/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/recursive-simple/id_i5_o5-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:48:07,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:48:07,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:48:07,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:48:07,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:48:07,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:48:07,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:48:07,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:48:07,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:48:07,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:48:07,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:48:07,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:48:07,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:48:07,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:48:07,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:48:07,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:48:07,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:48:07,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:48:07,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:48:07,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:48:07,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:48:07,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:48:07,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:48:07,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:48:07,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 17:48:07,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 17:48:07,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 17:48:07,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 17:48:07,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 17:48:07,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 17:48:07,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 17:48:07,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 17:48:07,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 17:48:07,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:48:07,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:48:07,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:48:07,539 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 [2022-10-16 17:48:07,590 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:48:07,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:48:07,591 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:48:07,591 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:48:07,594 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:48:07,594 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:48:07,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:48:07,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:48:07,597 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:48:07,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:48:07,599 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:48:07,599 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:48:07,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:48:07,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:48:07,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:48:07,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:48:07,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:48:07,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:48:07,600 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:48:07,601 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:48:07,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:48:07,601 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:48:07,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:48:07,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:48:07,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:48:07,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:48:07,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:48:07,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:48:07,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:48:07,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:48:07,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:48:07,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:48:07,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:48:07,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:48:08,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:48:08,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:48:08,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:48:08,073 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:48:08,073 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:48:08,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_i5_o5-1.c [2022-10-16 17:48:08,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03c33e131/c5ffdada718f402d95137a311780a106/FLAGc3c6c63cb [2022-10-16 17:48:08,807 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:48:08,808 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i5_o5-1.c [2022-10-16 17:48:08,816 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03c33e131/c5ffdada718f402d95137a311780a106/FLAGc3c6c63cb [2022-10-16 17:48:09,189 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03c33e131/c5ffdada718f402d95137a311780a106 [2022-10-16 17:48:09,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:48:09,201 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:48:09,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:48:09,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:48:09,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:48:09,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:48:09" (1/1) ... [2022-10-16 17:48:09,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68545cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:48:09, skipping insertion in model container [2022-10-16 17:48:09,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:48:09" (1/1) ... [2022-10-16 17:48:09,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:48:09,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:48:09,501 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i5_o5-1.c[450,463] [2022-10-16 17:48:09,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:48:09,518 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:48:09,536 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i5_o5-1.c[450,463] [2022-10-16 17:48:09,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:48:09,559 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:48:09,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:48:09 WrapperNode [2022-10-16 17:48:09,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:48:09,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:48:09,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:48:09,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:48:09,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:48:09" (1/1) ... [2022-10-16 17:48:09,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:48:09" (1/1) ... [2022-10-16 17:48:09,606 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-10-16 17:48:09,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:48:09,609 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:48:09,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:48:09,609 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:48:09,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:48:09" (1/1) ... [2022-10-16 17:48:09,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:48:09" (1/1) ... [2022-10-16 17:48:09,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:48:09" (1/1) ... [2022-10-16 17:48:09,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:48:09" (1/1) ... [2022-10-16 17:48:09,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:48:09" (1/1) ... [2022-10-16 17:48:09,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:48:09" (1/1) ... [2022-10-16 17:48:09,640 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:48:09" (1/1) ... [2022-10-16 17:48:09,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:48:09" (1/1) ... [2022-10-16 17:48:09,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:48:09,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:48:09,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:48:09,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:48:09,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:48:09" (1/1) ... [2022-10-16 17:48:09,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:48:09,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:48:09,695 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) [2022-10-16 17:48:09,718 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 [2022-10-16 17:48:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 17:48:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:48:09,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:48:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 17:48:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure id [2022-10-16 17:48:09,781 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2022-10-16 17:48:09,872 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:48:09,875 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:48:10,039 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:48:10,046 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:48:10,046 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 17:48:10,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:48:10 BoogieIcfgContainer [2022-10-16 17:48:10,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:48:10,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:48:10,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:48:10,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:48:10,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:48:09" (1/3) ... [2022-10-16 17:48:10,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f1c6d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:48:10, skipping insertion in model container [2022-10-16 17:48:10,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:48:09" (2/3) ... [2022-10-16 17:48:10,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f1c6d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:48:10, skipping insertion in model container [2022-10-16 17:48:10,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:48:10" (3/3) ... [2022-10-16 17:48:10,060 INFO L112 eAbstractionObserver]: Analyzing ICFG id_i5_o5-1.c [2022-10-16 17:48:10,083 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:48:10,083 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-16 17:48:10,179 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:48:10,191 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;@770e0080, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:48:10,191 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-16 17:48:10,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 17:48:10,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 17:48:10,217 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:48:10,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 17:48:10,222 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:48:10,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:48:10,230 INFO L85 PathProgramCache]: Analyzing trace with hash 890289268, now seen corresponding path program 1 times [2022-10-16 17:48:10,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:48:10,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993698990] [2022-10-16 17:48:10,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:48:10,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:48:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:10,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:48:10,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:48:10,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993698990] [2022-10-16 17:48:10,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993698990] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:48:10,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:48:10,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:48:10,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844638918] [2022-10-16 17:48:10,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:48:10,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:48:10,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:48:10,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:48:10,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:48:10,673 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:48:10,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:48:10,758 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2022-10-16 17:48:10,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:48:10,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 17:48:10,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:48:10,784 INFO L225 Difference]: With dead ends: 26 [2022-10-16 17:48:10,788 INFO L226 Difference]: Without dead ends: 16 [2022-10-16 17:48:10,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:48:10,802 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 27 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:48:10,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 36 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:48:10,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-10-16 17:48:10,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-10-16 17:48:10,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:48:10,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-10-16 17:48:10,867 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 6 [2022-10-16 17:48:10,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:48:10,868 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-10-16 17:48:10,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:48:10,869 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-10-16 17:48:10,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 17:48:10,870 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:48:10,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:48:10,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:48:10,872 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:48:10,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:48:10,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1829163585, now seen corresponding path program 1 times [2022-10-16 17:48:10,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:48:10,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065804732] [2022-10-16 17:48:10,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:48:10,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:48:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:11,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:48:11,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:48:11,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065804732] [2022-10-16 17:48:11,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065804732] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:48:11,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:48:11,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:48:11,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52155392] [2022-10-16 17:48:11,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:48:11,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:48:11,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:48:11,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:48:11,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:48:11,005 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:48:11,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:48:11,051 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2022-10-16 17:48:11,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:48:11,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 17:48:11,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:48:11,054 INFO L225 Difference]: With dead ends: 31 [2022-10-16 17:48:11,054 INFO L226 Difference]: Without dead ends: 26 [2022-10-16 17:48:11,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:48:11,056 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 17 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:48:11,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 50 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:48:11,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-10-16 17:48:11,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-10-16 17:48:11,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 17:48:11,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-10-16 17:48:11,069 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 7 [2022-10-16 17:48:11,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:48:11,070 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-10-16 17:48:11,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:48:11,071 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-10-16 17:48:11,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 17:48:11,072 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:48:11,072 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 17:48:11,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:48:11,073 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:48:11,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:48:11,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1830524380, now seen corresponding path program 1 times [2022-10-16 17:48:11,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:48:11,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179665874] [2022-10-16 17:48:11,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:48:11,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:48:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:11,197 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:48:11,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:48:11,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179665874] [2022-10-16 17:48:11,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179665874] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:48:11,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664324356] [2022-10-16 17:48:11,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:48:11,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:48:11,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:48:11,201 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) [2022-10-16 17:48:11,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 17:48:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:11,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:48:11,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:48:11,362 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:48:11,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:48:11,451 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:48:11,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664324356] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:48:11,452 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:48:11,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-10-16 17:48:11,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937735384] [2022-10-16 17:48:11,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:48:11,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 17:48:11,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:48:11,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 17:48:11,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:48:11,455 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:48:11,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:48:11,627 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2022-10-16 17:48:11,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:48:11,628 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 17:48:11,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:48:11,631 INFO L225 Difference]: With dead ends: 74 [2022-10-16 17:48:11,631 INFO L226 Difference]: Without dead ends: 66 [2022-10-16 17:48:11,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2022-10-16 17:48:11,634 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 110 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:48:11,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 89 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:48:11,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-16 17:48:11,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2022-10-16 17:48:11,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 43 states have internal predecessors, (54), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 17:48:11,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2022-10-16 17:48:11,652 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 12 [2022-10-16 17:48:11,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:48:11,652 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2022-10-16 17:48:11,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:48:11,653 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2022-10-16 17:48:11,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 17:48:11,654 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:48:11,654 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:48:11,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 17:48:11,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:48:11,871 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:48:11,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:48:11,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1359868900, now seen corresponding path program 1 times [2022-10-16 17:48:11,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:48:11,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415933641] [2022-10-16 17:48:11,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:48:11,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:48:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:11,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 17:48:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:11,986 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 17:48:11,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:48:11,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415933641] [2022-10-16 17:48:11,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415933641] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:48:11,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:48:11,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:48:11,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033328641] [2022-10-16 17:48:11,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:48:11,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:48:11,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:48:11,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:48:11,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:48:11,991 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:48:12,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:48:12,015 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2022-10-16 17:48:12,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:48:12,016 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-10-16 17:48:12,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:48:12,018 INFO L225 Difference]: With dead ends: 74 [2022-10-16 17:48:12,019 INFO L226 Difference]: Without dead ends: 72 [2022-10-16 17:48:12,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:48:12,021 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:48:12,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 38 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:48:12,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-10-16 17:48:12,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-10-16 17:48:12,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 57 states have internal predecessors, (69), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2022-10-16 17:48:12,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2022-10-16 17:48:12,046 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 19 [2022-10-16 17:48:12,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:48:12,047 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2022-10-16 17:48:12,047 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:48:12,048 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2022-10-16 17:48:12,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 17:48:12,049 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:48:12,049 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:48:12,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 17:48:12,050 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:48:12,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:48:12,051 INFO L85 PathProgramCache]: Analyzing trace with hash -2128706883, now seen corresponding path program 1 times [2022-10-16 17:48:12,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:48:12,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051973676] [2022-10-16 17:48:12,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:48:12,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:48:12,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:12,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 17:48:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:12,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:12,322 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 17:48:12,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:48:12,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051973676] [2022-10-16 17:48:12,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051973676] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:48:12,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975559075] [2022-10-16 17:48:12,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:48:12,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:48:12,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:48:12,325 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) [2022-10-16 17:48:12,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 17:48:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:12,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 17:48:12,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:48:12,486 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 17:48:12,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:48:12,769 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:48:12,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975559075] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:48:12,770 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:48:12,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 18 [2022-10-16 17:48:12,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558549340] [2022-10-16 17:48:12,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:48:12,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 17:48:12,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:48:12,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 17:48:12,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-10-16 17:48:12,773 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-10-16 17:48:13,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:48:13,067 INFO L93 Difference]: Finished difference Result 101 states and 117 transitions. [2022-10-16 17:48:13,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:48:13,068 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 24 [2022-10-16 17:48:13,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:48:13,070 INFO L225 Difference]: With dead ends: 101 [2022-10-16 17:48:13,070 INFO L226 Difference]: Without dead ends: 79 [2022-10-16 17:48:13,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2022-10-16 17:48:13,073 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 109 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:48:13,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 91 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:48:13,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-10-16 17:48:13,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 72. [2022-10-16 17:48:13,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.1964285714285714) internal successors, (67), 56 states have internal predecessors, (67), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (10), 10 states have call predecessors, (10), 5 states have call successors, (10) [2022-10-16 17:48:13,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2022-10-16 17:48:13,088 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 24 [2022-10-16 17:48:13,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:48:13,089 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2022-10-16 17:48:13,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-10-16 17:48:13,090 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2022-10-16 17:48:13,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 17:48:13,091 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:48:13,091 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-10-16 17:48:13,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 17:48:13,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:48:13,307 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:48:13,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:48:13,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1294342655, now seen corresponding path program 2 times [2022-10-16 17:48:13,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:48:13,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801546967] [2022-10-16 17:48:13,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:48:13,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:48:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:13,568 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:48:13,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:48:13,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801546967] [2022-10-16 17:48:13,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801546967] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:48:13,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738454131] [2022-10-16 17:48:13,570 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:48:13,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:48:13,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:48:13,571 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) [2022-10-16 17:48:13,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 17:48:13,617 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:48:13,617 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:48:13,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 17:48:13,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:48:13,682 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:48:13,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:48:13,876 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:48:13,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738454131] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:48:13,877 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:48:13,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-10-16 17:48:13,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921675634] [2022-10-16 17:48:13,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:48:13,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 17:48:13,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:48:13,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 17:48:13,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-10-16 17:48:13,880 INFO L87 Difference]: Start difference. First operand 72 states and 83 transitions. Second operand has 24 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 14 states have internal predecessors, (43), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:48:14,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:48:14,298 INFO L93 Difference]: Finished difference Result 220 states and 236 transitions. [2022-10-16 17:48:14,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-16 17:48:14,299 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 14 states have internal predecessors, (43), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 17:48:14,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:48:14,303 INFO L225 Difference]: With dead ends: 220 [2022-10-16 17:48:14,303 INFO L226 Difference]: Without dead ends: 197 [2022-10-16 17:48:14,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=389, Invalid=1017, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 17:48:14,308 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 304 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:48:14,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 202 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:48:14,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-10-16 17:48:14,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 177. [2022-10-16 17:48:14,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 139 states have (on average 1.2014388489208634) internal successors, (167), 139 states have internal predecessors, (167), 12 states have call successors, (12), 11 states have call predecessors, (12), 23 states have return successors, (26), 26 states have call predecessors, (26), 11 states have call successors, (26) [2022-10-16 17:48:14,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 205 transitions. [2022-10-16 17:48:14,342 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 205 transitions. Word has length 27 [2022-10-16 17:48:14,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:48:14,342 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 205 transitions. [2022-10-16 17:48:14,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 14 states have internal predecessors, (43), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:48:14,343 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 205 transitions. [2022-10-16 17:48:14,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 17:48:14,345 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:48:14,345 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 17:48:14,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-10-16 17:48:14,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:48:14,559 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:48:14,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:48:14,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1697859681, now seen corresponding path program 1 times [2022-10-16 17:48:14,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:48:14,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039670445] [2022-10-16 17:48:14,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:48:14,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:48:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:14,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 17:48:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:14,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:14,635 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-10-16 17:48:14,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:48:14,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039670445] [2022-10-16 17:48:14,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039670445] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:48:14,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:48:14,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:48:14,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062423572] [2022-10-16 17:48:14,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:48:14,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:48:14,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:48:14,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:48:14,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:48:14,642 INFO L87 Difference]: Start difference. First operand 177 states and 205 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:48:14,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:48:14,662 INFO L93 Difference]: Finished difference Result 177 states and 205 transitions. [2022-10-16 17:48:14,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:48:14,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-10-16 17:48:14,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:48:14,665 INFO L225 Difference]: With dead ends: 177 [2022-10-16 17:48:14,666 INFO L226 Difference]: Without dead ends: 175 [2022-10-16 17:48:14,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:48:14,672 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:48:14,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:48:14,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-10-16 17:48:14,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2022-10-16 17:48:14,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 138 states have (on average 1.1231884057971016) internal successors, (155), 137 states have internal predecessors, (155), 12 states have call successors, (12), 11 states have call predecessors, (12), 23 states have return successors, (26), 26 states have call predecessors, (26), 11 states have call successors, (26) [2022-10-16 17:48:14,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 193 transitions. [2022-10-16 17:48:14,738 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 193 transitions. Word has length 40 [2022-10-16 17:48:14,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:48:14,738 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 193 transitions. [2022-10-16 17:48:14,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:48:14,739 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 193 transitions. [2022-10-16 17:48:14,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 17:48:14,744 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:48:14,744 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 17:48:14,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 17:48:14,744 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:48:14,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:48:14,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1883083449, now seen corresponding path program 2 times [2022-10-16 17:48:14,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:48:14,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752904523] [2022-10-16 17:48:14,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:48:14,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:48:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:14,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 17:48:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:14,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:14,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:14,967 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-10-16 17:48:14,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:48:14,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752904523] [2022-10-16 17:48:14,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752904523] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:48:14,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116678133] [2022-10-16 17:48:14,969 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:48:14,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:48:14,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:48:14,976 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) [2022-10-16 17:48:14,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 17:48:15,026 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:48:15,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:48:15,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 17:48:15,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:48:15,086 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-16 17:48:15,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:48:15,296 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-16 17:48:15,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116678133] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:48:15,296 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:48:15,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 16 [2022-10-16 17:48:15,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758796202] [2022-10-16 17:48:15,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:48:15,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-16 17:48:15,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:48:15,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-16 17:48:15,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 17:48:15,299 INFO L87 Difference]: Start difference. First operand 175 states and 193 transitions. Second operand has 17 states, 16 states have (on average 2.25) internal successors, (36), 17 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 17:48:15,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:48:15,457 INFO L93 Difference]: Finished difference Result 369 states and 429 transitions. [2022-10-16 17:48:15,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:48:15,458 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.25) internal successors, (36), 17 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) Word has length 44 [2022-10-16 17:48:15,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:48:15,461 INFO L225 Difference]: With dead ends: 369 [2022-10-16 17:48:15,461 INFO L226 Difference]: Without dead ends: 315 [2022-10-16 17:48:15,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=183, Invalid=629, Unknown=0, NotChecked=0, Total=812 [2022-10-16 17:48:15,464 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 33 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:48:15,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 44 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:48:15,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-10-16 17:48:15,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2022-10-16 17:48:15,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 252 states have (on average 1.0595238095238095) internal successors, (267), 247 states have internal predecessors, (267), 12 states have call successors, (12), 11 states have call predecessors, (12), 49 states have return successors, (56), 56 states have call predecessors, (56), 11 states have call successors, (56) [2022-10-16 17:48:15,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 335 transitions. [2022-10-16 17:48:15,488 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 335 transitions. Word has length 44 [2022-10-16 17:48:15,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:48:15,488 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 335 transitions. [2022-10-16 17:48:15,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.25) internal successors, (36), 17 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 17:48:15,489 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 335 transitions. [2022-10-16 17:48:15,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 17:48:15,491 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:48:15,491 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1, 1] [2022-10-16 17:48:15,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 17:48:15,704 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 [2022-10-16 17:48:15,705 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:48:15,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:48:15,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1160556449, now seen corresponding path program 3 times [2022-10-16 17:48:15,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:48:15,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119892447] [2022-10-16 17:48:15,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:48:15,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:48:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:16,137 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:48:16,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:48:16,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119892447] [2022-10-16 17:48:16,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119892447] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:48:16,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991543331] [2022-10-16 17:48:16,139 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:48:16,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:48:16,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:48:16,141 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) [2022-10-16 17:48:16,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 17:48:16,202 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-16 17:48:16,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:48:16,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 17:48:16,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:48:16,324 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:48:16,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:48:16,963 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:48:16,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991543331] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:48:16,963 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:48:16,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-10-16 17:48:16,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146053312] [2022-10-16 17:48:16,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:48:16,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-10-16 17:48:16,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:48:16,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-10-16 17:48:16,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 17:48:16,967 INFO L87 Difference]: Start difference. First operand 315 states and 335 transitions. Second operand has 48 states, 45 states have (on average 2.022222222222222) internal successors, (91), 26 states have internal predecessors, (91), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:48:17,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:48:17,150 INFO L93 Difference]: Finished difference Result 320 states and 335 transitions. [2022-10-16 17:48:17,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 17:48:17,151 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 2.022222222222222) internal successors, (91), 26 states have internal predecessors, (91), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-10-16 17:48:17,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:48:17,153 INFO L225 Difference]: With dead ends: 320 [2022-10-16 17:48:17,153 INFO L226 Difference]: Without dead ends: 319 [2022-10-16 17:48:17,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=860, Invalid=2110, Unknown=0, NotChecked=0, Total=2970 [2022-10-16 17:48:17,157 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 191 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:48:17,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 161 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:48:17,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-10-16 17:48:17,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 314. [2022-10-16 17:48:17,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 252 states have (on average 1.0555555555555556) internal successors, (266), 246 states have internal predecessors, (266), 12 states have call successors, (12), 11 states have call predecessors, (12), 49 states have return successors, (56), 56 states have call predecessors, (56), 11 states have call successors, (56) [2022-10-16 17:48:17,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 334 transitions. [2022-10-16 17:48:17,175 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 334 transitions. Word has length 57 [2022-10-16 17:48:17,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:48:17,176 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 334 transitions. [2022-10-16 17:48:17,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 2.022222222222222) internal successors, (91), 26 states have internal predecessors, (91), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:48:17,177 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 334 transitions. [2022-10-16 17:48:17,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 17:48:17,180 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:48:17,180 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 17:48:17,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 17:48:17,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:48:17,397 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:48:17,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:48:17,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1310980903, now seen corresponding path program 3 times [2022-10-16 17:48:17,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:48:17,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513540951] [2022-10-16 17:48:17,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:48:17,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:48:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:17,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 17:48:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:17,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:17,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:17,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:17,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:17,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:17,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:17,990 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 7 proven. 99 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-10-16 17:48:17,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:48:17,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513540951] [2022-10-16 17:48:17,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513540951] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:48:17,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356165837] [2022-10-16 17:48:17,991 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:48:17,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:48:17,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:48:17,992 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) [2022-10-16 17:48:18,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 17:48:18,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-10-16 17:48:18,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:48:18,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 17:48:18,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:48:18,151 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-10-16 17:48:18,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:48:19,469 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-10-16 17:48:19,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356165837] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:48:19,470 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:48:19,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 32 [2022-10-16 17:48:19,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161460614] [2022-10-16 17:48:19,470 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:48:19,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-16 17:48:19,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:48:19,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-16 17:48:19,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=783, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 17:48:19,473 INFO L87 Difference]: Start difference. First operand 314 states and 334 transitions. Second operand has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 17:48:19,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:48:19,883 INFO L93 Difference]: Finished difference Result 731 states and 838 transitions. [2022-10-16 17:48:19,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 17:48:19,884 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) Word has length 74 [2022-10-16 17:48:19,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:48:19,888 INFO L225 Difference]: With dead ends: 731 [2022-10-16 17:48:19,889 INFO L226 Difference]: Without dead ends: 378 [2022-10-16 17:48:19,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1365 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=751, Invalid=2909, Unknown=0, NotChecked=0, Total=3660 [2022-10-16 17:48:19,899 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 71 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:48:19,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 58 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:48:19,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-10-16 17:48:19,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2022-10-16 17:48:19,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 305 states have (on average 1.0360655737704918) internal successors, (316), 296 states have internal predecessors, (316), 12 states have call successors, (12), 11 states have call predecessors, (12), 60 states have return successors, (70), 70 states have call predecessors, (70), 11 states have call successors, (70) [2022-10-16 17:48:19,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 398 transitions. [2022-10-16 17:48:19,935 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 398 transitions. Word has length 74 [2022-10-16 17:48:19,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:48:19,936 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 398 transitions. [2022-10-16 17:48:19,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 17:48:19,936 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 398 transitions. [2022-10-16 17:48:19,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-10-16 17:48:19,954 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:48:19,954 INFO L195 NwaCegarLoop]: trace histogram [27, 26, 26, 26, 26, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-10-16 17:48:20,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 17:48:20,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:48:20,169 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:48:20,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:48:20,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1285693380, now seen corresponding path program 4 times [2022-10-16 17:48:20,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:48:20,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548797498] [2022-10-16 17:48:20,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:48:20,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:48:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:20,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 17:48:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:21,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:21,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:21,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:22,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:22,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:22,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:22,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:22,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:22,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:22,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:22,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:23,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:23,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:23,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:23,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2188 backedges. 26 proven. 511 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2022-10-16 17:48:23,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:48:23,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548797498] [2022-10-16 17:48:23,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548797498] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:48:23,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879610175] [2022-10-16 17:48:23,167 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 17:48:23,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:48:23,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:48:23,171 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) [2022-10-16 17:48:23,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 17:48:23,259 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 17:48:23,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:48:23,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 56 conjunts are in the unsatisfiable core [2022-10-16 17:48:23,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:48:24,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2188 backedges. 841 proven. 864 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2022-10-16 17:48:24,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:48:39,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2188 backedges. 841 proven. 1242 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-10-16 17:48:39,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879610175] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:48:39,319 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:48:39,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 43, 57] total 114 [2022-10-16 17:48:39,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924485217] [2022-10-16 17:48:39,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:48:39,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 114 states [2022-10-16 17:48:39,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:48:39,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2022-10-16 17:48:39,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1423, Invalid=11459, Unknown=0, NotChecked=0, Total=12882 [2022-10-16 17:48:39,330 INFO L87 Difference]: Start difference. First operand 378 states and 398 transitions. Second operand has 114 states, 112 states have (on average 2.5625) internal successors, (287), 90 states have internal predecessors, (287), 42 states have call successors, (43), 25 states have call predecessors, (43), 30 states have return successors, (45), 30 states have call predecessors, (45), 18 states have call successors, (45) [2022-10-16 17:48:39,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:48:39,997 INFO L93 Difference]: Finished difference Result 378 states and 398 transitions. [2022-10-16 17:48:39,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 17:48:39,999 INFO L78 Accepts]: Start accepts. Automaton has has 114 states, 112 states have (on average 2.5625) internal successors, (287), 90 states have internal predecessors, (287), 42 states have call successors, (43), 25 states have call predecessors, (43), 30 states have return successors, (45), 30 states have call predecessors, (45), 18 states have call successors, (45) Word has length 209 [2022-10-16 17:48:40,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:48:40,000 INFO L225 Difference]: With dead ends: 378 [2022-10-16 17:48:40,000 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 17:48:40,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 350 SyntacticMatches, 15 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7649 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2161, Invalid=13589, Unknown=0, NotChecked=0, Total=15750 [2022-10-16 17:48:40,006 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 56 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:48:40,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 75 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 17:48:40,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 17:48:40,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 17:48:40,007 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) [2022-10-16 17:48:40,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 17:48:40,008 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 209 [2022-10-16 17:48:40,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:48:40,008 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 17:48:40,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 114 states, 112 states have (on average 2.5625) internal successors, (287), 90 states have internal predecessors, (287), 42 states have call successors, (43), 25 states have call predecessors, (43), 30 states have return successors, (45), 30 states have call predecessors, (45), 18 states have call successors, (45) [2022-10-16 17:48:40,009 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 17:48:40,009 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 17:48:40,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-10-16 17:48:40,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-10-16 17:48:40,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-10-16 17:48:40,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-10-16 17:48:40,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 17:48:40,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:48:40,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 17:48:40,398 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 17:48:40,399 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 17:48:40,399 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 17:48:40,399 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 17:48:40,399 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-10-16 17:48:40,399 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2022-10-16 17:48:40,399 INFO L895 garLoopResultBuilder]: At program point L13(line 13) the Hoare annotation is: (and (<= 5 |ULTIMATE.start_main_~input~0#1|) (<= |ULTIMATE.start_main_~input~0#1| 5)) [2022-10-16 17:48:40,400 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2022-10-16 17:48:40,400 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 17) no Hoare annotation was computed. [2022-10-16 17:48:40,400 INFO L899 garLoopResultBuilder]: For program point idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-10-16 17:48:40,400 INFO L899 garLoopResultBuilder]: For program point idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-10-16 17:48:40,400 INFO L899 garLoopResultBuilder]: For program point idFINAL(lines 6 9) no Hoare annotation was computed. [2022-10-16 17:48:40,400 INFO L899 garLoopResultBuilder]: For program point idEXIT(lines 6 9) no Hoare annotation was computed. [2022-10-16 17:48:40,401 INFO L902 garLoopResultBuilder]: At program point idENTRY(lines 6 9) the Hoare annotation is: true [2022-10-16 17:48:40,401 INFO L899 garLoopResultBuilder]: For program point idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-10-16 17:48:40,401 INFO L899 garLoopResultBuilder]: For program point idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-10-16 17:48:40,401 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2022-10-16 17:48:40,401 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-10-16 17:48:40,401 INFO L899 garLoopResultBuilder]: For program point L8-1(line 8) no Hoare annotation was computed. [2022-10-16 17:48:40,402 INFO L895 garLoopResultBuilder]: At program point L8-2(line 8) the Hoare annotation is: (let ((.cse0 (= |id_#in~x| id_~x))) (and (or (not (<= |id_#in~x| 0)) (not (<= 0 |id_#in~x|))) (or .cse0 (not (<= 2 |id_#in~x|)) (not (<= |id_#in~x| 2))) (or .cse0 (not (<= |id_#in~x| 5)) (not (< 2 |id_#in~x|))) (or (not (<= |id_#in~x| 1)) .cse0 (not (<= 1 |id_#in~x|))))) [2022-10-16 17:48:40,402 INFO L899 garLoopResultBuilder]: For program point L8-3(line 8) no Hoare annotation was computed. [2022-10-16 17:48:40,402 INFO L899 garLoopResultBuilder]: For program point L8-4(line 8) no Hoare annotation was computed. [2022-10-16 17:48:40,402 INFO L899 garLoopResultBuilder]: For program point L8-5(line 8) no Hoare annotation was computed. [2022-10-16 17:48:40,406 INFO L444 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1, 1] [2022-10-16 17:48:40,409 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 17:48:40,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:48:40 BoogieIcfgContainer [2022-10-16 17:48:40,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 17:48:40,413 INFO L158 Benchmark]: Toolchain (without parser) took 31217.50ms. Allocated memory was 156.2MB in the beginning and 390.1MB in the end (delta: 233.8MB). Free memory was 130.7MB in the beginning and 289.5MB in the end (delta: -158.9MB). Peak memory consumption was 75.7MB. Max. memory is 8.0GB. [2022-10-16 17:48:40,414 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 156.2MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 17:48:40,414 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.32ms. Allocated memory is still 156.2MB. Free memory was 130.4MB in the beginning and 121.2MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 17:48:40,414 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.51ms. Allocated memory is still 156.2MB. Free memory was 121.2MB in the beginning and 119.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 17:48:40,415 INFO L158 Benchmark]: Boogie Preprocessor took 35.64ms. Allocated memory is still 156.2MB. Free memory was 119.8MB in the beginning and 118.9MB in the end (delta: 887.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 17:48:40,415 INFO L158 Benchmark]: RCFGBuilder took 402.72ms. Allocated memory is still 156.2MB. Free memory was 118.8MB in the beginning and 109.7MB in the end (delta: 9.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 17:48:40,416 INFO L158 Benchmark]: TraceAbstraction took 30361.21ms. Allocated memory was 156.2MB in the beginning and 390.1MB in the end (delta: 233.8MB). Free memory was 109.0MB in the beginning and 289.5MB in the end (delta: -180.5MB). Peak memory consumption was 54.8MB. Max. memory is 8.0GB. [2022-10-16 17:48:40,417 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 156.2MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 354.32ms. Allocated memory is still 156.2MB. Free memory was 130.4MB in the beginning and 121.2MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.51ms. Allocated memory is still 156.2MB. Free memory was 121.2MB in the beginning and 119.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.64ms. Allocated memory is still 156.2MB. Free memory was 119.8MB in the beginning and 118.9MB in the end (delta: 887.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 402.72ms. Allocated memory is still 156.2MB. Free memory was 118.8MB in the beginning and 109.7MB in the end (delta: 9.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 30361.21ms. Allocated memory was 156.2MB in the beginning and 390.1MB in the end (delta: 233.8MB). Free memory was 109.0MB in the beginning and 289.5MB in the end (delta: -180.5MB). Peak memory consumption was 54.8MB. 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: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: 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 2 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 30.3s, OverallIterations: 11, TraceHistogramMax: 27, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 950 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 920 mSDsluCounter, 869 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 695 mSDsCounter, 237 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1892 IncrementalHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 237 mSolverCounterUnsat, 174 mSDtfsCounter, 1892 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1144 GetRequests, 777 SyntacticMatches, 17 SemanticMatches, 350 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10233 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=378occurred in iteration=10, InterpolantAutomatonStates: 163, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 46 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 25 PreInvPairs, 25 NumberOfFragments, 54 HoareAnnotationTreeSize, 25 FomulaSimplifications, 379 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 451 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 24.5s InterpolantComputationTime, 966 NumberOfCodeBlocks, 864 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 1388 ConstructedInterpolants, 0 QuantifiedInterpolants, 3874 SizeOfPredicates, 48 NumberOfNonLiveVariables, 811 ConjunctsInSsa, 128 ConjunctsInUnsatCore, 25 InterpolantComputations, 4 PerfectInterpolantSequences, 4574/8495 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-10-16 17:48:40,457 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...