023-11-12 00:54:07,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-12 00:54:07,644 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:07,644 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 2, 1, 1, 1, 1, 1] [2023-11-12 00:54:07,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 00:54:07,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:54:07,853 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 00:54:07,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:07,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1502045668, now seen corresponding path program 1 times [2023-11-12 00:54:07,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:07,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821092884] [2023-11-12 00:54:07,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:07,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:07,981 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 132 proven. 9 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2023-11-12 00:54:07,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:07,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821092884] [2023-11-12 00:54:07,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821092884] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:54:07,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857660029] [2023-11-12 00:54:07,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:07,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:54:07,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:54:07,983 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:54:08,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 00:54:08,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:08,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 00:54:08,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:54:08,081 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 132 proven. 9 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2023-11-12 00:54:08,081 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:54:08,140 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 132 proven. 9 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2023-11-12 00:54:08,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857660029] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:54:08,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [886775847] [2023-11-12 00:54:08,143 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2023-11-12 00:54:08,143 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:54:08,144 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:54:08,144 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:54:08,144 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:54:08,554 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:54:09,110 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3459#(and (<= 2 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 2147483647 |ULTIMATE.start_main_~c~0#1|))' at error location [2023-11-12 00:54:09,110 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:54:09,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:54:09,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2023-11-12 00:54:09,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119714627] [2023-11-12 00:54:09,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:54:09,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 00:54:09,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:09,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 00:54:09,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-11-12 00:54:09,112 INFO L87 Difference]: Start difference. First operand 458 states and 518 transitions. Second operand has 10 states, 10 states have (on average 4.4) internal successors, (44), 10 states have internal predecessors, (44), 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 00:54:09,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:09,180 INFO L93 Difference]: Finished difference Result 605 states and 682 transitions. [2023-11-12 00:54:09,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 00:54:09,184 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 10 states have internal predecessors, (44), 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 81 [2023-11-12 00:54:09,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:09,186 INFO L225 Difference]: With dead ends: 605 [2023-11-12 00:54:09,186 INFO L226 Difference]: Without dead ends: 213 [2023-11-12 00:54:09,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 210 SyntacticMatches, 22 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-11-12 00:54:09,195 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 19 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:09,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 35 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:54:09,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-11-12 00:54:09,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 208. [2023-11-12 00:54:09,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 1.0724637681159421) internal successors, (222), 207 states have internal predecessors, (222), 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 00:54:09,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 222 transitions. [2023-11-12 00:54:09,208 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 222 transitions. Word has length 81 [2023-11-12 00:54:09,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:09,208 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 222 transitions. [2023-11-12 00:54:09,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 10 states have internal predecessors, (44), 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 00:54:09,209 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 222 transitions. [2023-11-12 00:54:09,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-12 00:54:09,210 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:09,210 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 2, 1, 1, 1, 1, 1] [2023-11-12 00:54:09,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 00:54:09,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-12 00:54:09,417 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 00:54:09,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:09,417 INFO L85 PathProgramCache]: Analyzing trace with hash 603999588, now seen corresponding path program 2 times [2023-11-12 00:54:09,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:09,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955262820] [2023-11-12 00:54:09,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:09,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:09,755 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 204 proven. 111 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-11-12 00:54:09,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:09,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955262820] [2023-11-12 00:54:09,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955262820] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:54:09,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118376720] [2023-11-12 00:54:09,756 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 00:54:09,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:54:09,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:54:09,758 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:54:09,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 00:54:09,836 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-11-12 00:54:09,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 00:54:09,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-12 00:54:09,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:54:09,914 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 204 proven. 111 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-11-12 00:54:09,914 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:54:10,071 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 204 proven. 111 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-11-12 00:54:10,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118376720] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:54:10,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [113156298] [2023-11-12 00:54:10,074 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2023-11-12 00:54:10,075 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:54:10,075 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:54:10,075 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:54:10,075 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:54:10,449 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:54:11,026 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4909#(and (<= 2 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 2147483647 |ULTIMATE.start_main_~c~0#1|))' at error location [2023-11-12 00:54:11,026 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:54:11,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:54:11,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 12 [2023-11-12 00:54:11,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546295680] [2023-11-12 00:54:11,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:54:11,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 00:54:11,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:11,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 00:54:11,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2023-11-12 00:54:11,029 INFO L87 Difference]: Start difference. First operand 208 states and 222 transitions. Second operand has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:11,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:11,110 INFO L93 Difference]: Finished difference Result 284 states and 301 transitions. [2023-11-12 00:54:11,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 00:54:11,111 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-11-12 00:54:11,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:11,113 INFO L225 Difference]: With dead ends: 284 [2023-11-12 00:54:11,113 INFO L226 Difference]: Without dead ends: 150 [2023-11-12 00:54:11,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 205 SyntacticMatches, 33 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2023-11-12 00:54:11,114 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 23 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:11,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 35 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:54:11,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-11-12 00:54:11,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 142. [2023-11-12 00:54:11,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.0638297872340425) internal successors, (150), 141 states have internal predecessors, (150), 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 00:54:11,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 150 transitions. [2023-11-12 00:54:11,150 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 150 transitions. Word has length 81 [2023-11-12 00:54:11,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:11,153 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 150 transitions. [2023-11-12 00:54:11,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:11,153 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 150 transitions. [2023-11-12 00:54:11,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-12 00:54:11,154 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:11,155 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 2, 1, 1, 1, 1, 1] [2023-11-12 00:54:11,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-12 00:54:11,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-12 00:54:11,361 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 00:54:11,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:11,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1410955406, now seen corresponding path program 3 times [2023-11-12 00:54:11,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:11,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407903787] [2023-11-12 00:54:11,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:11,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:11,611 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 376 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 00:54:11,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:11,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407903787] [2023-11-12 00:54:11,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407903787] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:54:11,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219135408] [2023-11-12 00:54:11,611 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-12 00:54:11,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:54:11,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:54:11,613 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:54:11,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 00:54:11,673 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-12 00:54:11,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 00:54:11,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-12 00:54:11,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:54:11,791 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 376 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 00:54:11,791 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:54:12,129 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 376 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 00:54:12,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219135408] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:54:12,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [308942654] [2023-11-12 00:54:12,132 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2023-11-12 00:54:12,132 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:54:12,133 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:54:12,133 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:54:12,133 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:54:12,417 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:54:13,055 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5918#(and (<= 2 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 2147483647 |ULTIMATE.start_main_~c~0#1|))' at error location [2023-11-12 00:54:13,055 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:54:13,055 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:54:13,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2023-11-12 00:54:13,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638925144] [2023-11-12 00:54:13,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:54:13,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-12 00:54:13,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:13,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-12 00:54:13,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=301, Invalid=691, Unknown=0, NotChecked=0, Total=992 [2023-11-12 00:54:13,058 INFO L87 Difference]: Start difference. First operand 142 states and 150 transitions. Second operand has 24 states, 23 states have (on average 7.043478260869565) internal successors, (162), 23 states have internal predecessors, (162), 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 00:54:13,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:13,159 INFO L93 Difference]: Finished difference Result 231 states and 250 transitions. [2023-11-12 00:54:13,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-12 00:54:13,160 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 7.043478260869565) internal successors, (162), 23 states have internal predecessors, (162), 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 81 [2023-11-12 00:54:13,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:13,161 INFO L225 Difference]: With dead ends: 231 [2023-11-12 00:54:13,161 INFO L226 Difference]: Without dead ends: 230 [2023-11-12 00:54:13,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 200 SyntacticMatches, 22 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 981 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=301, Invalid=691, Unknown=0, NotChecked=0, Total=992 [2023-11-12 00:54:13,163 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:13,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 143 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:54:13,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2023-11-12 00:54:13,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2023-11-12 00:54:13,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 229 states have (on average 1.039301310043668) internal successors, (238), 229 states have internal predecessors, (238), 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 00:54:13,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 238 transitions. [2023-11-12 00:54:13,175 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 238 transitions. Word has length 81 [2023-11-12 00:54:13,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:13,176 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 238 transitions. [2023-11-12 00:54:13,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 7.043478260869565) internal successors, (162), 23 states have internal predecessors, (162), 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 00:54:13,176 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 238 transitions. [2023-11-12 00:54:13,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-12 00:54:13,177 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:13,178 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 3, 2, 2, 2, 1, 1] [2023-11-12 00:54:13,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 00:54:13,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-12 00:54:13,389 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 00:54:13,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:13,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1198210715, now seen corresponding path program 4 times [2023-11-12 00:54:13,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:13,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436995801] [2023-11-12 00:54:13,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:13,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:14,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1779 backedges. 0 proven. 1777 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:54:14,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:14,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436995801] [2023-11-12 00:54:14,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436995801] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:54:14,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029664619] [2023-11-12 00:54:14,391 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-12 00:54:14,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:54:14,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:54:14,393 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:54:14,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 00:54:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:14,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-12 00:54:14,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:54:14,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1779 backedges. 0 proven. 1777 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:54:14,751 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:54:15,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1779 backedges. 0 proven. 1777 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:54:15,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029664619] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:54:15,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [515915008] [2023-11-12 00:54:15,857 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2023-11-12 00:54:15,857 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:54:15,858 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:54:15,858 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:54:15,858 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:54:16,114 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:54:17,744 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7519#(and (<= 2 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 2147483647 |ULTIMATE.start_main_~c~0#1|))' at error location [2023-11-12 00:54:17,744 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:54:17,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:54:17,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2023-11-12 00:54:17,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539201668] [2023-11-12 00:54:17,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:54:17,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-12 00:54:17,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:17,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-12 00:54:17,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1153, Invalid=1927, Unknown=0, NotChecked=0, Total=3080 [2023-11-12 00:54:17,749 INFO L87 Difference]: Start difference. First operand 230 states and 238 transitions. Second operand has 48 states, 47 states have (on average 7.191489361702128) internal successors, (338), 47 states have internal predecessors, (338), 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 00:54:17,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:17,975 INFO L93 Difference]: Finished difference Result 411 states and 442 transitions. [2023-11-12 00:54:17,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-12 00:54:17,976 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 7.191489361702128) internal successors, (338), 47 states have internal predecessors, (338), 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 169 [2023-11-12 00:54:17,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:17,981 INFO L225 Difference]: With dead ends: 411 [2023-11-12 00:54:17,981 INFO L226 Difference]: Without dead ends: 410 [2023-11-12 00:54:17,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 427 SyntacticMatches, 47 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3810 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1153, Invalid=1927, Unknown=0, NotChecked=0, Total=3080 [2023-11-12 00:54:17,984 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 26 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:17,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 290 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:54:17,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-11-12 00:54:18,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 410. [2023-11-12 00:54:18,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 409 states have (on average 1.02200488997555) internal successors, (418), 409 states have internal predecessors, (418), 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 00:54:18,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 418 transitions. [2023-11-12 00:54:18,007 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 418 transitions. Word has length 169 [2023-11-12 00:54:18,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:18,008 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 418 transitions. [2023-11-12 00:54:18,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 7.191489361702128) internal successors, (338), 47 states have internal predecessors, (338), 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 00:54:18,009 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 418 transitions. [2023-11-12 00:54:18,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2023-11-12 00:54:18,016 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:18,017 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 46, 6, 5, 5, 5, 1, 1] [2023-11-12 00:54:18,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-12 00:54:18,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-12 00:54:18,227 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 00:54:18,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:18,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1382603954, now seen corresponding path program 5 times [2023-11-12 00:54:18,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:18,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592292712] [2023-11-12 00:54:18,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:18,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:18,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:21,458 INFO L134 CoverageAnalysis]: Checked inductivity of 7755 backedges. 0 proven. 7750 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 00:54:21,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:21,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592292712] [2023-11-12 00:54:21,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592292712] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:54:21,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876755968] [2023-11-12 00:54:21,459 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 00:54:21,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:54:21,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:54:21,464 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:54:21,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-12 00:54:21,664 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2023-11-12 00:54:21,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 00:54:21,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-12 00:54:21,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:54:22,170 INFO L134 CoverageAnalysis]: Checked inductivity of 7755 backedges. 0 proven. 7750 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 00:54:22,171 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:54:26,072 INFO L134 CoverageAnalysis]: Checked inductivity of 7755 backedges. 0 proven. 7750 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 00:54:26,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876755968] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:54:26,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1020108820] [2023-11-12 00:54:26,076 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2023-11-12 00:54:26,076 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:54:26,077 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:54:26,077 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:54:26,077 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:54:26,322 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:54:30,660 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10668#(and (<= 2 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 2147483647 |ULTIMATE.start_main_~c~0#1|))' at error location [2023-11-12 00:54:30,660 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:54:30,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:54:30,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 94 [2023-11-12 00:54:30,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523197422] [2023-11-12 00:54:30,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:54:30,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-11-12 00:54:30,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:30,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-11-12 00:54:30,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4585, Invalid=6127, Unknown=0, NotChecked=0, Total=10712 [2023-11-12 00:54:30,670 INFO L87 Difference]: Start difference. First operand 410 states and 418 transitions. Second operand has 96 states, 95 states have (on average 7.347368421052631) internal successors, (698), 95 states have internal predecessors, (698), 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 00:54:31,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:31,230 INFO L93 Difference]: Finished difference Result 767 states and 822 transitions. [2023-11-12 00:54:31,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-11-12 00:54:31,232 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 7.347368421052631) internal successors, (698), 95 states have internal predecessors, (698), 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 349 [2023-11-12 00:54:31,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:31,238 INFO L225 Difference]: With dead ends: 767 [2023-11-12 00:54:31,238 INFO L226 Difference]: Without dead ends: 766 [2023-11-12 00:54:31,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1092 GetRequests, 892 SyntacticMatches, 98 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15009 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=4585, Invalid=6127, Unknown=0, NotChecked=0, Total=10712 [2023-11-12 00:54:31,244 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 22 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:31,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 572 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:54:31,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2023-11-12 00:54:31,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 766. [2023-11-12 00:54:31,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 765 states have (on average 1.011764705882353) internal successors, (774), 765 states have internal predecessors, (774), 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 00:54:31,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 774 transitions. [2023-11-12 00:54:31,280 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 774 transitions. Word has length 349 [2023-11-12 00:54:31,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:31,281 INFO L495 AbstractCegarLoop]: Abstraction has 766 states and 774 transitions. [2023-11-12 00:54:31,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 7.347368421052631) internal successors, (698), 95 states have internal predecessors, (698), 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 00:54:31,281 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 774 transitions. [2023-11-12 00:54:31,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2023-11-12 00:54:31,300 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:31,301 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 94, 94, 11, 10, 10, 10, 1, 1] [2023-11-12 00:54:31,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-12 00:54:31,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-12 00:54:31,508 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-12 00:54:31,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:31,508 INFO L85 PathProgramCache]: Analyzing trace with hash 763791643, now seen corresponding path program 6 times [2023-11-12 00:54:31,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:31,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421305804] [2023-11-12 00:54:31,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:31,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:41,909 INFO L134 CoverageAnalysis]: Checked inductivity of 32207 backedges. 0 proven. 32197 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-12 00:54:41,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:41,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421305804] [2023-11-12 00:54:41,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421305804] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:54:41,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815383537] [2023-11-12 00:54:41,910 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-12 00:54:41,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:54:41,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:54:41,912 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:54:41,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-12 00:54:42,162 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-12 00:54:42,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 00:54:42,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-12 00:54:42,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:54:43,565 INFO L134 CoverageAnalysis]: Checked inductivity of 32207 backedges. 29535 proven. 0 refuted. 0 times theorem prover too weak. 2672 trivial. 0 not checked. [2023-11-12 00:54:43,565 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:54:43,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815383537] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:54:43,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:54:43,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [95] total 107 [2023-11-12 00:54:43,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000787438] [2023-11-12 00:54:43,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:54:43,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-12 00:54:43,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:43,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-12 00:54:43,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4733, Invalid=6823, Unknown=0, NotChecked=0, Total=11556 [2023-11-12 00:54:43,573 INFO L87 Difference]: Start difference. First operand 766 states and 774 transitions. Second operand has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 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 00:54:43,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:43,687 INFO L93 Difference]: Finished difference Result 766 states and 774 transitions. [2023-11-12 00:54:43,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 00:54:43,688 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 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 705 [2023-11-12 00:54:43,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:43,690 INFO L225 Difference]: With dead ends: 766 [2023-11-12 00:54:43,690 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:54:43,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 799 GetRequests, 693 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1034 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=4733, Invalid=6823, Unknown=0, NotChecked=0, Total=11556 [2023-11-12 00:54:43,699 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:43,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 203 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:54:43,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:54:43,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:54:43,700 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 00:54:43,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:54:43,701 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 705 [2023-11-12 00:54:43,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:43,701 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:54:43,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 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 00:54:43,702 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:54:43,702 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:54:43,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-12 00:54:43,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-12 00:54:43,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-12 00:54:43,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-12 00:54:43,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-12 00:54:43,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-12 00:54:43,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-12 00:54:43,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-12 00:54:43,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-12 00:54:43,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-12 00:54:43,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 00:54:48,521 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2023-11-12 00:54:48,521 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 00:54:48,521 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2023-11-12 00:54:48,522 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2023-11-12 00:54:48,522 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2023-11-12 00:54:48,522 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2023-11-12 00:54:48,522 INFO L899 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2023-11-12 00:54:48,522 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2023-11-12 00:54:48,522 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2023-11-12 00:54:48,523 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 00:54:48,523 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2023-11-12 00:54:48,523 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2023-11-12 00:54:48,523 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2023-11-12 00:54:48,523 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2023-11-12 00:54:48,523 INFO L899 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed. [2023-11-12 00:54:48,524 INFO L899 garLoopResultBuilder]: For program point L14-1(line 14) no Hoare annotation was computed. [2023-11-12 00:54:48,526 INFO L895 garLoopResultBuilder]: At program point L12-2(lines 12 16) the Hoare annotation is: (let ((.cse7 (= |ULTIMATE.start_main_~i~0#1| 0)) (.cse4 (<= |ULTIMATE.start_main_~c~0#1| 27)) (.cse18 (<= |ULTIMATE.start_main_~c~0#1| 2147483616)) (.cse30 (<= |ULTIMATE.start_main_~c~0#1| 9)) (.cse23 (<= |ULTIMATE.start_main_~c~0#1| 2147483607)) (.cse29 (<= |ULTIMATE.start_main_~c~0#1| 2147483634)) (.cse9 (= 7 |ULTIMATE.start_main_~j~0#1|)) (.cse27 (<= |ULTIMATE.start_main_~c~0#1| 36)) (.cse1 (= |ULTIMATE.start_main_~j~0#1| 11)) (.cse26 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse21 (= |ULTIMATE.start_main_~j~0#1| 10)) (.cse6 (<= 2 |ULTIMATE.start_main_~i~0#1|)) (.cse19 (<= 3 |ULTIMATE.start_main_~i~0#1|)) (.cse16 (= |ULTIMATE.start_main_~j~0#1| 8)) (.cse24 (<= 5 |ULTIMATE.start_main_~i~0#1|)) (.cse11 (<= |ULTIMATE.start_main_~c~0#1| 45)) (.cse28 (<= |ULTIMATE.start_main_~c~0#1| 2147483625)) (.cse8 (= 3 |ULTIMATE.start_main_~j~0#1|)) (.cse13 (<= 8 |ULTIMATE.start_main_~i~0#1|)) (.cse17 (<= 7 |ULTIMATE.start_main_~i~0#1|)) (.cse20 (= 9 |ULTIMATE.start_main_~j~0#1|)) (.cse25 (= 9 |ULTIMATE.start_main_~i~0#1|)) (.cse5 (<= 12 |ULTIMATE.start_main_~j~0#1|)) (.cse31 (<= |ULTIMATE.start_main_~c~0#1| 18)) (.cse14 (= 5 |ULTIMATE.start_main_~j~0#1|)) (.cse3 (<= 6 |ULTIMATE.start_main_~i~0#1|)) (.cse12 (= |ULTIMATE.start_main_~j~0#1| 4)) (.cse10 (<= 4 |ULTIMATE.start_main_~i~0#1|)) (.cse15 (<= 1 |ULTIMATE.start_main_~i~0#1|)) (.cse22 (= 6 |ULTIMATE.start_main_~j~0#1|)) (.cse0 (<= 0 |ULTIMATE.start_main_~c~0#1|)) (.cse2 (<= |ULTIMATE.start_main_~i~0#1| 9))) (or (and .cse0 .cse1 (<= |ULTIMATE.start_main_~c~0#1| 2147483615) .cse2 .cse3) (and .cse4 .cse0 .cse5 .cse6 .cse2) (and (= |ULTIMATE.start_main_~c~0#1| 0) .cse7 .cse8) (and .cse0 .cse9 (<= |ULTIMATE.start_main_~c~0#1| 40) .cse2 .cse10) (and .cse11 .cse0 .cse5 .cse2 .cse10) (and .cse12 .cse7 (<= |ULTIMATE.start_main_~c~0#1| 1) .cse0) (and (<= |ULTIMATE.start_main_~c~0#1| 2147483627) .cse0 .cse2 .cse13 .cse14) (and .cse15 (<= |ULTIMATE.start_main_~c~0#1| 14) .cse0 .cse2 .cse16) (and .cse17 .cse18 .cse0 .cse8 .cse2) (and (<= |ULTIMATE.start_main_~c~0#1| 33) .cse0 .cse19 .cse20 .cse2) (and (<= |ULTIMATE.start_main_~c~0#1| 24) .cse0 .cse6 .cse20 .cse2) (and .cse0 .cse19 (<= |ULTIMATE.start_main_~c~0#1| 31) .cse9 .cse2) (and (<= |ULTIMATE.start_main_~c~0#1| 38) .cse0 .cse2 .cse14 .cse10) (and (<= |ULTIMATE.start_main_~c~0#1| 2147483611) .cse0 .cse9 .cse2 .cse3) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 2147483614) .cse2 .cse21 .cse3) (and .cse22 .cse0 .cse19 .cse2 (<= |ULTIMATE.start_main_~c~0#1| 30)) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~c~0#1| 26) .cse6 .cse2) (and .cse23 .cse0 .cse8 .cse2 .cse3) (and .cse24 .cse0 (<= |ULTIMATE.start_main_~c~0#1| 2147483603) .cse2 .cse16) (and .cse12 .cse15 (<= |ULTIMATE.start_main_~c~0#1| 10) .cse0 .cse2) (and (<= |ULTIMATE.start_main_~c~0#1| 43) .cse0 .cse2 .cse21 .cse10) (and .cse17 (<= |ULTIMATE.start_main_~c~0#1| 2147483620) .cse0 .cse9 .cse2) (and (<= |ULTIMATE.start_main_~c~0#1| 2147483637) .cse22 .cse25 .cse0) (and .cse24 .cse0 .cse20 .cse2 (<= |ULTIMATE.start_main_~c~0#1| 2147483604)) (and (<= |ULTIMATE.start_main_~c~0#1| 2147483605) .cse24 .cse0 .cse2 .cse21) (and (<= |ULTIMATE.start_main_~c~0#1| 2147483632) .cse0 .cse2 .cse21 .cse13) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 20) .cse6 .cse2 .cse14) (and .cse15 (<= |ULTIMATE.start_main_~c~0#1| 15) .cse0 .cse20 .cse2) (and (<= |ULTIMATE.start_main_~c~0#1| 25) .cse0 .cse6 .cse2 .cse21) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 2147483612) .cse2 .cse3 .cse16) (and .cse0 .cse26 (<= |ULTIMATE.start_main_~c~0#1| 6) .cse20 .cse2) (and .cse12 .cse17 .cse0 .cse2 (<= |ULTIMATE.start_main_~c~0#1| 2147483617)) (and .cse0 .cse9 .cse2 (<= |ULTIMATE.start_main_~c~0#1| 2147483629) .cse13) (and (<= |ULTIMATE.start_main_~c~0#1| 2147483606) .cse24 .cse0 .cse1 .cse2) (and (<= |ULTIMATE.start_main_~c~0#1| 21) .cse22 .cse0 .cse6 .cse2) (and (<= |ULTIMATE.start_main_~c~0#1| 2147483600) .cse24 .cse0 .cse2 .cse14) (and .cse27 .cse0 .cse8 .cse2 .cse10) (and (<= |ULTIMATE.start_main_~c~0#1| 2147483613) .cse0 .cse20 .cse2 .cse3) (and (<= |ULTIMATE.start_main_~c~0#1| 35) .cse0 .cse19 .cse1 .cse2) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 8) .cse1 .cse26 .cse2) (and .cse15 .cse0 .cse9 .cse2 (<= |ULTIMATE.start_main_~c~0#1| 13)) (and .cse17 .cse28 .cse0 .cse5 .cse2) (and .cse22 .cse0 (<= |ULTIMATE.start_main_~c~0#1| 2147483610) .cse2 .cse3) (and .cse17 .cse0 (<= |ULTIMATE.start_main_~c~0#1| 2147483623) .cse2 .cse21) (and (<= |ULTIMATE.start_main_~c~0#1| 4) .cse0 .cse26 .cse9 .cse2) (and .cse22 .cse0 .cse26 .cse2 (<= |ULTIMATE.start_main_~c~0#1| 3)) (and (<= |ULTIMATE.start_main_~c~0#1| 2147483628) .cse22 .cse0 .cse2 .cse13) (and .cse12 .cse0 .cse2 .cse3 (<= |ULTIMATE.start_main_~c~0#1| 2147483608)) (and .cse29 .cse0 .cse5 .cse2 .cse13) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~c~0#1| 44) .cse2 .cse10) (and .cse0 .cse2 .cse10 (<= |ULTIMATE.start_main_~c~0#1| 41) .cse16) (and .cse4 .cse0 .cse19 .cse8 .cse2) (and .cse24 (<= |ULTIMATE.start_main_~c~0#1| 2147483602) .cse0 .cse9 .cse2) (and .cse12 .cse0 (<= |ULTIMATE.start_main_~c~0#1| 2147483626) .cse2 .cse13) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 23) .cse6 .cse2 .cse16) (and .cse25 .cse0 .cse5 (<= |ULTIMATE.start_main_~c~0#1| 2147483643)) (and .cse18 .cse0 .cse5 .cse2 .cse3) (and (<= |ULTIMATE.start_main_~c~0#1| 42) .cse0 .cse20 .cse2 .cse10) (and .cse15 .cse0 .cse2 .cse21 (<= |ULTIMATE.start_main_~c~0#1| 16)) (and .cse0 .cse2 (<= |ULTIMATE.start_main_~c~0#1| 2147483630) .cse13 .cse16) (and .cse0 .cse26 .cse5 .cse30 .cse2) (and .cse17 .cse0 (<= |ULTIMATE.start_main_~c~0#1| 2147483618) .cse2 .cse14) (and .cse12 (<= |ULTIMATE.start_main_~c~0#1| 28) .cse0 .cse19 .cse2) (and .cse22 (<= |ULTIMATE.start_main_~c~0#1| 39) .cse0 .cse2 .cse10) (and .cse12 .cse24 .cse0 .cse2 (<= |ULTIMATE.start_main_~c~0#1| 46)) (and .cse15 .cse0 .cse8 .cse30 .cse2) (and .cse15 .cse0 (<= |ULTIMATE.start_main_~c~0#1| 11) .cse2 .cse14) (and .cse23 .cse24 .cse0 .cse5 .cse2) (and (<= |ULTIMATE.start_main_~c~0#1| 2147483633) .cse0 .cse1 .cse2 .cse13) (and .cse0 .cse19 .cse2 (<= |ULTIMATE.start_main_~c~0#1| 29) .cse14) (and .cse17 (<= |ULTIMATE.start_main_~c~0#1| 2147483619) .cse22 .cse0 .cse2) (and .cse25 .cse0 .cse1 (<= |ULTIMATE.start_main_~c~0#1| 2147483642)) (and (<= |ULTIMATE.start_main_~c~0#1| 2147483641) .cse25 .cse0 .cse21) (and .cse12 (<= |ULTIMATE.start_main_~c~0#1| 19) .cse0 .cse6 .cse2) (and .cse25 .cse29 .cse0 .cse8) (and .cse25 (<= |ULTIMATE.start_main_~c~0#1| 2147483638) .cse0 .cse9) (and .cse25 (<= |ULTIMATE.start_main_~c~0#1| 2147483639) .cse0 .cse16) (and (<= |ULTIMATE.start_main_~c~0#1| 5) .cse0 .cse26 .cse2 .cse16) (and .cse15 .cse0 .cse1 .cse2 (<= |ULTIMATE.start_main_~c~0#1| 17)) (and .cse25 .cse0 .cse20 (<= |ULTIMATE.start_main_~c~0#1| 2147483640)) (and (<= |ULTIMATE.start_main_~c~0#1| 22) .cse0 .cse9 .cse6 .cse2) (and .cse27 .cse0 .cse19 .cse5 .cse2) (and .cse0 .cse26 (<= |ULTIMATE.start_main_~c~0#1| 7) .cse2 .cse21) (and (<= |ULTIMATE.start_main_~c~0#1| 2147483621) .cse17 .cse0 .cse2 .cse16) (and .cse22 .cse24 .cse0 (<= |ULTIMATE.start_main_~c~0#1| 2147483601) .cse2) (and .cse17 .cse0 (<= |ULTIMATE.start_main_~c~0#1| 2147483624) .cse1 .cse2) (and (<= |ULTIMATE.start_main_~c~0#1| 2147483636) .cse25 .cse0 .cse14) (and .cse0 .cse26 (<= |ULTIMATE.start_main_~c~0#1| 2) .cse2 .cse14) (and .cse0 .cse19 .cse2 .cse21 (<= |ULTIMATE.start_main_~c~0#1| 34)) (and .cse0 .cse8 .cse6 .cse31 .cse2) (and .cse0 .cse19 .cse2 (<= |ULTIMATE.start_main_~c~0#1| 32) .cse16) (and .cse24 .cse11 .cse0 .cse8 .cse2) (and .cse28 .cse0 .cse8 .cse2 .cse13) (and (<= |ULTIMATE.start_main_~c~0#1| 2147483631) .cse0 .cse20 .cse2 .cse13) (and .cse17 .cse0 .cse20 .cse2 (<= |ULTIMATE.start_main_~c~0#1| 2147483622)) (and .cse12 .cse25 .cse0 (<= |ULTIMATE.start_main_~c~0#1| 2147483635)) (and .cse15 .cse0 .cse5 .cse31 .cse2) (and .cse0 .cse2 .cse14 .cse3 (<= |ULTIMATE.start_main_~c~0#1| 2147483609)) (and .cse12 (<= |ULTIMATE.start_main_~c~0#1| 37) .cse0 .cse2 .cse10) (and .cse15 .cse22 .cse0 (<= |ULTIMATE.start_main_~c~0#1| 12) .cse2))) [2023-11-12 00:54:48,527 INFO L899 garLoopResultBuilder]: For program point L12-3(lines 12 16) no Hoare annotation was computed. [2023-11-12 00:54:48,527 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2023-11-12 00:54:48,528 INFO L895 garLoopResultBuilder]: At program point L10-2(lines 10 18) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~c~0#1|)) (.cse1 (<= 12 |ULTIMATE.start_main_~j~0#1|))) (or (and (<= 7 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 2147483616) .cse0 .cse1) (and .cse0 .cse1 (<= 2 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 18)) (and (<= |ULTIMATE.start_main_~c~0#1| 2147483634) .cse0 .cse1 (<= 9 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 2147483625) .cse0 .cse1 (<= 8 |ULTIMATE.start_main_~i~0#1|)) (and (<= 5 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 45) .cse0 .cse1) (and (<= 10 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 (<= |ULTIMATE.start_main_~c~0#1| 2147483643)) (and (<= |ULTIMATE.start_main_~c~0#1| 2147483607) .cse0 .cse1 (<= 6 |ULTIMATE.start_main_~i~0#1|)) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 (<= |ULTIMATE.start_main_~c~0#1| 9)) (and (<= |ULTIMATE.start_main_~c~0#1| 36) .cse0 .cse1 (<= 4 |ULTIMATE.start_main_~i~0#1|)) (and (= |ULTIMATE.start_main_~c~0#1| 0) (= |ULTIMATE.start_main_~i~0#1| 0)) (and (<= |ULTIMATE.start_main_~c~0#1| 27) .cse0 (<= 3 |ULTIMATE.start_main_~i~0#1|) .cse1))) [2023-11-12 00:54:48,531 INFO L445 BasicCegarLoop]: Path program histogram: [6, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:54:48,533 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:54:48,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:54:48 BoogieIcfgContainer [2023-11-12 00:54:48,593 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:54:48,594 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:54:48,594 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:54:48,594 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:54:48,595 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:54:02" (3/4) ... [2023-11-12 00:54:48,597 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:54:48,605 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-12 00:54:48,605 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-12 00:54:48,605 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-12 00:54:48,719 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:54:48,720 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:54:48,721 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:54:48,721 INFO L158 Benchmark]: Toolchain (without parser) took 46306.44ms. Allocated memory was 151.0MB in the beginning and 696.3MB in the end (delta: 545.3MB). Free memory was 123.4MB in the beginning and 442.0MB in the end (delta: -318.6MB). Peak memory consumption was 227.4MB. Max. memory is 16.1GB. [2023-11-12 00:54:48,722 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 151.0MB. Free memory was 125.1MB in the beginning and 125.0MB in the end (delta: 79.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:54:48,722 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.19ms. Allocated memory is still 151.0MB. Free memory was 123.1MB in the beginning and 113.8MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 00:54:48,722 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.99ms. Allocated memory is still 151.0MB. Free memory was 113.8MB in the beginning and 112.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:54:48,723 INFO L158 Benchmark]: Boogie Preprocessor took 20.37ms. Allocated memory is still 151.0MB. Free memory was 112.6MB in the beginning and 111.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:54:48,723 INFO L158 Benchmark]: RCFGBuilder took 319.05ms. Allocated memory is still 151.0MB. Free memory was 111.3MB in the beginning and 122.0MB in the end (delta: -10.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:54:48,724 INFO L158 Benchmark]: TraceAbstraction took 45604.22ms. Allocated memory was 151.0MB in the beginning and 696.3MB in the end (delta: 545.3MB). Free memory was 121.3MB in the beginning and 446.2MB in the end (delta: -324.9MB). Peak memory consumption was 425.8MB. Max. memory is 16.1GB. [2023-11-12 00:54:48,725 INFO L158 Benchmark]: Witness Printer took 126.78ms. Allocated memory is still 696.3MB. Free memory was 446.2MB in the beginning and 442.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:54:48,729 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 151.0MB. Free memory was 125.1MB in the beginning and 125.0MB in the end (delta: 79.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 195.19ms. Allocated memory is still 151.0MB. Free memory was 123.1MB in the beginning and 113.8MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.99ms. Allocated memory is still 151.0MB. Free memory was 113.8MB in the beginning and 112.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.37ms. Allocated memory is still 151.0MB. Free memory was 112.6MB in the beginning and 111.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 319.05ms. Allocated memory is still 151.0MB. Free memory was 111.3MB in the beginning and 122.0MB in the end (delta: -10.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 45604.22ms. Allocated memory was 151.0MB in the beginning and 696.3MB in the end (delta: 545.3MB). Free memory was 121.3MB in the beginning and 446.2MB in the end (delta: -324.9MB). Peak memory consumption was 425.8MB. Max. memory is 16.1GB. * Witness Printer took 126.78ms. Allocated memory is still 696.3MB. Free memory was 446.2MB in the beginning and 442.0MB 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: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: 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, 20 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 45.4s, OverallIterations: 18, TraceHistogramMax: 95, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.1s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 262 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 262 mSDsluCounter, 1626 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1369 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 918 IncrementalHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 257 mSDtfsCounter, 918 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3428 GetRequests, 2813 SyntacticMatches, 229 SemanticMatches, 386 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22031 ImplicationChecksByTransitivity, 19.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=766occurred in iteration=17, InterpolantAutomatonStates: 262, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 68 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 113 NumberOfFragments, 1700 HoareAnnotationTreeSize, 2 FomulaSimplifications, 2757 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 2 FomulaSimplificationsInter, 72 FormulaSimplificationTreeSizeReductionInter, 3.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 24.2s InterpolantComputationTime, 3271 NumberOfCodeBlocks, 3271 NumberOfCodeBlocksAsserted, 87 NumberOfCheckSat, 4047 ConstructedInterpolants, 0 QuantifiedInterpolants, 11389 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2995 ConjunctsInSsa, 145 ConjunctsInUnsatCore, 34 InterpolantComputations, 11 PerfectInterpolantSequences, 34528/97360 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 8 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((0 <= c) && (j == 11)) && (c <= 2147483615)) && (i <= 9)) && (6 <= i)) || (((((c <= 27) && (0 <= c)) && (12 <= j)) && (2 <= i)) && (i <= 9))) || (((c == 0) && (i == 0)) && (3 == j))) || (((((0 <= c) && (7 == j)) && (c <= 40)) && (i <= 9)) && (4 <= i))) || (((((c <= 45) && (0 <= c)) && (12 <= j)) && (i <= 9)) && (4 <= i))) || ((((j == 4) && (i == 0)) && (c <= 1)) && (0 <= c))) || (((((c <= 2147483627) && (0 <= c)) && (i <= 9)) && (8 <= i)) && (5 == j))) || (((((1 <= i) && (c <= 14)) && (0 <= c)) && (i <= 9)) && (j == 8))) || (((((7 <= i) && (c <= 2147483616)) && (0 <= c)) && (3 == j)) && (i <= 9))) || (((((c <= 33) && (0 <= c)) && (3 <= i)) && (9 == j)) && (i <= 9))) || (((((c <= 24) && (0 <= c)) && (2 <= i)) && (9 == j)) && (i <= 9))) || (((((0 <= c) && (3 <= i)) && (c <= 31)) && (7 == j)) && (i <= 9))) || (((((c <= 38) && (0 <= c)) && (i <= 9)) && (5 == j)) && (4 <= i))) || (((((c <= 2147483611) && (0 <= c)) && (7 == j)) && (i <= 9)) && (6 <= i))) || (((((0 <= c) && (c <= 2147483614)) && (i <= 9)) && (j == 10)) && (6 <= i))) || (((((6 == j) && (0 <= c)) && (3 <= i)) && (i <= 9)) && (c <= 30))) || (((((0 <= c) && (j == 11)) && (c <= 26)) && (2 <= i)) && (i <= 9))) || (((((c <= 2147483607) && (0 <= c)) && (3 == j)) && (i <= 9)) && (6 <= i))) || (((((5 <= i) && (0 <= c)) && (c <= 2147483603)) && (i <= 9)) && (j == 8))) || (((((j == 4) && (1 <= i)) && (c <= 10)) && (0 <= c)) && (i <= 9))) || (((((c <= 43) && (0 <= c)) && (i <= 9)) && (j == 10)) && (4 <= i))) || (((((7 <= i) && (c <= 2147483620)) && (0 <= c)) && (7 == j)) && (i <= 9))) || ((((c <= 2147483637) && (6 == j)) && (9 == i)) && (0 <= c))) || (((((5 <= i) && (0 <= c)) && (9 == j)) && (i <= 9)) && (c <= 2147483604))) || (((((c <= 2147483605) && (5 <= i)) && (0 <= c)) && (i <= 9)) && (j == 10))) || (((((c <= 2147483632) && (0 <= c)) && (i <= 9)) && (j == 10)) && (8 <= i))) || (((((0 <= c) && (c <= 20)) && (2 <= i)) && (i <= 9)) && (5 == j))) || (((((1 <= i) && (c <= 15)) && (0 <= c)) && (9 == j)) && (i <= 9))) || (((((c <= 25) && (0 <= c)) && (2 <= i)) && (i <= 9)) && (j == 10))) || (((((0 <= c) && (c <= 2147483612)) && (i <= 9)) && (6 <= i)) && (j == 8))) || (((((0 <= c) && (0 <= i)) && (c <= 6)) && (9 == j)) && (i <= 9))) || (((((j == 4) && (7 <= i)) && (0 <= c)) && (i <= 9)) && (c <= 2147483617))) || (((((0 <= c) && (7 == j)) && (i <= 9)) && (c <= 2147483629)) && (8 <= i))) || (((((c <= 2147483606) && (5 <= i)) && (0 <= c)) && (j == 11)) && (i <= 9))) || (((((c <= 21) && (6 == j)) && (0 <= c)) && (2 <= i)) && (i <= 9))) || (((((c <= 2147483600) && (5 <= i)) && (0 <= c)) && (i <= 9)) && (5 == j))) || (((((c <= 36) && (0 <= c)) && (3 == j)) && (i <= 9)) && (4 <= i))) || (((((c <= 2147483613) && (0 <= c)) && (9 == j)) && (i <= 9)) && (6 <= i))) || (((((c <= 35) && (0 <= c)) && (3 <= i)) && (j == 11)) && (i <= 9))) || (((((0 <= c) && (c <= 8)) && (j == 11)) && (0 <= i)) && (i <= 9))) || (((((1 <= i) && (0 <= c)) && (7 == j)) && (i <= 9)) && (c <= 13))) || (((((7 <= i) && (c <= 2147483625)) && (0 <= c)) && (12 <= j)) && (i <= 9))) || (((((6 == j) && (0 <= c)) && (c <= 2147483610)) && (i <= 9)) && (6 <= i))) || (((((7 <= i) && (0 <= c)) && (c <= 2147483623)) && (i <= 9)) && (j == 10))) || (((((c <= 4) && (0 <= c)) && (0 <= i)) && (7 == j)) && (i <= 9))) || (((((6 == j) && (0 <= c)) && (0 <= i)) && (i <= 9)) && (c <= 3))) || (((((c <= 2147483628) && (6 == j)) && (0 <= c)) && (i <= 9)) && (8 <= i))) || (((((j == 4) && (0 <= c)) && (i <= 9)) && (6 <= i)) && (c <= 2147483608))) || (((((c <= 2147483634) && (0 <= c)) && (12 <= j)) && (i <= 9)) && (8 <= i))) || (((((0 <= c) && (j == 11)) && (c <= 44)) && (i <= 9)) && (4 <= i))) || (((((0 <= c) && (i <= 9)) && (4 <= i)) && (c <= 41)) && (j == 8))) || (((((c <= 27) && (0 <= c)) && (3 <= i)) && (3 == j)) && (i <= 9))) || (((((5 <= i) && (c <= 2147483602)) && (0 <= c)) && (7 == j)) && (i <= 9))) || (((((j == 4) && (0 <= c)) && (c <= 2147483626)) && (i <= 9)) && (8 <= i))) || (((((0 <= c) && (c <= 23)) && (2 <= i)) && (i <= 9)) && (j == 8))) || ((((9 == i) && (0 <= c)) && (12 <= j)) && (c <= 2147483643))) || (((((c <= 2147483616) && (0 <= c)) && (12 <= j)) && (i <= 9)) && (6 <= i))) || (((((c <= 42) && (0 <= c)) && (9 == j)) && (i <= 9)) && (4 <= i))) || (((((1 <= i) && (0 <= c)) && (i <= 9)) && (j == 10)) && (c <= 16))) || (((((0 <= c) && (i <= 9)) && (c <= 2147483630)) && (8 <= i)) && (j == 8))) || (((((0 <= c) && (0 <= i)) && (12 <= j)) && (c <= 9)) && (i <= 9))) || (((((7 <= i) && (0 <= c)) && (c <= 2147483618)) && (i <= 9)) && (5 == j))) || (((((j == 4) && (c <= 28)) && (0 <= c)) && (3 <= i)) && (i <= 9))) || (((((6 == j) && (c <= 39)) && (0 <= c)) && (i <= 9)) && (4 <= i))) || (((((j == 4) && (5 <= i)) && (0 <= c)) && (i <= 9)) && (c <= 46))) || (((((1 <= i) && (0 <= c)) && (3 == j)) && (c <= 9)) && (i <= 9))) || (((((1 <= i) && (0 <= c)) && (c <= 11)) && (i <= 9)) && (5 == j))) || (((((c <= 2147483607) && (5 <= i)) && (0 <= c)) && (12 <= j)) && (i <= 9))) || (((((c <= 2147483633) && (0 <= c)) && (j == 11)) && (i <= 9)) && (8 <= i))) || (((((0 <= c) && (3 <= i)) && (i <= 9)) && (c <= 29)) && (5 == j))) || (((((7 <= i) && (c <= 2147483619)) && (6 == j)) && (0 <= c)) && (i <= 9))) || ((((9 == i) && (0 <= c)) && (j == 11)) && (c <= 2147483642))) || ((((c <= 2147483641) && (9 == i)) && (0 <= c)) && (j == 10))) || (((((j == 4) && (c <= 19)) && (0 <= c)) && (2 <= i)) && (i <= 9))) || ((((9 == i) && (c <= 2147483634)) && (0 <= c)) && (3 == j))) || ((((9 == i) && (c <= 2147483638)) && (0 <= c)) && (7 == j))) || ((((9 == i) && (c <= 2147483639)) && (0 <= c)) && (j == 8))) || (((((c <= 5) && (0 <= c)) && (0 <= i)) && (i <= 9)) && (j == 8))) || (((((1 <= i) && (0 <= c)) && (j == 11)) && (i <= 9)) && (c <= 17))) || ((((9 == i) && (0 <= c)) && (9 == j)) && (c <= 2147483640))) || (((((c <= 22) && (0 <= c)) && (7 == j)) && (2 <= i)) && (i <= 9))) || (((((c <= 36) && (0 <= c)) && (3 <= i)) && (12 <= j)) && (i <= 9))) || (((((0 <= c) && (0 <= i)) && (c <= 7)) && (i <= 9)) && (j == 10))) || (((((c <= 2147483621) && (7 <= i)) && (0 <= c)) && (i <= 9)) && (j == 8))) || (((((6 == j) && (5 <= i)) && (0 <= c)) && (c <= 2147483601)) && (i <= 9))) || (((((7 <= i) && (0 <= c)) && (c <= 2147483624)) && (j == 11)) && (i <= 9))) || ((((c <= 2147483636) && (9 == i)) && (0 <= c)) && (5 == j))) || (((((0 <= c) && (0 <= i)) && (c <= 2)) && (i <= 9)) && (5 == j))) || (((((0 <= c) && (3 <= i)) && (i <= 9)) && (j == 10)) && (c <= 34))) || (((((0 <= c) && (3 == j)) && (2 <= i)) && (c <= 18)) && (i <= 9))) || (((((0 <= c) && (3 <= i)) && (i <= 9)) && (c <= 32)) && (j == 8))) || (((((5 <= i) && (c <= 45)) && (0 <= c)) && (3 == j)) && (i <= 9))) || (((((c <= 2147483625) && (0 <= c)) && (3 == j)) && (i <= 9)) && (8 <= i))) || (((((c <= 2147483631) && (0 <= c)) && (9 == j)) && (i <= 9)) && (8 <= i))) || (((((7 <= i) && (0 <= c)) && (9 == j)) && (i <= 9)) && (c <= 2147483622))) || ((((j == 4) && (9 == i)) && (0 <= c)) && (c <= 2147483635))) || (((((1 <= i) && (0 <= c)) && (12 <= j)) && (c <= 18)) && (i <= 9))) || (((((0 <= c) && (i <= 9)) && (5 == j)) && (6 <= i)) && (c <= 2147483609))) || (((((j == 4) && (c <= 37)) && (0 <= c)) && (i <= 9)) && (4 <= i))) || (((((1 <= i) && (6 == j)) && (0 <= c)) && (c <= 12)) && (i <= 9))) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: ((((((((((((((7 <= i) && (c <= 2147483616)) && (0 <= c)) && (12 <= j)) || ((((0 <= c) && (12 <= j)) && (2 <= i)) && (c <= 18))) || ((((c <= 2147483634) && (0 <= c)) && (12 <= j)) && (9 <= i))) || ((((c <= 2147483625) && (0 <= c)) && (12 <= j)) && (8 <= i))) || ((((5 <= i) && (c <= 45)) && (0 <= c)) && (12 <= j))) || ((((10 <= i) && (0 <= c)) && (12 <= j)) && (c <= 2147483643))) || ((((c <= 2147483607) && (0 <= c)) && (12 <= j)) && (6 <= i))) || ((((1 <= i) && (0 <= c)) && (12 <= j)) && (c <= 9))) || ((((c <= 36) && (0 <= c)) && (12 <= j)) && (4 <= i))) || ((c == 0) && (i == 0))) || ((((c <= 27) && (0 <= c)) && (3 <= i)) && (12 <= j))) RESULT: Ultimate proved your program to be correct! [2023-11-12 00:54:48,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f522cc83-6f60-4ed0-abf3-c0cdcaee10b4/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0