/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-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/float-benchs/divmul_buf_diverge.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 16:41:48,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 16:41:48,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 16:41:48,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 16:41:48,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 16:41:48,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 16:41:48,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 16:41:48,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 16:41:48,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 16:41:48,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 16:41:48,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 16:41:48,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 16:41:48,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 16:41:48,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 16:41:48,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 16:41:48,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 16:41:48,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 16:41:48,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 16:41:48,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 16:41:48,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 16:41:48,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 16:41:48,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 16:41:48,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 16:41:48,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 16:41:48,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 16:41:48,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 16:41:48,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 16:41:48,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 16:41:48,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 16:41:48,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 16:41:48,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 16:41:48,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 16:41:48,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 16:41:48,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 16:41:48,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 16:41:48,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 16:41:48,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 16:41:48,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 16:41:48,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 16:41:48,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 16:41:48,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 16:41:48,325 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-15 16:41:48,356 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 16:41:48,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 16:41:48,357 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 16:41:48,357 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 16:41:48,358 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 16:41:48,358 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 16:41:48,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 16:41:48,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 16:41:48,360 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 16:41:48,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 16:41:48,360 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 16:41:48,360 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 16:41:48,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 16:41:48,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 16:41:48,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 16:41:48,361 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 16:41:48,361 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 16:41:48,362 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 16:41:48,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 16:41:48,362 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 16:41:48,362 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 16:41:48,362 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 16:41:48,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 16:41:48,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 16:41:48,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 16:41:48,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:41:48,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 16:41:48,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 16:41:48,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 16:41:48,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 16:41:48,365 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 16:41:48,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 16:41:48,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 16:41:48,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 16:41:48,772 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 16:41:48,773 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 16:41:48,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/divmul_buf_diverge.c [2022-10-15 16:41:48,863 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d53f582c6/e0b5de5822f946998cc5e066c0e76cb1/FLAG08b2599ae [2022-10-15 16:41:49,566 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 16:41:49,566 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/divmul_buf_diverge.c [2022-10-15 16:41:49,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d53f582c6/e0b5de5822f946998cc5e066c0e76cb1/FLAG08b2599ae [2022-10-15 16:41:49,591 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d53f582c6/e0b5de5822f946998cc5e066c0e76cb1 [2022-10-15 16:41:49,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 16:41:49,600 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 16:41:49,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 16:41:49,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 16:41:49,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 16:41:49,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:41:49" (1/1) ... [2022-10-15 16:41:49,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@466f64d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:49, skipping insertion in model container [2022-10-15 16:41:49,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:41:49" (1/1) ... [2022-10-15 16:41:49,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 16:41:49,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 16:41:49,796 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/float-benchs/divmul_buf_diverge.c[617,630] [2022-10-15 16:41:49,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:41:49,828 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 16:41:49,843 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/float-benchs/divmul_buf_diverge.c[617,630] [2022-10-15 16:41:49,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:41:49,866 INFO L208 MainTranslator]: Completed translation [2022-10-15 16:41:49,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:49 WrapperNode [2022-10-15 16:41:49,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 16:41:49,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 16:41:49,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 16:41:49,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 16:41:49,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:49" (1/1) ... [2022-10-15 16:41:49,885 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:49" (1/1) ... [2022-10-15 16:41:49,907 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 47 [2022-10-15 16:41:49,908 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 16:41:49,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 16:41:49,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 16:41:49,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 16:41:49,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:49" (1/1) ... [2022-10-15 16:41:49,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:49" (1/1) ... [2022-10-15 16:41:49,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:49" (1/1) ... [2022-10-15 16:41:49,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:49" (1/1) ... [2022-10-15 16:41:49,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:49" (1/1) ... [2022-10-15 16:41:49,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:49" (1/1) ... [2022-10-15 16:41:49,931 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:49" (1/1) ... [2022-10-15 16:41:49,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:49" (1/1) ... [2022-10-15 16:41:49,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 16:41:49,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 16:41:49,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 16:41:49,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 16:41:49,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:49" (1/1) ... [2022-10-15 16:41:49,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:41:49,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:41:49,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 16:41:49,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 16:41:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 16:41:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 16:41:50,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 16:41:50,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 16:41:50,117 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 16:41:50,120 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 16:41:50,255 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 16:41:50,262 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 16:41:50,263 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 16:41:50,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:41:50 BoogieIcfgContainer [2022-10-15 16:41:50,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 16:41:50,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 16:41:50,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 16:41:50,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 16:41:50,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:41:49" (1/3) ... [2022-10-15 16:41:50,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774ea579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:41:50, skipping insertion in model container [2022-10-15 16:41:50,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:49" (2/3) ... [2022-10-15 16:41:50,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774ea579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:41:50, skipping insertion in model container [2022-10-15 16:41:50,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:41:50" (3/3) ... [2022-10-15 16:41:50,276 INFO L112 eAbstractionObserver]: Analyzing ICFG divmul_buf_diverge.c [2022-10-15 16:41:50,298 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 16:41:50,299 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 16:41:50,376 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 16:41:50,389 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@248e3f13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 16:41:50,390 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 16:41:50,396 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 17 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:41:50,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-15 16:41:50,416 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:41:50,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-15 16:41:50,418 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:41:50,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:41:50,427 INFO L85 PathProgramCache]: Analyzing trace with hash 889620925, now seen corresponding path program 1 times [2022-10-15 16:41:50,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:41:50,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192781484] [2022-10-15 16:41:50,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:41:50,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:41:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:41:50,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:41:50,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:41:50,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192781484] [2022-10-15 16:41:50,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192781484] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:41:50,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:41:50,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:41:50,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572583101] [2022-10-15 16:41:50,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:41:50,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:41:50,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:41:50,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:41:50,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:41:50,792 INFO L87 Difference]: Start difference. First operand has 18 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 17 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:41:50,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:41:50,823 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2022-10-15 16:41:50,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:41:50,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-15 16:41:50,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:41:50,836 INFO L225 Difference]: With dead ends: 25 [2022-10-15 16:41:50,837 INFO L226 Difference]: Without dead ends: 23 [2022-10-15 16:41:50,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:41:50,844 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 7 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:41:50,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 32 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:41:50,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-10-15 16:41:50,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2022-10-15 16:41:50,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:41:50,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-10-15 16:41:50,897 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 6 [2022-10-15 16:41:50,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:41:50,901 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-10-15 16:41:50,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:41:50,902 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-10-15 16:41:50,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 16:41:50,906 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:41:50,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:41:50,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 16:41:50,907 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:41:50,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:41:50,908 INFO L85 PathProgramCache]: Analyzing trace with hash -875759451, now seen corresponding path program 1 times [2022-10-15 16:41:50,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:41:50,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403559488] [2022-10-15 16:41:50,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:41:50,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:41:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:41:51,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:41:51,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:41:51,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403559488] [2022-10-15 16:41:51,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403559488] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:41:51,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221685259] [2022-10-15 16:41:51,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:41:51,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:41:51,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:41:51,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 16:41:51,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 16:41:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:41:51,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 16:41:51,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:41:51,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:41:51,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:41:51,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:41:51,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221685259] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:41:51,252 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 16:41:51,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-15 16:41:51,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478454077] [2022-10-15 16:41:51,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 16:41:51,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 16:41:51,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:41:51,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 16:41:51,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 16:41:51,257 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:41:51,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:41:51,290 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2022-10-15 16:41:51,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 16:41:51,291 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-15 16:41:51,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:41:51,295 INFO L225 Difference]: With dead ends: 38 [2022-10-15 16:41:51,295 INFO L226 Difference]: Without dead ends: 38 [2022-10-15 16:41:51,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 16:41:51,298 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 37 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:41:51,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 47 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:41:51,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-10-15 16:41:51,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-10-15 16:41:51,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 37 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:41:51,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-10-15 16:41:51,307 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 11 [2022-10-15 16:41:51,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:41:51,307 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-10-15 16:41:51,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:41:51,308 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-10-15 16:41:51,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-15 16:41:51,309 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:41:51,310 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-15 16:41:51,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 16:41:51,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:41:51,526 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:41:51,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:41:51,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1424528451, now seen corresponding path program 2 times [2022-10-15 16:41:51,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:41:51,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014359797] [2022-10-15 16:41:51,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:41:51,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:41:51,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:41:51,717 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:41:51,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:41:51,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014359797] [2022-10-15 16:41:51,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014359797] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:41:51,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012944432] [2022-10-15 16:41:51,722 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 16:41:51,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:41:51,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:41:51,734 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 16:41:51,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 16:41:51,819 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 16:41:51,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 16:41:51,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 16:41:51,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:41:51,895 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:41:51,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:41:52,067 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:41:52,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012944432] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:41:52,068 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 16:41:52,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-10-15 16:41:52,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063043957] [2022-10-15 16:41:52,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 16:41:52,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 16:41:52,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:41:52,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 16:41:52,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-10-15 16:41:52,071 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:41:52,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:41:52,156 INFO L93 Difference]: Finished difference Result 80 states and 90 transitions. [2022-10-15 16:41:52,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-15 16:41:52,157 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-10-15 16:41:52,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:41:52,163 INFO L225 Difference]: With dead ends: 80 [2022-10-15 16:41:52,163 INFO L226 Difference]: Without dead ends: 80 [2022-10-15 16:41:52,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-10-15 16:41:52,170 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 123 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:41:52,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 103 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:41:52,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-10-15 16:41:52,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-10-15 16:41:52,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 78 states have (on average 1.1538461538461537) internal successors, (90), 79 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:41:52,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 90 transitions. [2022-10-15 16:41:52,196 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 90 transitions. Word has length 26 [2022-10-15 16:41:52,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:41:52,196 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 90 transitions. [2022-10-15 16:41:52,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:41:52,198 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 90 transitions. [2022-10-15 16:41:52,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-15 16:41:52,202 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:41:52,202 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2022-10-15 16:41:52,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 16:41:52,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-10-15 16:41:52,416 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:41:52,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:41:52,418 INFO L85 PathProgramCache]: Analyzing trace with hash -998809923, now seen corresponding path program 3 times [2022-10-15 16:41:52,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:41:52,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477970071] [2022-10-15 16:41:52,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:41:52,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:41:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:41:52,935 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:41:52,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:41:52,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477970071] [2022-10-15 16:41:52,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477970071] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:41:52,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248275685] [2022-10-15 16:41:52,937 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 16:41:52,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:41:52,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:41:52,939 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 16:41:53,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 16:41:53,069 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-15 16:41:53,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 16:41:53,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-15 16:41:53,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:41:53,190 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:41:53,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:41:53,510 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:41:53,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248275685] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:41:53,511 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 16:41:53,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-10-15 16:41:53,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808901530] [2022-10-15 16:41:53,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 16:41:53,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-15 16:41:53,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:41:53,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-15 16:41:53,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-15 16:41:53,517 INFO L87 Difference]: Start difference. First operand 80 states and 90 transitions. Second operand has 25 states, 25 states have (on average 4.56) internal successors, (114), 25 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:41:53,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:41:53,680 INFO L93 Difference]: Finished difference Result 164 states and 186 transitions. [2022-10-15 16:41:53,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-15 16:41:53,683 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.56) internal successors, (114), 25 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-10-15 16:41:53,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:41:53,690 INFO L225 Difference]: With dead ends: 164 [2022-10-15 16:41:53,691 INFO L226 Difference]: Without dead ends: 164 [2022-10-15 16:41:53,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-15 16:41:53,697 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 354 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:41:53,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 154 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:41:53,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-10-15 16:41:53,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2022-10-15 16:41:53,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 162 states have (on average 1.1481481481481481) internal successors, (186), 163 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:41:53,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 186 transitions. [2022-10-15 16:41:53,731 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 186 transitions. Word has length 56 [2022-10-15 16:41:53,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:41:53,732 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 186 transitions. [2022-10-15 16:41:53,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.56) internal successors, (114), 25 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:41:53,736 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 186 transitions. [2022-10-15 16:41:53,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-10-15 16:41:53,743 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:41:53,743 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2022-10-15 16:41:53,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 16:41:53,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:41:53,957 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:41:53,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:41:53,958 INFO L85 PathProgramCache]: Analyzing trace with hash 870679741, now seen corresponding path program 4 times [2022-10-15 16:41:53,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:41:53,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585664491] [2022-10-15 16:41:53,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:41:53,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:41:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:41:54,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 0 proven. 1177 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:41:54,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:41:54,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585664491] [2022-10-15 16:41:54,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585664491] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:41:54,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416704147] [2022-10-15 16:41:54,869 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-15 16:41:54,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:41:54,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:41:54,872 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 16:41:54,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 16:41:54,957 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-15 16:41:54,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 16:41:54,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-15 16:41:54,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:41:55,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 0 proven. 1177 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:41:55,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:41:56,118 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 0 proven. 1177 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:41:56,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416704147] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:41:56,119 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 16:41:56,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2022-10-15 16:41:56,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936692659] [2022-10-15 16:41:56,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 16:41:56,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-10-15 16:41:56,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:41:56,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-10-15 16:41:56,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-10-15 16:41:56,125 INFO L87 Difference]: Start difference. First operand 164 states and 186 transitions. Second operand has 49 states, 49 states have (on average 4.775510204081633) internal successors, (234), 49 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:41:56,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:41:56,606 INFO L93 Difference]: Finished difference Result 332 states and 378 transitions. [2022-10-15 16:41:56,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-15 16:41:56,607 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 4.775510204081633) internal successors, (234), 49 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2022-10-15 16:41:56,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:41:56,609 INFO L225 Difference]: With dead ends: 332 [2022-10-15 16:41:56,610 INFO L226 Difference]: Without dead ends: 332 [2022-10-15 16:41:56,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-10-15 16:41:56,612 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 676 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:41:56,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [676 Valid, 312 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:41:56,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-10-15 16:41:56,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2022-10-15 16:41:56,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 330 states have (on average 1.1454545454545455) internal successors, (378), 331 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:41:56,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 378 transitions. [2022-10-15 16:41:56,632 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 378 transitions. Word has length 116 [2022-10-15 16:41:56,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:41:56,633 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 378 transitions. [2022-10-15 16:41:56,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 4.775510204081633) internal successors, (234), 49 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:41:56,633 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 378 transitions. [2022-10-15 16:41:56,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-10-15 16:41:56,638 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:41:56,638 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1] [2022-10-15 16:41:56,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 16:41:56,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:41:56,852 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:41:56,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:41:56,853 INFO L85 PathProgramCache]: Analyzing trace with hash 582668477, now seen corresponding path program 5 times [2022-10-15 16:41:56,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:41:56,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016712378] [2022-10-15 16:41:56,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:41:56,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:41:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:41:59,614 INFO L134 CoverageAnalysis]: Checked inductivity of 5221 backedges. 0 proven. 5221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:41:59,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:41:59,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016712378] [2022-10-15 16:41:59,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016712378] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:41:59,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580018379] [2022-10-15 16:41:59,616 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-15 16:41:59,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:41:59,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:41:59,617 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 16:41:59,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 16:41:59,783 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-10-15 16:41:59,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 16:41:59,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 48 conjunts are in the unsatisfiable core [2022-10-15 16:41:59,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:42:00,125 INFO L134 CoverageAnalysis]: Checked inductivity of 5221 backedges. 0 proven. 5221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:42:00,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:42:03,442 INFO L134 CoverageAnalysis]: Checked inductivity of 5221 backedges. 0 proven. 5221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:42:03,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580018379] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:42:03,443 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 16:42:03,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 97 [2022-10-15 16:42:03,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773821728] [2022-10-15 16:42:03,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 16:42:03,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-10-15 16:42:03,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:42:03,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-10-15 16:42:03,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2022-10-15 16:42:03,453 INFO L87 Difference]: Start difference. First operand 332 states and 378 transitions. Second operand has 97 states, 97 states have (on average 4.88659793814433) internal successors, (474), 97 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:42:06,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:42:06,076 INFO L93 Difference]: Finished difference Result 668 states and 762 transitions. [2022-10-15 16:42:06,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-10-15 16:42:06,078 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 4.88659793814433) internal successors, (474), 97 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 236 [2022-10-15 16:42:06,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:42:06,086 INFO L225 Difference]: With dead ends: 668 [2022-10-15 16:42:06,087 INFO L226 Difference]: Without dead ends: 668 [2022-10-15 16:42:06,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2022-10-15 16:42:06,097 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 1662 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 16:42:06,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1662 Valid, 594 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 16:42:06,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2022-10-15 16:42:06,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 668. [2022-10-15 16:42:06,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 666 states have (on average 1.1441441441441442) internal successors, (762), 667 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:42:06,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 762 transitions. [2022-10-15 16:42:06,137 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 762 transitions. Word has length 236 [2022-10-15 16:42:06,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:42:06,139 INFO L495 AbstractCegarLoop]: Abstraction has 668 states and 762 transitions. [2022-10-15 16:42:06,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 4.88659793814433) internal successors, (474), 97 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:42:06,140 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 762 transitions. [2022-10-15 16:42:06,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2022-10-15 16:42:06,161 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:42:06,161 INFO L195 NwaCegarLoop]: trace histogram [94, 94, 94, 94, 94, 1, 1, 1, 1, 1, 1] [2022-10-15 16:42:06,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 16:42:06,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:42:06,375 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:42:06,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:42:06,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1974900547, now seen corresponding path program 6 times [2022-10-15 16:42:06,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:42:06,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139224164] [2022-10-15 16:42:06,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:42:06,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:42:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:42:14,999 INFO L134 CoverageAnalysis]: Checked inductivity of 21949 backedges. 0 proven. 21949 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:42:14,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:42:14,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139224164] [2022-10-15 16:42:14,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139224164] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:42:15,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433689950] [2022-10-15 16:42:15,000 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-15 16:42:15,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:42:15,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:42:15,003 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 16:42:15,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 16:42:15,391 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-10-15 16:42:15,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 16:42:15,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 96 conjunts are in the unsatisfiable core [2022-10-15 16:42:15,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:42:16,075 INFO L134 CoverageAnalysis]: Checked inductivity of 21949 backedges. 0 proven. 21949 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:42:16,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:42:29,040 INFO L134 CoverageAnalysis]: Checked inductivity of 21949 backedges. 0 proven. 21949 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:42:29,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433689950] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:42:29,041 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 16:42:29,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97, 97] total 193 [2022-10-15 16:42:29,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115477780] [2022-10-15 16:42:29,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 16:42:29,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 193 states [2022-10-15 16:42:29,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:42:29,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 193 interpolants. [2022-10-15 16:42:29,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18528, Invalid=18528, Unknown=0, NotChecked=0, Total=37056 [2022-10-15 16:42:29,068 INFO L87 Difference]: Start difference. First operand 668 states and 762 transitions. Second operand has 193 states, 193 states have (on average 4.94300518134715) internal successors, (954), 193 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:42:48,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:42:48,453 INFO L93 Difference]: Finished difference Result 1340 states and 1530 transitions. [2022-10-15 16:42:48,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-10-15 16:42:48,455 INFO L78 Accepts]: Start accepts. Automaton has has 193 states, 193 states have (on average 4.94300518134715) internal successors, (954), 193 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 476 [2022-10-15 16:42:48,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:42:48,463 INFO L225 Difference]: With dead ends: 1340 [2022-10-15 16:42:48,463 INFO L226 Difference]: Without dead ends: 1340 [2022-10-15 16:42:48,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1047 GetRequests, 856 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=18528, Invalid=18528, Unknown=0, NotChecked=0, Total=37056 [2022-10-15 16:42:48,468 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 3846 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3846 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 16:42:48,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3846 Valid, 1190 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 16:42:48,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2022-10-15 16:42:48,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1340. [2022-10-15 16:42:48,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 1338 states have (on average 1.1434977578475336) internal successors, (1530), 1339 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:42:48,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1530 transitions. [2022-10-15 16:42:48,497 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1530 transitions. Word has length 476 [2022-10-15 16:42:48,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:42:48,498 INFO L495 AbstractCegarLoop]: Abstraction has 1340 states and 1530 transitions. [2022-10-15 16:42:48,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 193 states, 193 states have (on average 4.94300518134715) internal successors, (954), 193 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:42:48,499 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1530 transitions. [2022-10-15 16:42:48,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 957 [2022-10-15 16:42:48,532 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:42:48,532 INFO L195 NwaCegarLoop]: trace histogram [190, 190, 190, 190, 190, 1, 1, 1, 1, 1, 1] [2022-10-15 16:42:48,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0