/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-write.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:26:12,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:26:12,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:26:13,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:26:13,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:26:13,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:26:13,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:26:13,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:26:13,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:26:13,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:26:13,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:26:13,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:26:13,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:26:13,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:26:13,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:26:13,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:26:13,028 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:26:13,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:26:13,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:26:13,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:26:13,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:26:13,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:26:13,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:26:13,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:26:13,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 21:26:13,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:26:13,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:26:13,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:26:13,059 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:26:13,095 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:26:13,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:26:13,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:26:13,096 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:26:13,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:26:13,098 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:26:13,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:26:13,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:26:13,099 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:26:13,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:26:13,100 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:26:13,100 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:26:13,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:26:13,101 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:26:13,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:26:13,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:26:13,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:26:13,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:26:13,102 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:26:13,103 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:26:13,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:26:13,103 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:26:13,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:26:13,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:26:13,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:26:13,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:26:13,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:26:13,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:26:13,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:26:13,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:26:13,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:26:13,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:26:13,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:26:13,107 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:26:13,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:26:13,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:26:13,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:26:13,513 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:26:13,513 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:26:13,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-write.c [2022-10-15 21:26:13,604 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5823f44a8/f714b7c8dda54e1a8affb9b8ffd0fcb7/FLAGccf96f591 [2022-10-15 21:26:14,217 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:26:14,218 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-write.c [2022-10-15 21:26:14,226 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5823f44a8/f714b7c8dda54e1a8affb9b8ffd0fcb7/FLAGccf96f591 [2022-10-15 21:26:14,604 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5823f44a8/f714b7c8dda54e1a8affb9b8ffd0fcb7 [2022-10-15 21:26:14,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:26:14,619 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:26:14,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:26:14,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:26:14,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:26:14,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:26:14" (1/1) ... [2022-10-15 21:26:14,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28262f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:14, skipping insertion in model container [2022-10-15 21:26:14,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:26:14" (1/1) ... [2022-10-15 21:26:14,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:26:14,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:26:14,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:26:14,936 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:26:14,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:26:14,985 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:26:14,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:14 WrapperNode [2022-10-15 21:26:14,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:26:14,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:26:14,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:26:14,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:26:15,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:14" (1/1) ... [2022-10-15 21:26:15,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:14" (1/1) ... [2022-10-15 21:26:15,046 INFO L138 Inliner]: procedures = 8, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-10-15 21:26:15,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:26:15,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:26:15,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:26:15,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:26:15,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:14" (1/1) ... [2022-10-15 21:26:15,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:14" (1/1) ... [2022-10-15 21:26:15,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:14" (1/1) ... [2022-10-15 21:26:15,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:14" (1/1) ... [2022-10-15 21:26:15,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:14" (1/1) ... [2022-10-15 21:26:15,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:14" (1/1) ... [2022-10-15 21:26:15,077 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:14" (1/1) ... [2022-10-15 21:26:15,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:14" (1/1) ... [2022-10-15 21:26:15,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:26:15,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:26:15,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:26:15,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:26:15,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:14" (1/1) ... [2022-10-15 21:26:15,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:26:15,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:15,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:26:15,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:26:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:26:15,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:26:15,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:26:15,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:26:15,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:26:15,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:26:15,264 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:26:15,266 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:26:15,505 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:26:15,524 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:26:15,524 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-15 21:26:15,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:26:15 BoogieIcfgContainer [2022-10-15 21:26:15,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:26:15,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:26:15,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:26:15,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:26:15,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:26:14" (1/3) ... [2022-10-15 21:26:15,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bdbf1f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:26:15, skipping insertion in model container [2022-10-15 21:26:15,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:26:14" (2/3) ... [2022-10-15 21:26:15,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bdbf1f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:26:15, skipping insertion in model container [2022-10-15 21:26:15,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:26:15" (3/3) ... [2022-10-15 21:26:15,542 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_-write.c [2022-10-15 21:26:15,569 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:26:15,569 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-15 21:26:15,639 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:26:15,650 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=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@66d867ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:26:15,650 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-15 21:26:15,656 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 36 states have internal predecessors, (43), 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) [2022-10-15 21:26:15,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 21:26:15,664 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:15,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 21:26:15,666 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:26:15,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:15,674 INFO L85 PathProgramCache]: Analyzing trace with hash 925764, now seen corresponding path program 1 times [2022-10-15 21:26:15,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:15,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573840410] [2022-10-15 21:26:15,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:15,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:15,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:26:15,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:15,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573840410] [2022-10-15 21:26:15,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573840410] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:26:15,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:26:15,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:26:15,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680178346] [2022-10-15 21:26:15,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:26:15,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:26:15,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:15,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:26:15,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:26:15,970 INFO L87 Difference]: Start difference. First operand has 37 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 36 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:26:16,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:16,073 INFO L93 Difference]: Finished difference Result 101 states and 123 transitions. [2022-10-15 21:26:16,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:26:16,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-10-15 21:26:16,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:16,088 INFO L225 Difference]: With dead ends: 101 [2022-10-15 21:26:16,089 INFO L226 Difference]: Without dead ends: 57 [2022-10-15 21:26:16,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:26:16,098 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 27 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:16,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 48 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:26:16,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-10-15 21:26:16,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 38. [2022-10-15 21:26:16,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 37 states have internal predecessors, (40), 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) [2022-10-15 21:26:16,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2022-10-15 21:26:16,148 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 4 [2022-10-15 21:26:16,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:16,149 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2022-10-15 21:26:16,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:26:16,150 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2022-10-15 21:26:16,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-15 21:26:16,150 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:16,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:16,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:26:16,152 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:26:16,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:16,153 INFO L85 PathProgramCache]: Analyzing trace with hash 265365646, now seen corresponding path program 1 times [2022-10-15 21:26:16,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:16,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505102306] [2022-10-15 21:26:16,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:16,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:16,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:26:16,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:16,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505102306] [2022-10-15 21:26:16,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505102306] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:26:16,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:26:16,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:26:16,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630707107] [2022-10-15 21:26:16,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:26:16,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:26:16,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:16,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:26:16,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:26:16,336 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:26:16,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:16,397 INFO L93 Difference]: Finished difference Result 71 states and 75 transitions. [2022-10-15 21:26:16,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:26:16,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-15 21:26:16,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:16,401 INFO L225 Difference]: With dead ends: 71 [2022-10-15 21:26:16,401 INFO L226 Difference]: Without dead ends: 69 [2022-10-15 21:26:16,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:26:16,409 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 28 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:16,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 86 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:26:16,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-10-15 21:26:16,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 42. [2022-10-15 21:26:16,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 32 states have (on average 1.40625) internal successors, (45), 41 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:26:16,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2022-10-15 21:26:16,433 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 8 [2022-10-15 21:26:16,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:16,434 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2022-10-15 21:26:16,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:26:16,434 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2022-10-15 21:26:16,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 21:26:16,437 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:16,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:16,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:26:16,439 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:26:16,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:16,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1611716430, now seen corresponding path program 1 times [2022-10-15 21:26:16,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:16,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981178108] [2022-10-15 21:26:16,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:16,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:16,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:26:16,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:16,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981178108] [2022-10-15 21:26:16,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981178108] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:26:16,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:26:16,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:26:16,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636035965] [2022-10-15 21:26:16,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:26:16,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:26:16,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:16,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:26:16,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:26:16,574 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2022-10-15 21:26:16,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:16,702 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2022-10-15 21:26:16,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:26:16,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 [2022-10-15 21:26:16,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:16,704 INFO L225 Difference]: With dead ends: 65 [2022-10-15 21:26:16,704 INFO L226 Difference]: Without dead ends: 63 [2022-10-15 21:26:16,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:26:16,707 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 17 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:16,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 56 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:26:16,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-10-15 21:26:16,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 55. [2022-10-15 21:26:16,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 45 states have (on average 1.3777777777777778) internal successors, (62), 54 states have internal predecessors, (62), 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) [2022-10-15 21:26:16,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2022-10-15 21:26:16,723 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 10 [2022-10-15 21:26:16,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:16,724 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2022-10-15 21:26:16,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2022-10-15 21:26:16,724 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2022-10-15 21:26:16,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-15 21:26:16,725 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:16,725 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:16,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:26:16,726 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:26:16,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:16,727 INFO L85 PathProgramCache]: Analyzing trace with hash -85370614, now seen corresponding path program 1 times [2022-10-15 21:26:16,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:16,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015731029] [2022-10-15 21:26:16,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:16,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:16,853 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:26:16,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:16,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015731029] [2022-10-15 21:26:16,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015731029] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:26:16,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363423299] [2022-10-15 21:26:16,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:16,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:16,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:16,863 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:26:16,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:26:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:16,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-15 21:26:16,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:26:17,098 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:26:17,099 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:26:17,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363423299] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:26:17,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:26:17,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2022-10-15 21:26:17,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564858837] [2022-10-15 21:26:17,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:26:17,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:26:17,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:17,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:26:17,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:26:17,102 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:26:17,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:17,279 INFO L93 Difference]: Finished difference Result 161 states and 174 transitions. [2022-10-15 21:26:17,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 21:26:17,279 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-15 21:26:17,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:17,281 INFO L225 Difference]: With dead ends: 161 [2022-10-15 21:26:17,281 INFO L226 Difference]: Without dead ends: 115 [2022-10-15 21:26:17,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-10-15 21:26:17,284 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 91 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:17,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 127 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:26:17,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-10-15 21:26:17,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 52. [2022-10-15 21:26:17,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 51 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:26:17,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2022-10-15 21:26:17,294 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 12 [2022-10-15 21:26:17,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:17,294 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2022-10-15 21:26:17,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:26:17,294 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2022-10-15 21:26:17,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-15 21:26:17,295 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:17,295 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:17,332 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-15 21:26:17,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:17,512 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:26:17,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:17,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1204832698, now seen corresponding path program 1 times [2022-10-15 21:26:17,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:17,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943895466] [2022-10-15 21:26:17,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:17,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:17,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:26:17,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:17,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943895466] [2022-10-15 21:26:17,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943895466] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:26:17,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:26:17,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:26:17,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322758632] [2022-10-15 21:26:17,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:26:17,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:26:17,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:17,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:26:17,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:26:17,591 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:26:17,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:17,618 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2022-10-15 21:26:17,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:26:17,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-15 21:26:17,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:17,621 INFO L225 Difference]: With dead ends: 52 [2022-10-15 21:26:17,621 INFO L226 Difference]: Without dead ends: 50 [2022-10-15 21:26:17,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:26:17,626 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 25 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:17,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 21 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:26:17,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-15 21:26:17,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-10-15 21:26:17,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 49 states have internal predecessors, (54), 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) [2022-10-15 21:26:17,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2022-10-15 21:26:17,653 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 13 [2022-10-15 21:26:17,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:17,653 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2022-10-15 21:26:17,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:26:17,656 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2022-10-15 21:26:17,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-15 21:26:17,657 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:17,657 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:17,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 21:26:17,658 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:26:17,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:17,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1304891982, now seen corresponding path program 1 times [2022-10-15 21:26:17,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:17,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132732425] [2022-10-15 21:26:17,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:17,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:17,756 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:26:17,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:17,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132732425] [2022-10-15 21:26:17,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132732425] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:26:17,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432450661] [2022-10-15 21:26:17,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:17,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:17,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:17,759 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:26:17,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 21:26:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:17,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 21:26:17,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:26:17,847 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:26:17,848 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:26:17,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432450661] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:26:17,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:26:17,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-10-15 21:26:17,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097112557] [2022-10-15 21:26:17,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:26:17,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:26:17,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:17,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:26:17,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:26:17,850 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-10-15 21:26:17,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:17,914 INFO L93 Difference]: Finished difference Result 96 states and 103 transitions. [2022-10-15 21:26:17,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:26:17,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 [2022-10-15 21:26:17,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:17,916 INFO L225 Difference]: With dead ends: 96 [2022-10-15 21:26:17,916 INFO L226 Difference]: Without dead ends: 56 [2022-10-15 21:26:17,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:26:17,918 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 21 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 52 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 [2022-10-15 21:26:17,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 52 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:26:17,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-10-15 21:26:17,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2022-10-15 21:26:17,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 49 states have internal predecessors, (53), 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) [2022-10-15 21:26:17,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2022-10-15 21:26:17,925 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 14 [2022-10-15 21:26:17,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:17,925 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2022-10-15 21:26:17,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-10-15 21:26:17,926 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2022-10-15 21:26:17,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-15 21:26:17,926 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:17,927 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:17,956 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-15 21:26:18,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-15 21:26:18,141 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:26:18,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:18,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1242443474, now seen corresponding path program 1 times [2022-10-15 21:26:18,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:18,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962453781] [2022-10-15 21:26:18,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:18,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:18,304 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:26:18,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:18,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962453781] [2022-10-15 21:26:18,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962453781] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:26:18,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674146533] [2022-10-15 21:26:18,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:18,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:18,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:18,306 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:26:18,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 21:26:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:18,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:26:18,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:26:18,391 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:26:18,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:26:18,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674146533] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:26:18,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:26:18,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-15 21:26:18,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577829325] [2022-10-15 21:26:18,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:26:18,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:26:18,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:18,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:26:18,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:26:18,395 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-10-15 21:26:18,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:18,422 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2022-10-15 21:26:18,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:26:18,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2022-10-15 21:26:18,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:18,424 INFO L225 Difference]: With dead ends: 50 [2022-10-15 21:26:18,424 INFO L226 Difference]: Without dead ends: 48 [2022-10-15 21:26:18,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:26:18,429 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 23 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:18,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 20 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:26:18,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-10-15 21:26:18,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 45. [2022-10-15 21:26:18,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 44 states have internal predecessors, (48), 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) [2022-10-15 21:26:18,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2022-10-15 21:26:18,441 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 18 [2022-10-15 21:26:18,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:18,442 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2022-10-15 21:26:18,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-10-15 21:26:18,442 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2022-10-15 21:26:18,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 21:26:18,444 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:18,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:18,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 21:26:18,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:18,659 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:26:18,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:18,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1588406475, now seen corresponding path program 1 times [2022-10-15 21:26:18,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:18,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993229552] [2022-10-15 21:26:18,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:18,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:18,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:26:18,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:18,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993229552] [2022-10-15 21:26:18,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993229552] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:26:18,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049825893] [2022-10-15 21:26:18,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:18,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:18,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:18,747 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:26:18,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 21:26:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:18,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 21:26:18,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:26:18,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:26:18,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:26:18,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:26:18,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049825893] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:26:18,904 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:26:18,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-15 21:26:18,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75030518] [2022-10-15 21:26:18,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:26:18,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-15 21:26:18,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:18,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-15 21:26:18,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:26:18,907 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 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) [2022-10-15 21:26:19,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:19,034 INFO L93 Difference]: Finished difference Result 85 states and 92 transitions. [2022-10-15 21:26:19,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 21:26:19,034 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-15 21:26:19,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:19,035 INFO L225 Difference]: With dead ends: 85 [2022-10-15 21:26:19,035 INFO L226 Difference]: Without dead ends: 74 [2022-10-15 21:26:19,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-10-15 21:26:19,037 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 84 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:19,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 74 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:26:19,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-10-15 21:26:19,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 62. [2022-10-15 21:26:19,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 56 states have (on average 1.25) internal successors, (70), 61 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:26:19,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2022-10-15 21:26:19,047 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 23 [2022-10-15 21:26:19,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:19,048 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2022-10-15 21:26:19,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 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) [2022-10-15 21:26:19,048 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2022-10-15 21:26:19,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 21:26:19,049 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:19,049 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:19,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 21:26:19,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:19,266 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:26:19,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:19,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1916154114, now seen corresponding path program 1 times [2022-10-15 21:26:19,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:19,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268487784] [2022-10-15 21:26:19,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:19,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:19,335 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:26:19,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:19,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268487784] [2022-10-15 21:26:19,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268487784] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:26:19,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:26:19,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:26:19,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714246937] [2022-10-15 21:26:19,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:26:19,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:26:19,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:19,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:26:19,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:26:19,338 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 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) [2022-10-15 21:26:19,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:19,388 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2022-10-15 21:26:19,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:26:19,388 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 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) Word has length 24 [2022-10-15 21:26:19,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:19,389 INFO L225 Difference]: With dead ends: 62 [2022-10-15 21:26:19,389 INFO L226 Difference]: Without dead ends: 61 [2022-10-15 21:26:19,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:26:19,394 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 21 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:19,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 30 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:26:19,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-15 21:26:19,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-10-15 21:26:19,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 60 states have internal predecessors, (68), 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) [2022-10-15 21:26:19,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2022-10-15 21:26:19,409 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 24 [2022-10-15 21:26:19,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:19,409 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2022-10-15 21:26:19,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 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) [2022-10-15 21:26:19,410 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2022-10-15 21:26:19,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-15 21:26:19,413 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:19,413 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:19,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 21:26:19,414 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:26:19,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:19,414 INFO L85 PathProgramCache]: Analyzing trace with hash -2027870844, now seen corresponding path program 1 times [2022-10-15 21:26:19,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:19,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995711812] [2022-10-15 21:26:19,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:19,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:19,535 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:26:19,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:19,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995711812] [2022-10-15 21:26:19,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995711812] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:26:19,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315162189] [2022-10-15 21:26:19,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:19,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:19,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:19,538 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:26:19,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 21:26:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:19,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 21:26:19,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:26:19,638 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:26:19,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:26:19,691 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:26:19,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315162189] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:26:19,691 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:26:19,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-15 21:26:19,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287044885] [2022-10-15 21:26:19,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:26:19,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-15 21:26:19,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:19,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-15 21:26:19,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-15 21:26:19,695 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 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) [2022-10-15 21:26:19,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:19,838 INFO L93 Difference]: Finished difference Result 189 states and 214 transitions. [2022-10-15 21:26:19,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 21:26:19,838 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 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 25 [2022-10-15 21:26:19,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:19,843 INFO L225 Difference]: With dead ends: 189 [2022-10-15 21:26:19,843 INFO L226 Difference]: Without dead ends: 188 [2022-10-15 21:26:19,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-15 21:26:19,844 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 199 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:19,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 154 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:26:19,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-10-15 21:26:19,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 83. [2022-10-15 21:26:19,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 78 states have (on average 1.2820512820512822) internal successors, (100), 82 states have internal predecessors, (100), 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) [2022-10-15 21:26:19,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 100 transitions. [2022-10-15 21:26:19,873 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 100 transitions. Word has length 25 [2022-10-15 21:26:19,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:19,875 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 100 transitions. [2022-10-15 21:26:19,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 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) [2022-10-15 21:26:19,876 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 100 transitions. [2022-10-15 21:26:19,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-15 21:26:19,878 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:19,879 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:19,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 21:26:20,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-15 21:26:20,097 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:26:20,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:20,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1560513334, now seen corresponding path program 1 times [2022-10-15 21:26:20,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:20,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167711254] [2022-10-15 21:26:20,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:20,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:20,214 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:26:20,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:20,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167711254] [2022-10-15 21:26:20,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167711254] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:26:20,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718922521] [2022-10-15 21:26:20,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:20,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:20,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:20,216 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:26:20,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 21:26:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:20,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 21:26:20,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:26:20,308 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:26:20,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:26:20,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718922521] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:26:20,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:26:20,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-15 21:26:20,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942590566] [2022-10-15 21:26:20,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:26:20,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:26:20,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:20,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:26:20,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:26:20,313 INFO L87 Difference]: Start difference. First operand 83 states and 100 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 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) [2022-10-15 21:26:20,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:20,376 INFO L93 Difference]: Finished difference Result 108 states and 126 transitions. [2022-10-15 21:26:20,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:26:20,376 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 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) Word has length 26 [2022-10-15 21:26:20,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:20,377 INFO L225 Difference]: With dead ends: 108 [2022-10-15 21:26:20,377 INFO L226 Difference]: Without dead ends: 107 [2022-10-15 21:26:20,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:26:20,379 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 46 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:20,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 130 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:26:20,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-10-15 21:26:20,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 82. [2022-10-15 21:26:20,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 78 states have (on average 1.205128205128205) internal successors, (94), 81 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:26:20,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 94 transitions. [2022-10-15 21:26:20,389 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 94 transitions. Word has length 26 [2022-10-15 21:26:20,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:20,390 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 94 transitions. [2022-10-15 21:26:20,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 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) [2022-10-15 21:26:20,390 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 94 transitions. [2022-10-15 21:26:20,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-15 21:26:20,391 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:20,391 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:20,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 21:26:20,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:20,605 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:26:20,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:20,606 INFO L85 PathProgramCache]: Analyzing trace with hash 417965706, now seen corresponding path program 1 times [2022-10-15 21:26:20,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:20,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461279395] [2022-10-15 21:26:20,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:20,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:20,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:20,665 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-15 21:26:20,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:20,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461279395] [2022-10-15 21:26:20,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461279395] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:26:20,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:26:20,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:26:20,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177255773] [2022-10-15 21:26:20,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:26:20,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:26:20,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:20,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:26:20,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:26:20,668 INFO L87 Difference]: Start difference. First operand 82 states and 94 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 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) [2022-10-15 21:26:20,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:20,718 INFO L93 Difference]: Finished difference Result 83 states and 95 transitions. [2022-10-15 21:26:20,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:26:20,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-10-15 21:26:20,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:20,720 INFO L225 Difference]: With dead ends: 83 [2022-10-15 21:26:20,720 INFO L226 Difference]: Without dead ends: 82 [2022-10-15 21:26:20,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:26:20,721 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:20,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 30 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:26:20,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-10-15 21:26:20,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2022-10-15 21:26:20,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 78 states have (on average 1.1923076923076923) internal successors, (93), 80 states have internal predecessors, (93), 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) [2022-10-15 21:26:20,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 93 transitions. [2022-10-15 21:26:20,732 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 93 transitions. Word has length 32 [2022-10-15 21:26:20,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:20,732 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 93 transitions. [2022-10-15 21:26:20,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 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) [2022-10-15 21:26:20,732 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 93 transitions. [2022-10-15 21:26:20,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-15 21:26:20,734 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:20,734 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:20,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 21:26:20,734 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:26:20,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:20,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1667832824, now seen corresponding path program 2 times [2022-10-15 21:26:20,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:20,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962757669] [2022-10-15 21:26:20,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:20,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:20,887 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-15 21:26:20,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:20,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962757669] [2022-10-15 21:26:20,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962757669] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:26:20,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441019758] [2022-10-15 21:26:20,888 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 21:26:20,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:20,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:26:20,889 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:26:20,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 21:26:20,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-15 21:26:20,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:26:20,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 21:26:20,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:26:21,019 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 26 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-15 21:26:21,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:26:21,100 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 26 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-15 21:26:21,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441019758] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:26:21,101 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:26:21,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 15 [2022-10-15 21:26:21,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479775763] [2022-10-15 21:26:21,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:26:21,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-15 21:26:21,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:21,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-15 21:26:21,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-10-15 21:26:21,103 INFO L87 Difference]: Start difference. First operand 81 states and 93 transitions. Second operand has 16 states, 15 states have (on average 3.933333333333333) internal successors, (59), 16 states have internal predecessors, (59), 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) [2022-10-15 21:26:21,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:21,513 INFO L93 Difference]: Finished difference Result 152 states and 166 transitions. [2022-10-15 21:26:21,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-15 21:26:21,514 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.933333333333333) internal successors, (59), 16 states have internal predecessors, (59), 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 37 [2022-10-15 21:26:21,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:21,515 INFO L225 Difference]: With dead ends: 152 [2022-10-15 21:26:21,515 INFO L226 Difference]: Without dead ends: 151 [2022-10-15 21:26:21,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=363, Invalid=897, Unknown=0, NotChecked=0, Total=1260 [2022-10-15 21:26:21,517 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 475 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:21,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 79 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:26:21,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-10-15 21:26:21,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 50. [2022-10-15 21:26:21,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 48 states have (on average 1.1041666666666667) internal successors, (53), 49 states have internal predecessors, (53), 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) [2022-10-15 21:26:21,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2022-10-15 21:26:21,526 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 37 [2022-10-15 21:26:21,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:21,527 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2022-10-15 21:26:21,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.933333333333333) internal successors, (59), 16 states have internal predecessors, (59), 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) [2022-10-15 21:26:21,527 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2022-10-15 21:26:21,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-15 21:26:21,528 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:21,528 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:21,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 21:26:21,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:26:21,744 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:26:21,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:21,745 INFO L85 PathProgramCache]: Analyzing trace with hash -41037045, now seen corresponding path program 2 times [2022-10-15 21:26:21,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:21,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097837591] [2022-10-15 21:26:21,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:21,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:21,822 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-10-15 21:26:21,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:21,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097837591] [2022-10-15 21:26:21,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097837591] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:26:21,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:26:21,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:26:21,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697771254] [2022-10-15 21:26:21,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:26:21,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:26:21,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:21,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:26:21,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:26:21,825 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 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) [2022-10-15 21:26:21,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:21,870 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2022-10-15 21:26:21,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:26:21,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-10-15 21:26:21,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:21,872 INFO L225 Difference]: With dead ends: 59 [2022-10-15 21:26:21,872 INFO L226 Difference]: Without dead ends: 57 [2022-10-15 21:26:21,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:26:21,873 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 15 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:21,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 36 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:26:21,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-10-15 21:26:21,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-10-15 21:26:21,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 55 states have (on average 1.0909090909090908) internal successors, (60), 56 states have internal predecessors, (60), 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) [2022-10-15 21:26:21,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2022-10-15 21:26:21,882 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 41 [2022-10-15 21:26:21,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:21,883 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2022-10-15 21:26:21,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 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) [2022-10-15 21:26:21,883 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2022-10-15 21:26:21,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-15 21:26:21,884 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:21,884 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:21,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 21:26:21,885 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:26:21,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:21,885 INFO L85 PathProgramCache]: Analyzing trace with hash 775569123, now seen corresponding path program 1 times [2022-10-15 21:26:21,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:21,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053765410] [2022-10-15 21:26:21,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:21,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:21,976 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-15 21:26:21,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:21,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053765410] [2022-10-15 21:26:21,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053765410] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:26:21,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:26:21,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:26:21,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901206728] [2022-10-15 21:26:21,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:26:21,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:26:21,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:21,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:26:21,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:26:21,979 INFO L87 Difference]: Start difference. First operand 57 states and 60 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:26:22,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:22,021 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2022-10-15 21:26:22,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:26:22,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-10-15 21:26:22,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:22,022 INFO L225 Difference]: With dead ends: 57 [2022-10-15 21:26:22,022 INFO L226 Difference]: Without dead ends: 56 [2022-10-15 21:26:22,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:26:22,024 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 17 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:22,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 24 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:26:22,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-10-15 21:26:22,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-10-15 21:26:22,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.0727272727272728) internal successors, (59), 55 states have internal predecessors, (59), 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) [2022-10-15 21:26:22,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2022-10-15 21:26:22,033 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 48 [2022-10-15 21:26:22,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:22,033 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2022-10-15 21:26:22,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:26:22,034 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2022-10-15 21:26:22,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-15 21:26:22,035 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:26:22,035 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:22,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 21:26:22,035 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-15 21:26:22,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:26:22,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1727160864, now seen corresponding path program 1 times [2022-10-15 21:26:22,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:26:22,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256709521] [2022-10-15 21:26:22,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:26:22,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:26:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:26:22,111 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-10-15 21:26:22,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:26:22,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256709521] [2022-10-15 21:26:22,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256709521] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:26:22,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:26:22,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:26:22,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43917675] [2022-10-15 21:26:22,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:26:22,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:26:22,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:26:22,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:26:22,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:26:22,114 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-10-15 21:26:22,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:26:22,150 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2022-10-15 21:26:22,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:26:22,150 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 49 [2022-10-15 21:26:22,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:26:22,151 INFO L225 Difference]: With dead ends: 56 [2022-10-15 21:26:22,151 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 21:26:22,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:26:22,152 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 17 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:26:22,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 22 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:26:22,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 21:26:22,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 21:26:22,154 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) [2022-10-15 21:26:22,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 21:26:22,154 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2022-10-15 21:26:22,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:26:22,154 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 21:26:22,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-10-15 21:26:22,155 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 21:26:22,155 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 21:26:22,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-10-15 21:26:22,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-10-15 21:26:22,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-10-15 21:26:22,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-10-15 21:26:22,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-10-15 21:26:22,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-10-15 21:26:22,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-10-15 21:26:22,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-10-15 21:26:22,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-10-15 21:26:22,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-10-15 21:26:22,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 21:26:22,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-15 21:26:23,494 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2022-10-15 21:26:23,495 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2022-10-15 21:26:23,495 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-10-15 21:26:23,495 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2022-10-15 21:26:23,495 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-10-15 21:26:23,495 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-15 21:26:23,495 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-10-15 21:26:23,495 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-15 21:26:23,496 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-10-15 21:26:23,496 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-15 21:26:23,496 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-10-15 21:26:23,496 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-10-15 21:26:23,496 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-15 21:26:23,496 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-10-15 21:26:23,496 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 25 29) no Hoare annotation was computed. [2022-10-15 21:26:23,497 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2022-10-15 21:26:23,497 INFO L899 garLoopResultBuilder]: For program point L25-4(line 25) no Hoare annotation was computed. [2022-10-15 21:26:23,497 INFO L895 garLoopResultBuilder]: At program point L25-5(lines 25 29) the Hoare annotation is: (and (< |ULTIMATE.start_foo_~i~0#1| 2147483647) (<= |ULTIMATE.start_foo_~size#1| 100) (<= 0 (+ |ULTIMATE.start_main_~i~1#1| 2147483648)) (<= 0 |ULTIMATE.start_foo_~i~0#1|)) [2022-10-15 21:26:23,497 INFO L899 garLoopResultBuilder]: For program point L25-6(lines 25 29) no Hoare annotation was computed. [2022-10-15 21:26:23,498 INFO L895 garLoopResultBuilder]: At program point L17(lines 12 18) the Hoare annotation is: (and (< |ULTIMATE.start_foo_~i~0#1| 2147483647) (<= |ULTIMATE.start_foo_~size#1| 100) (<= 0 (+ |ULTIMATE.start_main_~i~1#1| 2147483648)) (<= |ULTIMATE.start_main_~i~1#1| 99) (<= 0 |ULTIMATE.start_foo_~i~0#1|)) [2022-10-15 21:26:23,498 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-10-15 21:26:23,498 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2022-10-15 21:26:23,498 INFO L902 garLoopResultBuilder]: At program point L30(lines 20 31) the Hoare annotation is: true [2022-10-15 21:26:23,498 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2022-10-15 21:26:23,498 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2022-10-15 21:26:23,498 INFO L899 garLoopResultBuilder]: For program point L26-2(lines 26 28) no Hoare annotation was computed. [2022-10-15 21:26:23,498 INFO L899 garLoopResultBuilder]: For program point L22-2(lines 22 24) no Hoare annotation was computed. [2022-10-15 21:26:23,499 INFO L899 garLoopResultBuilder]: For program point L22-3(line 22) no Hoare annotation was computed. [2022-10-15 21:26:23,499 INFO L899 garLoopResultBuilder]: For program point L22-4(line 22) no Hoare annotation was computed. [2022-10-15 21:26:23,499 INFO L895 garLoopResultBuilder]: At program point L22-5(lines 22 24) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~1#1| 0) (and (< |ULTIMATE.start_foo_~i~0#1| 2147483647) (<= |ULTIMATE.start_foo_~size#1| 100) (<= 0 (+ |ULTIMATE.start_main_~i~1#1| 2147483648)) (<= 0 |ULTIMATE.start_foo_~i~0#1|))) [2022-10-15 21:26:23,499 INFO L899 garLoopResultBuilder]: For program point L22-6(lines 22 24) no Hoare annotation was computed. [2022-10-15 21:26:23,499 INFO L899 garLoopResultBuilder]: For program point L14-2(lines 14 16) no Hoare annotation was computed. [2022-10-15 21:26:23,499 INFO L899 garLoopResultBuilder]: For program point L14-3(line 14) no Hoare annotation was computed. [2022-10-15 21:26:23,499 INFO L899 garLoopResultBuilder]: For program point L14-4(line 14) no Hoare annotation was computed. [2022-10-15 21:26:23,500 INFO L895 garLoopResultBuilder]: At program point L14-5(lines 14 16) the Hoare annotation is: (and (let ((.cse0 (<= |ULTIMATE.start_foo_~size#1| 100)) (.cse1 (<= 0 (+ |ULTIMATE.start_main_~i~1#1| 2147483648)))) (or (and .cse0 .cse1 (= |ULTIMATE.start_foo_~i~0#1| 0)) (and (< |ULTIMATE.start_foo_~i~0#1| 2147483647) .cse0 .cse1 (<= 1 |ULTIMATE.start_foo_~i~0#1|)))) (<= |ULTIMATE.start_main_~i~1#1| 99)) [2022-10-15 21:26:23,500 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-10-15 21:26:23,500 INFO L899 garLoopResultBuilder]: For program point L14-6(lines 14 16) no Hoare annotation was computed. [2022-10-15 21:26:23,504 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:26:23,507 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 21:26:23,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 09:26:23 BoogieIcfgContainer [2022-10-15 21:26:23,526 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 21:26:23,527 INFO L158 Benchmark]: Toolchain (without parser) took 8912.51ms. Allocated memory was 156.2MB in the beginning and 225.4MB in the end (delta: 69.2MB). Free memory was 129.5MB in the beginning and 182.4MB in the end (delta: -52.9MB). Peak memory consumption was 118.8MB. Max. memory is 8.0GB. [2022-10-15 21:26:23,527 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 156.2MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 21:26:23,528 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.14ms. Allocated memory is still 156.2MB. Free memory was 129.3MB in the beginning and 120.1MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-15 21:26:23,528 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.35ms. Allocated memory is still 156.2MB. Free memory was 120.1MB in the beginning and 118.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 21:26:23,528 INFO L158 Benchmark]: Boogie Preprocessor took 29.28ms. Allocated memory is still 156.2MB. Free memory was 118.3MB in the beginning and 117.3MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 21:26:23,529 INFO L158 Benchmark]: RCFGBuilder took 445.26ms. Allocated memory is still 156.2MB. Free memory was 117.3MB in the beginning and 105.7MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-10-15 21:26:23,529 INFO L158 Benchmark]: TraceAbstraction took 7992.84ms. Allocated memory was 156.2MB in the beginning and 225.4MB in the end (delta: 69.2MB). Free memory was 104.9MB in the beginning and 182.4MB in the end (delta: -77.4MB). Peak memory consumption was 94.7MB. Max. memory is 8.0GB. [2022-10-15 21:26:23,531 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 156.2MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 366.14ms. Allocated memory is still 156.2MB. Free memory was 129.3MB in the beginning and 120.1MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.35ms. Allocated memory is still 156.2MB. Free memory was 120.1MB in the beginning and 118.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.28ms. Allocated memory is still 156.2MB. Free memory was 118.3MB in the beginning and 117.3MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 445.26ms. Allocated memory is still 156.2MB. Free memory was 117.3MB in the beginning and 105.7MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 7992.84ms. Allocated memory was 156.2MB in the beginning and 225.4MB in the end (delta: 69.2MB). Free memory was 104.9MB in the beginning and 182.4MB in the end (delta: -77.4MB). Peak memory consumption was 94.7MB. Max. memory is 8.0GB. * 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: 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, 37 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 7.9s, OverallIterations: 16, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1122 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1122 mSDsluCounter, 989 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 649 mSDsCounter, 110 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 786 IncrementalHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 110 mSolverCounterUnsat, 340 mSDtfsCounter, 786 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 344 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=10, InterpolantAutomatonStates: 102, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 370 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 20 NumberOfFragments, 85 HoareAnnotationTreeSize, 5 FomulaSimplifications, 44729 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 5 FomulaSimplificationsInter, 1810 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 539 NumberOfCodeBlocks, 510 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 598 ConstructedInterpolants, 0 QuantifiedInterpolants, 1144 SizeOfPredicates, 19 NumberOfNonLiveVariables, 543 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 26 InterpolantComputations, 13 PerfectInterpolantSequences, 379/455 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: i == 0 || (((i < 2147483647 && size <= 100) && 0 <= i + 2147483648) && 0 <= i) - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: (((i < 2147483647 && size <= 100) && 0 <= i + 2147483648) && i <= 99) && 0 <= i - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((size <= 100 && 0 <= i + 2147483648) && i == 0) || (((i < 2147483647 && size <= 100) && 0 <= i + 2147483648) && 1 <= i)) && i <= 99 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ((i < 2147483647 && size <= 100) && 0 <= i + 2147483648) && 0 <= i RESULT: Ultimate proved your program to be correct! [2022-10-15 21:26:23,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...