./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_24.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_24.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ --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 6c60292dde23ab55828ef032d9fe2f87b2621bfa03c7b2d7ca1f8181db5f622f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:52:40,781 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:52:40,895 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-19 04:52:40,899 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:52:40,899 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:52:40,941 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:52:40,942 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:52:40,943 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:52:40,943 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:52:40,948 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:52:40,948 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:52:40,950 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:52:40,950 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:52:40,951 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:52:40,952 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:52:40,952 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:52:40,953 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:52:40,953 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:52:40,953 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:52:40,954 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:52:40,954 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:52:40,955 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:52:40,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:52:40,956 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:52:40,956 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:52:40,957 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:52:40,957 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:52:40,958 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:52:40,958 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:52:40,958 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:52:40,959 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:52:40,960 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:52:40,960 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:52:40,960 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:52:40,960 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:52:40,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:52:40,961 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:52:40,961 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:52:40,961 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:52:40,961 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:52:40,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:52:40,962 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:52:40,963 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:52:40,963 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:52:40,963 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_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c60292dde23ab55828ef032d9fe2f87b2621bfa03c7b2d7ca1f8181db5f622f [2023-11-19 04:52:41,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:52:41,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:52:41,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:52:41,279 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:52:41,279 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:52:41,281 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/termination-restricted-15/NO_24.c [2023-11-19 04:52:44,323 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:52:44,507 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:52:44,507 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/sv-benchmarks/c/termination-restricted-15/NO_24.c [2023-11-19 04:52:44,513 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ/data/675bf08c9/a841dd95bf9f4668b9b883a69daf6227/FLAG4e7d43a72 [2023-11-19 04:52:44,526 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ/data/675bf08c9/a841dd95bf9f4668b9b883a69daf6227 [2023-11-19 04:52:44,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:52:44,530 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:52:44,532 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:52:44,532 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:52:44,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:52:44,544 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:52:44" (1/1) ... [2023-11-19 04:52:44,545 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@153326c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:44, skipping insertion in model container [2023-11-19 04:52:44,545 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:52:44" (1/1) ... [2023-11-19 04:52:44,567 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:52:44,699 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:52:44,705 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:52:44,716 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:52:44,728 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:52:44,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:44 WrapperNode [2023-11-19 04:52:44,729 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:52:44,730 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:52:44,731 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:52:44,731 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:52:44,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:44" (1/1) ... [2023-11-19 04:52:44,740 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:44" (1/1) ... [2023-11-19 04:52:44,757 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2023-11-19 04:52:44,757 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:52:44,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:52:44,758 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:52:44,758 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:52:44,764 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:44" (1/1) ... [2023-11-19 04:52:44,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:44" (1/1) ... [2023-11-19 04:52:44,765 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:44" (1/1) ... [2023-11-19 04:52:44,765 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:44" (1/1) ... [2023-11-19 04:52:44,767 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:44" (1/1) ... [2023-11-19 04:52:44,769 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:44" (1/1) ... [2023-11-19 04:52:44,770 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:44" (1/1) ... [2023-11-19 04:52:44,771 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:44" (1/1) ... [2023-11-19 04:52:44,772 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:52:44,773 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:52:44,773 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:52:44,773 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:52:44,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:44" (1/1) ... [2023-11-19 04:52:44,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:52:44,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:52:44,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:52:44,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:52:44,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:52:44,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:52:44,947 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:52:44,949 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:52:45,055 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:52:45,068 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:52:45,068 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:52:45,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:52:45 BoogieIcfgContainer [2023-11-19 04:52:45,073 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:52:45,076 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:52:45,076 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:52:45,080 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:52:45,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:52:44" (1/3) ... [2023-11-19 04:52:45,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f81d25c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:52:45, skipping insertion in model container [2023-11-19 04:52:45,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:44" (2/3) ... [2023-11-19 04:52:45,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f81d25c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:52:45, skipping insertion in model container [2023-11-19 04:52:45,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:52:45" (3/3) ... [2023-11-19 04:52:45,083 INFO L112 eAbstractionObserver]: Analyzing ICFG NO_24.c [2023-11-19 04:52:45,103 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:52:45,103 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-19 04:52:45,154 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:52:45,162 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;@41cae9ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:52:45,162 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-19 04:52:45,166 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) [2023-11-19 04:52:45,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-19 04:52:45,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:45,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-19 04:52:45,173 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 04:52:45,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:45,179 INFO L85 PathProgramCache]: Analyzing trace with hash 2084, now seen corresponding path program 1 times [2023-11-19 04:52:45,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:45,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893352007] [2023-11-19 04:52:45,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:45,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:45,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:52:45,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:45,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893352007] [2023-11-19 04:52:45,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893352007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:45,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:45,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 04:52:45,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980349369] [2023-11-19 04:52:45,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:45,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:52:45,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:45,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:52:45,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:52:45,424 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, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-19 04:52:45,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:45,527 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2023-11-19 04:52:45,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:52:45,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-19 04:52:45,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:45,537 INFO L225 Difference]: With dead ends: 30 [2023-11-19 04:52:45,537 INFO L226 Difference]: Without dead ends: 25 [2023-11-19 04:52:45,540 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 [2023-11-19 04:52:45,544 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:45,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 9 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:52:45,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-19 04:52:45,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 19. [2023-11-19 04:52:45,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 18 states have internal predecessors, (19), 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) [2023-11-19 04:52:45,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2023-11-19 04:52:45,575 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 2 [2023-11-19 04:52:45,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:45,575 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2023-11-19 04:52:45,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-19 04:52:45,576 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2023-11-19 04:52:45,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 04:52:45,576 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:45,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 04:52:45,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:52:45,577 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 04:52:45,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:45,578 INFO L85 PathProgramCache]: Analyzing trace with hash 64644, now seen corresponding path program 1 times [2023-11-19 04:52:45,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:45,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907813723] [2023-11-19 04:52:45,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:45,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:45,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:52:45,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:45,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907813723] [2023-11-19 04:52:45,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907813723] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:45,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:45,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 04:52:45,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963723963] [2023-11-19 04:52:45,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:45,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:52:45,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:45,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:52:45,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:52:45,613 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-19 04:52:45,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:45,652 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2023-11-19 04:52:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:52:45,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2023-11-19 04:52:45,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:45,654 INFO L225 Difference]: With dead ends: 26 [2023-11-19 04:52:45,654 INFO L226 Difference]: Without dead ends: 25 [2023-11-19 04:52:45,654 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 [2023-11-19 04:52:45,656 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:45,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 10 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:52:45,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-19 04:52:45,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2023-11-19 04:52:45,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 19 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:45,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2023-11-19 04:52:45,662 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 3 [2023-11-19 04:52:45,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:45,663 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2023-11-19 04:52:45,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-19 04:52:45,663 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2023-11-19 04:52:45,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:52:45,664 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:45,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 04:52:45,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:52:45,664 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)] === [2023-11-19 04:52:45,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:45,665 INFO L85 PathProgramCache]: Analyzing trace with hash 62124326, now seen corresponding path program 1 times [2023-11-19 04:52:45,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:45,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059372027] [2023-11-19 04:52:45,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:45,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:45,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:52:45,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:45,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059372027] [2023-11-19 04:52:45,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059372027] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:45,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:45,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 04:52:45,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542147882] [2023-11-19 04:52:45,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:45,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:52:45,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:45,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:52:45,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:52:45,725 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:45,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:45,776 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2023-11-19 04:52:45,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:52:45,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-19 04:52:45,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:45,778 INFO L225 Difference]: With dead ends: 24 [2023-11-19 04:52:45,778 INFO L226 Difference]: Without dead ends: 23 [2023-11-19 04:52:45,778 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 [2023-11-19 04:52:45,780 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:45,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:52:45,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-19 04:52:45,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2023-11-19 04:52:45,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 21 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:45,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2023-11-19 04:52:45,786 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 5 [2023-11-19 04:52:45,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:45,787 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2023-11-19 04:52:45,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:45,787 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2023-11-19 04:52:45,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:52:45,788 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:45,788 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 04:52:45,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:52:45,788 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)] === [2023-11-19 04:52:45,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:45,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1925854155, now seen corresponding path program 1 times [2023-11-19 04:52:45,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:45,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632551373] [2023-11-19 04:52:45,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:45,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:45,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:52:45,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:45,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632551373] [2023-11-19 04:52:45,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632551373] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:45,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:45,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 04:52:45,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116671050] [2023-11-19 04:52:45,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:45,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:52:45,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:45,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:52:45,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:52:45,872 INFO L87 Difference]: Start difference. First operand 22 states and 22 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) [2023-11-19 04:52:45,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:45,906 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2023-11-19 04:52:45,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:52:45,907 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 [2023-11-19 04:52:45,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:45,908 INFO L225 Difference]: With dead ends: 24 [2023-11-19 04:52:45,908 INFO L226 Difference]: Without dead ends: 23 [2023-11-19 04:52:45,909 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 [2023-11-19 04:52:45,910 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:45,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:52:45,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-19 04:52:45,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-11-19 04:52:45,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 22 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) [2023-11-19 04:52:45,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2023-11-19 04:52:45,917 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 6 [2023-11-19 04:52:45,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:45,917 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2023-11-19 04:52:45,918 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) [2023-11-19 04:52:45,918 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2023-11-19 04:52:45,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:52:45,918 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:45,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:52:45,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:52:45,919 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)] === [2023-11-19 04:52:45,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:45,920 INFO L85 PathProgramCache]: Analyzing trace with hash -428063288, now seen corresponding path program 1 times [2023-11-19 04:52:45,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:45,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981133303] [2023-11-19 04:52:45,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:45,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:46,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:52:46,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:46,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981133303] [2023-11-19 04:52:46,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981133303] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:46,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:46,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:52:46,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059328923] [2023-11-19 04:52:46,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:46,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:52:46,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:46,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:52:46,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:52:46,027 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:46,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:46,103 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2023-11-19 04:52:46,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:52:46,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 04:52:46,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:46,104 INFO L225 Difference]: With dead ends: 26 [2023-11-19 04:52:46,105 INFO L226 Difference]: Without dead ends: 25 [2023-11-19 04:52:46,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:52:46,107 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:46,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 9 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:52:46,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-19 04:52:46,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2023-11-19 04:52:46,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.5) internal successors, (24), 23 states have internal predecessors, (24), 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) [2023-11-19 04:52:46,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2023-11-19 04:52:46,125 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 7 [2023-11-19 04:52:46,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:46,126 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2023-11-19 04:52:46,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:46,126 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2023-11-19 04:52:46,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 04:52:46,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:46,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:52:46,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 04:52:46,127 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 04:52:46,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:46,129 INFO L85 PathProgramCache]: Analyzing trace with hash -385059987, now seen corresponding path program 1 times [2023-11-19 04:52:46,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:46,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669693652] [2023-11-19 04:52:46,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:46,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:46,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:52:46,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:46,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669693652] [2023-11-19 04:52:46,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669693652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:46,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:46,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:52:46,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268836829] [2023-11-19 04:52:46,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:46,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:52:46,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:46,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:52:46,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:52:46,217 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:46,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:46,258 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2023-11-19 04:52:46,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:52:46,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 04:52:46,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:46,259 INFO L225 Difference]: With dead ends: 26 [2023-11-19 04:52:46,259 INFO L226 Difference]: Without dead ends: 25 [2023-11-19 04:52:46,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:52:46,261 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:46,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:52:46,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-19 04:52:46,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-11-19 04:52:46,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 24 states have internal predecessors, (25), 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) [2023-11-19 04:52:46,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2023-11-19 04:52:46,267 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 8 [2023-11-19 04:52:46,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:46,267 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2023-11-19 04:52:46,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:46,267 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2023-11-19 04:52:46,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:52:46,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:46,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:52:46,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 04:52:46,268 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 04:52:46,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:46,269 INFO L85 PathProgramCache]: Analyzing trace with hash 948042346, now seen corresponding path program 1 times [2023-11-19 04:52:46,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:46,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551896074] [2023-11-19 04:52:46,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:46,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:46,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:52:46,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:46,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551896074] [2023-11-19 04:52:46,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551896074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:46,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:46,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:52:46,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240055272] [2023-11-19 04:52:46,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:46,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:52:46,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:46,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:52:46,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:52:46,334 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:46,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:46,399 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2023-11-19 04:52:46,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:52:46,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 04:52:46,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:46,402 INFO L225 Difference]: With dead ends: 28 [2023-11-19 04:52:46,402 INFO L226 Difference]: Without dead ends: 27 [2023-11-19 04:52:46,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:52:46,404 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:46,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:52:46,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-11-19 04:52:46,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2023-11-19 04:52:46,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 25 states have internal predecessors, (26), 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) [2023-11-19 04:52:46,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2023-11-19 04:52:46,410 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 9 [2023-11-19 04:52:46,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:46,411 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2023-11-19 04:52:46,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:46,411 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2023-11-19 04:52:46,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 04:52:46,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:46,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:52:46,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 04:52:46,413 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 04:52:46,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:46,413 INFO L85 PathProgramCache]: Analyzing trace with hash -675458289, now seen corresponding path program 1 times [2023-11-19 04:52:46,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:46,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796289889] [2023-11-19 04:52:46,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:46,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:46,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:46,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:52:46,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:46,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796289889] [2023-11-19 04:52:46,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796289889] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:46,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:46,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:52:46,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927620263] [2023-11-19 04:52:46,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:46,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:52:46,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:46,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:52:46,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:52:46,465 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:46,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:46,521 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2023-11-19 04:52:46,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:52:46,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-19 04:52:46,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:46,522 INFO L225 Difference]: With dead ends: 28 [2023-11-19 04:52:46,522 INFO L226 Difference]: Without dead ends: 27 [2023-11-19 04:52:46,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:52:46,524 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:46,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 8 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:52:46,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-11-19 04:52:46,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-11-19 04:52:46,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 26 states have internal predecessors, (27), 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) [2023-11-19 04:52:46,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2023-11-19 04:52:46,529 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 10 [2023-11-19 04:52:46,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:46,530 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2023-11-19 04:52:46,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:52:46,530 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2023-11-19 04:52:46,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:52:46,531 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:46,531 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:52:46,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 04:52:46,531 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 04:52:46,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:46,532 INFO L85 PathProgramCache]: Analyzing trace with hash 535629559, now seen corresponding path program 1 times [2023-11-19 04:52:46,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:46,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573965251] [2023-11-19 04:52:46,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:46,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:46,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:46,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 04:52:46,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:46,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573965251] [2023-11-19 04:52:46,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573965251] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:46,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:46,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:52:46,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374074989] [2023-11-19 04:52:46,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:46,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:52:46,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:46,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:52:46,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:52:46,602 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-11-19 04:52:46,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:46,715 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2023-11-19 04:52:46,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 04:52:46,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 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 [2023-11-19 04:52:46,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:46,718 INFO L225 Difference]: With dead ends: 27 [2023-11-19 04:52:46,721 INFO L226 Difference]: Without dead ends: 26 [2023-11-19 04:52:46,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:52:46,724 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:46,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 0 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:52:46,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-11-19 04:52:46,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-11-19 04:52:46,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.368421052631579) internal successors, (26), 25 states have internal predecessors, (26), 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) [2023-11-19 04:52:46,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2023-11-19 04:52:46,740 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 11 [2023-11-19 04:52:46,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:46,741 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2023-11-19 04:52:46,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-11-19 04:52:46,741 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2023-11-19 04:52:46,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:52:46,742 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:46,742 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:52:46,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 04:52:46,742 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 04:52:46,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:46,743 INFO L85 PathProgramCache]: Analyzing trace with hash -575352815, now seen corresponding path program 1 times [2023-11-19 04:52:46,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:46,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045440209] [2023-11-19 04:52:46,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:46,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:46,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 04:52:46,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:46,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045440209] [2023-11-19 04:52:46,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045440209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:46,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:46,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:52:46,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626839514] [2023-11-19 04:52:46,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:46,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:52:46,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:46,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:52:46,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:52:46,844 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-11-19 04:52:46,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:46,932 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2023-11-19 04:52:46,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 04:52:46,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 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 12 [2023-11-19 04:52:46,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:46,934 INFO L225 Difference]: With dead ends: 26 [2023-11-19 04:52:46,934 INFO L226 Difference]: Without dead ends: 25 [2023-11-19 04:52:46,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:52:46,935 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:46,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:52:46,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-19 04:52:46,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-11-19 04:52:46,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 24 states have internal predecessors, (25), 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) [2023-11-19 04:52:46,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2023-11-19 04:52:46,943 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 12 [2023-11-19 04:52:46,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:46,944 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2023-11-19 04:52:46,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-11-19 04:52:46,944 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2023-11-19 04:52:46,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 04:52:46,944 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:46,944 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:52:46,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 04:52:46,945 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 04:52:46,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:46,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1136727411, now seen corresponding path program 1 times [2023-11-19 04:52:46,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:46,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773398519] [2023-11-19 04:52:46,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:46,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:47,032 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:52:47,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:47,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773398519] [2023-11-19 04:52:47,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773398519] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:52:47,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232545089] [2023-11-19 04:52:47,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:47,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:52:47,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:52:47,041 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:52:47,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:52:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:47,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 04:52:47,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:52:47,203 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:52:47,203 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:52:47,273 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:52:47,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232545089] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:52:47,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [754876129] [2023-11-19 04:52:47,293 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2023-11-19 04:52:47,293 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 04:52:47,298 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 04:52:47,304 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 04:52:47,305 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 04:52:47,661 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 04:52:47,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [754876129] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:47,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-19 04:52:47,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 3, 3] total 11 [2023-11-19 04:52:47,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985029131] [2023-11-19 04:52:47,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:47,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:52:47,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:47,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:52:47,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-19 04:52:47,850 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2023-11-19 04:52:47,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:47,924 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2023-11-19 04:52:47,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:52:47,925 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 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 14 [2023-11-19 04:52:47,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:47,925 INFO L225 Difference]: With dead ends: 25 [2023-11-19 04:52:47,925 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 04:52:47,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2023-11-19 04:52:47,926 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:47,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:52:47,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 04:52:47,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 04:52:47,927 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) [2023-11-19 04:52:47,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 04:52:47,928 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2023-11-19 04:52:47,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:47,928 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 04:52:47,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2023-11-19 04:52:47,928 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 04:52:47,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:52:47,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-19 04:52:47,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-19 04:52:47,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-19 04:52:47,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-19 04:52:47,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-19 04:52:47,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-19 04:52:47,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-19 04:52:47,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-19 04:52:47,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:52:48,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-19 04:52:48,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 04:52:48,188 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2023-11-19 04:52:48,188 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 04:52:48,188 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2023-11-19 04:52:48,188 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2023-11-19 04:52:48,188 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2023-11-19 04:52:48,189 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2023-11-19 04:52:48,189 INFO L899 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2023-11-19 04:52:48,189 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 04:52:48,189 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 11 15) no Hoare annotation was computed. [2023-11-19 04:52:48,189 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2023-11-19 04:52:48,189 INFO L895 garLoopResultBuilder]: At program point L11-4(lines 11 15) the Hoare annotation is: (or (and (= 2 |ULTIMATE.start_main_~a~0#1|) (= 3 (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|))) (and (= |ULTIMATE.start_main_~a~0#1| 1) (= 2 |ULTIMATE.start_main_~b~0#1|))) [2023-11-19 04:52:48,190 INFO L899 garLoopResultBuilder]: For program point L11-5(lines 11 15) no Hoare annotation was computed. [2023-11-19 04:52:48,190 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2023-11-19 04:52:48,190 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2023-11-19 04:52:48,190 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2023-11-19 04:52:48,190 INFO L899 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed. [2023-11-19 04:52:48,190 INFO L899 garLoopResultBuilder]: For program point L14-1(line 14) no Hoare annotation was computed. [2023-11-19 04:52:48,190 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-11-19 04:52:48,190 INFO L899 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2023-11-19 04:52:48,191 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2023-11-19 04:52:48,194 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:52:48,196 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:52:48,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:52:48 BoogieIcfgContainer [2023-11-19 04:52:48,208 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:52:48,209 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:52:48,209 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:52:48,209 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:52:48,209 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:52:45" (3/4) ... [2023-11-19 04:52:48,211 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:52:48,219 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 04:52:48,219 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 04:52:48,219 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 04:52:48,309 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:52:48,309 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 04:52:48,309 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:52:48,310 INFO L158 Benchmark]: Toolchain (without parser) took 3779.43ms. Allocated memory is still 146.8MB. Free memory was 110.2MB in the beginning and 89.5MB in the end (delta: 20.7MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2023-11-19 04:52:48,310 INFO L158 Benchmark]: CDTParser took 2.06ms. Allocated memory is still 107.0MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:52:48,311 INFO L158 Benchmark]: CACSL2BoogieTranslator took 197.78ms. Allocated memory is still 146.8MB. Free memory was 109.8MB in the beginning and 100.6MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:52:48,311 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.55ms. Allocated memory is still 146.8MB. Free memory was 100.6MB in the beginning and 99.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:52:48,312 INFO L158 Benchmark]: Boogie Preprocessor took 14.52ms. Allocated memory is still 146.8MB. Free memory was 99.4MB in the beginning and 98.5MB in the end (delta: 909.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:52:48,312 INFO L158 Benchmark]: RCFGBuilder took 300.09ms. Allocated memory is still 146.8MB. Free memory was 98.5MB in the beginning and 88.9MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 04:52:48,313 INFO L158 Benchmark]: TraceAbstraction took 3132.09ms. Allocated memory is still 146.8MB. Free memory was 88.0MB in the beginning and 93.7MB in the end (delta: -5.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:52:48,313 INFO L158 Benchmark]: Witness Printer took 100.65ms. Allocated memory is still 146.8MB. Free memory was 93.7MB in the beginning and 89.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:52:48,318 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.06ms. Allocated memory is still 107.0MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 197.78ms. Allocated memory is still 146.8MB. Free memory was 109.8MB in the beginning and 100.6MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.55ms. Allocated memory is still 146.8MB. Free memory was 100.6MB in the beginning and 99.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.52ms. Allocated memory is still 146.8MB. Free memory was 99.4MB in the beginning and 98.5MB in the end (delta: 909.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 300.09ms. Allocated memory is still 146.8MB. Free memory was 98.5MB in the beginning and 88.9MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3132.09ms. Allocated memory is still 146.8MB. Free memory was 88.0MB in the beginning and 93.7MB in the end (delta: -5.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 100.65ms. Allocated memory is still 146.8MB. Free memory was 93.7MB in the beginning and 89.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: 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: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 76 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 378 IncrementalHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 76 mSDtfsCounter, 378 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 29 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=8, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 14 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 17 HoareAnnotationTreeSize, 1 FomulaSimplifications, 61 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 480 SizeOfPredicates, 1 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 3/15 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: OVERALL_TIME: 0.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 12, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 31, TOOLS_POST_TIME: 0.2s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 31, TOOLS_QUANTIFIERELIM_TIME: 0.2s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 48, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 12, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.2s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.2s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 123, DAG_COMPRESSION_RETAINED_NODES: 39, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((2 == a) && (3 == (a + b))) || ((a == 1) && (2 == b))) RESULT: Ultimate proved your program to be correct! [2023-11-19 04:52:48,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf07460-36a3-455a-8df5-aabd82f85628/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE