/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/recursive-simple/id2_b3_o5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:12:22,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:12:22,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:12:22,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:12:22,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:12:22,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:12:22,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:12:22,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:12:22,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:12:22,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:12:22,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:12:22,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:12:22,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:12:22,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:12:22,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:12:22,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:12:22,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:12:22,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:12:22,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:12:22,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:12:22,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:12:22,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:12:22,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:12:22,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:12:22,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:12:22,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:12:22,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:12:22,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:12:22,333 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 17:12:22,391 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:12:22,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:12:22,392 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:12:22,392 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:12:22,393 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:12:22,393 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:12:22,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:12:22,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:12:22,394 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:12:22,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:12:22,395 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:12:22,395 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:12:22,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:12:22,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:12:22,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:12:22,396 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:12:22,396 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:12:22,396 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:12:22,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:12:22,397 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:12:22,397 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:12:22,397 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:12:22,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:12:22,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:12:22,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:12:22,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:12:22,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:12:22,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:12:22,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:12:22,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:12:22,399 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:12:22,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:12:22,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:12:22,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:12:22,850 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:12:22,851 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:12:22,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id2_b3_o5.c [2022-10-15 17:12:22,943 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0012a5d35/37d70ea309244f58947f66e872ccb063/FLAG31cfaa785 [2022-10-15 17:12:23,630 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:12:23,631 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id2_b3_o5.c [2022-10-15 17:12:23,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0012a5d35/37d70ea309244f58947f66e872ccb063/FLAG31cfaa785 [2022-10-15 17:12:24,018 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0012a5d35/37d70ea309244f58947f66e872ccb063 [2022-10-15 17:12:24,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:12:24,029 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:12:24,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:12:24,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:12:24,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:12:24,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:12:24" (1/1) ... [2022-10-15 17:12:24,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7727b386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:24, skipping insertion in model container [2022-10-15 17:12:24,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:12:24" (1/1) ... [2022-10-15 17:12:24,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:12:24,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:12:24,225 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/id2_b3_o5.c[771,784] [2022-10-15 17:12:24,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:12:24,242 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:12:24,262 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/id2_b3_o5.c[771,784] [2022-10-15 17:12:24,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:12:24,282 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:12:24,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:24 WrapperNode [2022-10-15 17:12:24,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:12:24,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:12:24,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:12:24,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:12:24,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:24" (1/1) ... [2022-10-15 17:12:24,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:24" (1/1) ... [2022-10-15 17:12:24,326 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-10-15 17:12:24,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:12:24,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:12:24,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:12:24,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:12:24,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:24" (1/1) ... [2022-10-15 17:12:24,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:24" (1/1) ... [2022-10-15 17:12:24,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:24" (1/1) ... [2022-10-15 17:12:24,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:24" (1/1) ... [2022-10-15 17:12:24,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:24" (1/1) ... [2022-10-15 17:12:24,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:24" (1/1) ... [2022-10-15 17:12:24,349 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:24" (1/1) ... [2022-10-15 17:12:24,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:24" (1/1) ... [2022-10-15 17:12:24,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:12:24,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:12:24,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:12:24,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:12:24,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:24" (1/1) ... [2022-10-15 17:12:24,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:12:24,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:12:24,405 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 17:12:24,431 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 17:12:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:12:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:12:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2022-10-15 17:12:24,485 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2022-10-15 17:12:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:12:24,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:12:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure id [2022-10-15 17:12:24,485 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2022-10-15 17:12:24,579 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:12:24,583 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:12:24,743 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:12:24,759 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:12:24,760 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 17:12:24,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:12:24 BoogieIcfgContainer [2022-10-15 17:12:24,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:12:24,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:12:24,771 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:12:24,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:12:24,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:12:24" (1/3) ... [2022-10-15 17:12:24,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6706f2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:12:24, skipping insertion in model container [2022-10-15 17:12:24,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:24" (2/3) ... [2022-10-15 17:12:24,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6706f2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:12:24, skipping insertion in model container [2022-10-15 17:12:24,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:12:24" (3/3) ... [2022-10-15 17:12:24,793 INFO L112 eAbstractionObserver]: Analyzing ICFG id2_b3_o5.c [2022-10-15 17:12:24,854 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:12:24,854 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:12:24,939 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:12:24,950 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;@6696aeb7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:12:24,950 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:12:24,956 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 17 states have (on average 1.411764705882353) internal successors, (24), 19 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-15 17:12:24,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 17:12:24,967 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:24,968 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:24,969 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:24,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:24,976 INFO L85 PathProgramCache]: Analyzing trace with hash -841068317, now seen corresponding path program 1 times [2022-10-15 17:12:24,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:24,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303290875] [2022-10-15 17:12:24,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:24,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:25,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:25,466 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 17:12:25,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:25,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303290875] [2022-10-15 17:12:25,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303290875] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:12:25,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:12:25,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:12:25,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41502983] [2022-10-15 17:12:25,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:12:25,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:12:25,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:25,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:12:25,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:12:25,519 INFO L87 Difference]: Start difference. First operand has 25 states, 17 states have (on average 1.411764705882353) internal successors, (24), 19 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 17:12:25,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:25,588 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-10-15 17:12:25,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:12:25,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-10-15 17:12:25,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:25,612 INFO L225 Difference]: With dead ends: 33 [2022-10-15 17:12:25,612 INFO L226 Difference]: Without dead ends: 29 [2022-10-15 17:12:25,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:12:25,622 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 4 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:25,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 100 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:12:25,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-10-15 17:12:25,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-10-15 17:12:25,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.263157894736842) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-15 17:12:25,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2022-10-15 17:12:25,696 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 10 [2022-10-15 17:12:25,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:25,697 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2022-10-15 17:12:25,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 17:12:25,699 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-10-15 17:12:25,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 17:12:25,703 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:25,703 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:25,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:12:25,704 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:25,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:25,707 INFO L85 PathProgramCache]: Analyzing trace with hash -841068157, now seen corresponding path program 1 times [2022-10-15 17:12:25,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:25,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228710596] [2022-10-15 17:12:25,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:25,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:25,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:25,825 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 17:12:25,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:25,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228710596] [2022-10-15 17:12:25,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228710596] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:12:25,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:12:25,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:12:25,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896073735] [2022-10-15 17:12:25,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:12:25,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:12:25,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:25,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:12:25,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:12:25,834 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 17:12:25,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:25,842 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2022-10-15 17:12:25,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:12:25,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-10-15 17:12:25,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:25,844 INFO L225 Difference]: With dead ends: 26 [2022-10-15 17:12:25,844 INFO L226 Difference]: Without dead ends: 23 [2022-10-15 17:12:25,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 17:12:25,847 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 2 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:25,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 44 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:12:25,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-10-15 17:12:25,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-10-15 17:12:25,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-10-15 17:12:25,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-10-15 17:12:25,855 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 10 [2022-10-15 17:12:25,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:25,855 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-10-15 17:12:25,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 17:12:25,856 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-10-15 17:12:25,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-15 17:12:25,857 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:25,857 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:25,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:12:25,858 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:25,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:25,858 INFO L85 PathProgramCache]: Analyzing trace with hash 242768260, now seen corresponding path program 1 times [2022-10-15 17:12:25,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:25,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964459935] [2022-10-15 17:12:25,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:25,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:25,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:26,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:26,194 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 17:12:26,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:26,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964459935] [2022-10-15 17:12:26,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964459935] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:12:26,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:12:26,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:12:26,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737544443] [2022-10-15 17:12:26,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:12:26,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:12:26,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:26,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:12:26,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:12:26,199 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 17:12:26,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:26,224 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2022-10-15 17:12:26,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:12:26,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-10-15 17:12:26,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:26,226 INFO L225 Difference]: With dead ends: 29 [2022-10-15 17:12:26,226 INFO L226 Difference]: Without dead ends: 29 [2022-10-15 17:12:26,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:12:26,228 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 2 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:26,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 94 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:12:26,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-10-15 17:12:26,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-10-15 17:12:26,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-15 17:12:26,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-10-15 17:12:26,238 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 17 [2022-10-15 17:12:26,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:26,238 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-10-15 17:12:26,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 17:12:26,239 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-10-15 17:12:26,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-15 17:12:26,240 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:26,240 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:26,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:12:26,241 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:26,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:26,241 INFO L85 PathProgramCache]: Analyzing trace with hash 271397411, now seen corresponding path program 1 times [2022-10-15 17:12:26,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:26,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342016820] [2022-10-15 17:12:26,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:26,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:26,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:26,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:26,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:26,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:12:26,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:26,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342016820] [2022-10-15 17:12:26,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342016820] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:12:26,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:12:26,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 17:12:26,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918248965] [2022-10-15 17:12:26,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:12:26,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 17:12:26,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:26,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 17:12:26,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:12:26,619 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 17:12:26,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:26,698 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-10-15 17:12:26,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 17:12:26,699 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-10-15 17:12:26,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:26,701 INFO L225 Difference]: With dead ends: 31 [2022-10-15 17:12:26,701 INFO L226 Difference]: Without dead ends: 29 [2022-10-15 17:12:26,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:12:26,704 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 2 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:26,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 154 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:12:26,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-10-15 17:12:26,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-10-15 17:12:26,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-15 17:12:26,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-10-15 17:12:26,712 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 17 [2022-10-15 17:12:26,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:26,716 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-10-15 17:12:26,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 17:12:26,717 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-10-15 17:12:26,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 17:12:26,718 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:26,718 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:26,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:12:26,719 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:26,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:26,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1539041884, now seen corresponding path program 1 times [2022-10-15 17:12:26,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:26,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382188147] [2022-10-15 17:12:26,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:26,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:26,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:26,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:26,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:26,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:27,016 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:12:27,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:27,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382188147] [2022-10-15 17:12:27,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382188147] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:12:27,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:12:27,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:12:27,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324697700] [2022-10-15 17:12:27,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:12:27,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:12:27,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:27,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:12:27,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:12:27,020 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-15 17:12:27,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:27,041 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-10-15 17:12:27,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:12:27,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2022-10-15 17:12:27,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:27,043 INFO L225 Difference]: With dead ends: 33 [2022-10-15 17:12:27,043 INFO L226 Difference]: Without dead ends: 33 [2022-10-15 17:12:27,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:12:27,045 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 2 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:27,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 94 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:12:27,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-10-15 17:12:27,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2022-10-15 17:12:27,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 states have internal predecessors, (26), 3 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-15 17:12:27,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2022-10-15 17:12:27,055 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 24 [2022-10-15 17:12:27,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:27,056 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2022-10-15 17:12:27,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-15 17:12:27,056 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2022-10-15 17:12:27,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 17:12:27,058 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:27,058 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:27,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:12:27,059 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:27,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:27,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1342528379, now seen corresponding path program 1 times [2022-10-15 17:12:27,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:27,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481028406] [2022-10-15 17:12:27,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:27,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:27,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:27,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:27,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:27,355 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:12:27,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:27,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481028406] [2022-10-15 17:12:27,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481028406] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:12:27,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:12:27,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 17:12:27,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335915658] [2022-10-15 17:12:27,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:12:27,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 17:12:27,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:27,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 17:12:27,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:12:27,364 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-15 17:12:27,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:27,450 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2022-10-15 17:12:27,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 17:12:27,451 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2022-10-15 17:12:27,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:27,454 INFO L225 Difference]: With dead ends: 37 [2022-10-15 17:12:27,454 INFO L226 Difference]: Without dead ends: 37 [2022-10-15 17:12:27,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:12:27,462 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 4 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:27,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 172 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:12:27,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-10-15 17:12:27,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2022-10-15 17:12:27,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.16) internal successors, (29), 26 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 6 states have return successors, (7), 6 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-15 17:12:27,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2022-10-15 17:12:27,483 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 24 [2022-10-15 17:12:27,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:27,483 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2022-10-15 17:12:27,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-15 17:12:27,484 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2022-10-15 17:12:27,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 17:12:27,487 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:27,487 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:27,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:12:27,490 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:27,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:27,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1371157530, now seen corresponding path program 1 times [2022-10-15 17:12:27,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:27,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468775275] [2022-10-15 17:12:27,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:27,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:27,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:27,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:27,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:27,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:27,872 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:12:27,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:27,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468775275] [2022-10-15 17:12:27,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468775275] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:12:27,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78213792] [2022-10-15 17:12:27,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:27,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:27,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:12:27,882 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 17:12:27,904 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 17:12:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:27,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-15 17:12:27,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:12:28,180 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:12:28,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:12:28,371 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:12:28,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78213792] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-15 17:12:28,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-15 17:12:28,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 11] total 15 [2022-10-15 17:12:28,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520376973] [2022-10-15 17:12:28,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:12:28,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:12:28,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:28,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:12:28,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-10-15 17:12:28,376 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-15 17:12:28,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:28,408 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-10-15 17:12:28,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:12:28,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2022-10-15 17:12:28,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:28,409 INFO L225 Difference]: With dead ends: 33 [2022-10-15 17:12:28,409 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 17:12:28,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-10-15 17:12:28,411 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:28,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:12:28,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 17:12:28,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 17:12:28,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:12:28,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 17:12:28,414 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2022-10-15 17:12:28,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:28,414 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 17:12:28,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-15 17:12:28,414 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 17:12:28,418 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 17:12:28,423 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-10-15 17:12:28,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-10-15 17:12:28,470 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 17:12:28,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:28,649 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:28,652 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 17:12:28,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 05:12:28 BoogieIcfgContainer [2022-10-15 17:12:28,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 17:12:28,659 INFO L158 Benchmark]: Toolchain (without parser) took 4636.12ms. Allocated memory was 161.5MB in the beginning and 203.4MB in the end (delta: 41.9MB). Free memory was 135.6MB in the beginning and 100.1MB in the end (delta: 35.6MB). Peak memory consumption was 78.3MB. Max. memory is 8.0GB. [2022-10-15 17:12:28,659 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 161.5MB. Free memory is still 131.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 17:12:28,660 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.24ms. Allocated memory is still 161.5MB. Free memory was 135.4MB in the beginning and 125.7MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-15 17:12:28,660 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.95ms. Allocated memory is still 161.5MB. Free memory was 125.7MB in the beginning and 124.4MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 17:12:28,661 INFO L158 Benchmark]: Boogie Preprocessor took 24.60ms. Allocated memory is still 161.5MB. Free memory was 124.4MB in the beginning and 123.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 17:12:28,661 INFO L158 Benchmark]: RCFGBuilder took 412.77ms. Allocated memory is still 161.5MB. Free memory was 123.4MB in the beginning and 113.5MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-15 17:12:28,662 INFO L158 Benchmark]: TraceAbstraction took 3887.59ms. Allocated memory was 161.5MB in the beginning and 203.4MB in the end (delta: 41.9MB). Free memory was 113.0MB in the beginning and 100.1MB in the end (delta: 12.9MB). Peak memory consumption was 56.3MB. Max. memory is 8.0GB. [2022-10-15 17:12:28,665 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 161.5MB. Free memory is still 131.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 252.24ms. Allocated memory is still 161.5MB. Free memory was 135.4MB in the beginning and 125.7MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.95ms. Allocated memory is still 161.5MB. Free memory was 125.7MB in the beginning and 124.4MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.60ms. Allocated memory is still 161.5MB. Free memory was 124.4MB in the beginning and 123.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 412.77ms. Allocated memory is still 161.5MB. Free memory was 123.4MB in the beginning and 113.5MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 3887.59ms. Allocated memory was 161.5MB in the beginning and 203.4MB in the end (delta: 41.9MB). Free memory was 113.0MB in the beginning and 100.1MB in the end (delta: 12.9MB). Peak memory consumption was 56.3MB. 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: 27]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 23]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 737 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 561 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 117 IncrementalHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 176 mSDtfsCounter, 117 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=6, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 10 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 165 ConstructedInterpolants, 0 QuantifiedInterpolants, 522 SizeOfPredicates, 3 NumberOfNonLiveVariables, 74 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 16/20 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-10-15 17:12:28,715 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...