/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/fibo_7-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:12:10,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:12:10,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:12:10,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:12:10,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:12:10,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:12:10,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:12:10,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:12:10,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:12:10,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:12:10,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:12:10,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:12:10,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:12:10,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:12:10,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:12:10,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:12:10,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:12:10,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:12:10,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:12:10,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:12:10,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:12:10,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:12:10,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:12:10,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:12:10,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:12:11,005 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:12:11,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:12:11,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:12:11,009 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 17:12:11,062 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:12:11,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:12:11,064 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:12:11,064 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:12:11,065 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:12:11,066 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:12:11,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:12:11,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:12:11,067 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:12:11,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:12:11,067 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:12:11,068 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:12:11,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:12:11,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:12:11,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:12:11,068 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:12:11,069 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:12:11,069 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:12:11,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:12:11,069 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:12:11,069 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:12:11,070 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:12:11,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:12:11,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:12:11,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:12:11,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:12:11,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:12:11,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:12:11,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:12:11,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:12:11,071 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:12:11,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:12:11,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:12:11,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:12:11,551 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:12:11,552 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:12:11,554 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_7-1.c [2022-10-15 17:12:11,632 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c156a374/fd42f5a821294487a8b9db34de28e628/FLAGaa7b98fc5 [2022-10-15 17:12:12,203 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:12:12,203 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_7-1.c [2022-10-15 17:12:12,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c156a374/fd42f5a821294487a8b9db34de28e628/FLAGaa7b98fc5 [2022-10-15 17:12:12,604 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c156a374/fd42f5a821294487a8b9db34de28e628 [2022-10-15 17:12:12,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:12:12,617 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:12:12,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:12:12,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:12:12,627 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:12:12,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:12:12" (1/1) ... [2022-10-15 17:12:12,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79fa7afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:12, skipping insertion in model container [2022-10-15 17:12:12,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:12:12" (1/1) ... [2022-10-15 17:12:12,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:12:12,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:12:12,890 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/fibo_7-1.c[741,754] [2022-10-15 17:12:12,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:12:12,905 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:12:12,923 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/fibo_7-1.c[741,754] [2022-10-15 17:12:12,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:12:12,941 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:12:12,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:12 WrapperNode [2022-10-15 17:12:12,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:12:12,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:12:12,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:12:12,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:12:12,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:12" (1/1) ... [2022-10-15 17:12:12,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:12" (1/1) ... [2022-10-15 17:12:12,984 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-10-15 17:12:12,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:12:12,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:12:12,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:12:12,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:12:12,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:12" (1/1) ... [2022-10-15 17:12:12,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:12" (1/1) ... [2022-10-15 17:12:12,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:12" (1/1) ... [2022-10-15 17:12:12,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:12" (1/1) ... [2022-10-15 17:12:13,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:12" (1/1) ... [2022-10-15 17:12:13,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:12" (1/1) ... [2022-10-15 17:12:13,007 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:12" (1/1) ... [2022-10-15 17:12:13,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:12" (1/1) ... [2022-10-15 17:12:13,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:12:13,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:12:13,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:12:13,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:12:13,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:12" (1/1) ... [2022-10-15 17:12:13,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:12:13,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:12:13,054 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 17:12:13,071 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 17:12:13,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:12:13,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:12:13,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:12:13,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:12:13,136 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2022-10-15 17:12:13,136 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2022-10-15 17:12:13,232 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:12:13,235 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:12:13,421 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:12:13,434 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:12:13,436 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 17:12:13,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:12:13 BoogieIcfgContainer [2022-10-15 17:12:13,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:12:13,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:12:13,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:12:13,447 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:12:13,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:12:12" (1/3) ... [2022-10-15 17:12:13,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b12ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:12:13, skipping insertion in model container [2022-10-15 17:12:13,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:12:12" (2/3) ... [2022-10-15 17:12:13,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b12ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:12:13, skipping insertion in model container [2022-10-15 17:12:13,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:12:13" (3/3) ... [2022-10-15 17:12:13,455 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_7-1.c [2022-10-15 17:12:13,481 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:12:13,482 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:12:13,560 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:12:13,573 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;@29fb3be8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:12:13,575 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:12:13,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 16 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-15 17:12:13,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 17:12:13,596 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:13,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:13,598 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:13,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:13,607 INFO L85 PathProgramCache]: Analyzing trace with hash 904384931, now seen corresponding path program 1 times [2022-10-15 17:12:13,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:13,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147774252] [2022-10-15 17:12:13,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:13,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:13,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:13,984 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 17:12:13,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:13,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147774252] [2022-10-15 17:12:13,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147774252] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:12:13,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:12:13,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:12:13,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092822620] [2022-10-15 17:12:13,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:12:14,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:12:14,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:14,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:12:14,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:12:14,091 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 16 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 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 17:12:14,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:14,230 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2022-10-15 17:12:14,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:12:14,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 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 17:12:14,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:14,249 INFO L225 Difference]: With dead ends: 23 [2022-10-15 17:12:14,249 INFO L226 Difference]: Without dead ends: 21 [2022-10-15 17:12:14,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:12:14,261 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 16 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:14,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 45 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:12:14,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-10-15 17:12:14,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-10-15 17:12:14,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-15 17:12:14,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2022-10-15 17:12:14,320 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 10 [2022-10-15 17:12:14,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:14,321 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2022-10-15 17:12:14,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 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 17:12:14,322 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2022-10-15 17:12:14,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 17:12:14,323 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:14,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:14,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:12:14,324 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:14,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:14,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1314065684, now seen corresponding path program 1 times [2022-10-15 17:12:14,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:14,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389317610] [2022-10-15 17:12:14,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:14,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:14,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,456 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 17:12:14,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:14,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389317610] [2022-10-15 17:12:14,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389317610] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:12:14,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:12:14,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:12:14,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599795295] [2022-10-15 17:12:14,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:12:14,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:12:14,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:14,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:12:14,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:12:14,461 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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 17:12:14,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:14,504 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2022-10-15 17:12:14,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:12:14,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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 11 [2022-10-15 17:12:14,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:14,507 INFO L225 Difference]: With dead ends: 23 [2022-10-15 17:12:14,507 INFO L226 Difference]: Without dead ends: 23 [2022-10-15 17:12:14,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:12:14,509 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 13 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:14,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 39 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:12:14,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-10-15 17:12:14,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2022-10-15 17:12:14,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-15 17:12:14,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2022-10-15 17:12:14,523 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 11 [2022-10-15 17:12:14,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:14,523 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2022-10-15 17:12:14,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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 17:12:14,525 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2022-10-15 17:12:14,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 17:12:14,526 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:14,527 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:14,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:12:14,527 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:14,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:14,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1542136281, now seen corresponding path program 1 times [2022-10-15 17:12:14,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:14,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112939400] [2022-10-15 17:12:14,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:14,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 17:12:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,766 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 17:12:14,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:14,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112939400] [2022-10-15 17:12:14,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112939400] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:12:14,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70765988] [2022-10-15 17:12:14,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:14,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:14,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:12:14,771 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 17:12:14,791 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 17:12:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 17:12:14,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:12:14,945 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 17:12:14,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:12:15,180 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 17:12:15,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70765988] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:12:15,181 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:12:15,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 12 [2022-10-15 17:12:15,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511915913] [2022-10-15 17:12:15,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:12:15,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-15 17:12:15,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:15,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-15 17:12:15,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-10-15 17:12:15,185 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 12 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 12 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-15 17:12:15,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:15,310 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2022-10-15 17:12:15,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 17:12:15,311 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 12 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) Word has length 23 [2022-10-15 17:12:15,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:15,312 INFO L225 Difference]: With dead ends: 23 [2022-10-15 17:12:15,312 INFO L226 Difference]: Without dead ends: 23 [2022-10-15 17:12:15,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:12:15,317 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 39 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:15,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 61 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:12:15,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-10-15 17:12:15,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-10-15 17:12:15,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 18 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-15 17:12:15,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-10-15 17:12:15,334 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 23 [2022-10-15 17:12:15,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:15,337 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-10-15 17:12:15,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 12 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-15 17:12:15,337 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-10-15 17:12:15,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 17:12:15,339 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:15,339 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:15,374 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 17:12:15,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:15,557 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:15,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:15,559 INFO L85 PathProgramCache]: Analyzing trace with hash 928132326, now seen corresponding path program 1 times [2022-10-15 17:12:15,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:15,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198726574] [2022-10-15 17:12:15,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:15,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:15,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:15,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:15,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:15,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:15,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:15,801 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:12:15,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:15,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198726574] [2022-10-15 17:12:15,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198726574] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:12:15,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936168742] [2022-10-15 17:12:15,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:15,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:15,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:12:15,804 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 17:12:15,828 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 17:12:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:15,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 17:12:15,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:12:15,918 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:12:15,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:12:16,096 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 17:12:16,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936168742] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:12:16,097 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:12:16,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 11 [2022-10-15 17:12:16,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520652492] [2022-10-15 17:12:16,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:12:16,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-15 17:12:16,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:16,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-15 17:12:16,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:12:16,100 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-15 17:12:16,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:16,200 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2022-10-15 17:12:16,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:12:16,201 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) Word has length 24 [2022-10-15 17:12:16,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:16,203 INFO L225 Difference]: With dead ends: 37 [2022-10-15 17:12:16,203 INFO L226 Difference]: Without dead ends: 37 [2022-10-15 17:12:16,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-10-15 17:12:16,205 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 35 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:16,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 66 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:12:16,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-10-15 17:12:16,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-10-15 17:12:16,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2022-10-15 17:12:16,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2022-10-15 17:12:16,218 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 24 [2022-10-15 17:12:16,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:16,219 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2022-10-15 17:12:16,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-15 17:12:16,219 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2022-10-15 17:12:16,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-15 17:12:16,222 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:16,222 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:16,263 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 17:12:16,427 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,SelfDestructingSolverStorable3 [2022-10-15 17:12:16,428 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:16,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:16,430 INFO L85 PathProgramCache]: Analyzing trace with hash 20539716, now seen corresponding path program 2 times [2022-10-15 17:12:16,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:16,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049665559] [2022-10-15 17:12:16,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:16,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:16,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:16,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:16,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:16,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:16,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:16,735 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-15 17:12:16,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:16,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049665559] [2022-10-15 17:12:16,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049665559] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:12:16,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98219376] [2022-10-15 17:12:16,736 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 17:12:16,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:16,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:12:16,743 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 17:12:16,768 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 17:12:16,811 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 17:12:16,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 17:12:16,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 17:12:16,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:12:16,942 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-15 17:12:16,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:12:17,296 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-15 17:12:17,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98219376] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:12:17,297 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:12:17,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 9] total 17 [2022-10-15 17:12:17,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81319729] [2022-10-15 17:12:17,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:12:17,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-15 17:12:17,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:17,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-15 17:12:17,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2022-10-15 17:12:17,302 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (13), 6 states have call predecessors, (13), 10 states have call successors, (13) [2022-10-15 17:12:17,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:17,487 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2022-10-15 17:12:17,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 17:12:17,488 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (13), 6 states have call predecessors, (13), 10 states have call successors, (13) Word has length 37 [2022-10-15 17:12:17,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:17,489 INFO L225 Difference]: With dead ends: 41 [2022-10-15 17:12:17,489 INFO L226 Difference]: Without dead ends: 41 [2022-10-15 17:12:17,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 75 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2022-10-15 17:12:17,491 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 56 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:17,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 92 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:12:17,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-15 17:12:17,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-10-15 17:12:17,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 29 states have internal predecessors, (33), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (11), 7 states have call predecessors, (11), 5 states have call successors, (11) [2022-10-15 17:12:17,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2022-10-15 17:12:17,501 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 37 [2022-10-15 17:12:17,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:17,501 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2022-10-15 17:12:17,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (13), 6 states have call predecessors, (13), 10 states have call successors, (13) [2022-10-15 17:12:17,502 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2022-10-15 17:12:17,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-15 17:12:17,505 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:17,505 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 9, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:17,548 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 17:12:17,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:17,719 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:17,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:17,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1096059159, now seen corresponding path program 3 times [2022-10-15 17:12:17,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:17,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782637944] [2022-10-15 17:12:17,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:17,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:17,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:17,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:18,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:18,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:18,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:18,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:18,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:18,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:18,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:18,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:18,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:18,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:18,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:18,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:18,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:18,345 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 22 proven. 127 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-10-15 17:12:18,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:18,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782637944] [2022-10-15 17:12:18,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782637944] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:12:18,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084887243] [2022-10-15 17:12:18,348 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 17:12:18,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:18,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:12:18,352 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 17:12:18,364 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 17:12:18,421 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-10-15 17:12:18,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 17:12:18,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 17:12:18,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:12:18,478 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 89 proven. 32 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-10-15 17:12:18,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:12:18,839 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 89 proven. 41 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-10-15 17:12:18,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084887243] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:12:18,839 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:12:18,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 9] total 17 [2022-10-15 17:12:18,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528276456] [2022-10-15 17:12:18,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:12:18,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-15 17:12:18,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:18,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-15 17:12:18,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2022-10-15 17:12:18,842 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand has 17 states, 15 states have (on average 3.066666666666667) internal successors, (46), 17 states have internal predecessors, (46), 10 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) [2022-10-15 17:12:19,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:19,052 INFO L93 Difference]: Finished difference Result 93 states and 138 transitions. [2022-10-15 17:12:19,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-15 17:12:19,052 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.066666666666667) internal successors, (46), 17 states have internal predecessors, (46), 10 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) Word has length 79 [2022-10-15 17:12:19,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:19,070 INFO L225 Difference]: With dead ends: 93 [2022-10-15 17:12:19,071 INFO L226 Difference]: Without dead ends: 93 [2022-10-15 17:12:19,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 170 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2022-10-15 17:12:19,077 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 68 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:19,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 83 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:12:19,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-10-15 17:12:19,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 87. [2022-10-15 17:12:19,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 58 states have internal predecessors, (68), 16 states have call successors, (16), 7 states have call predecessors, (16), 11 states have return successors, (43), 21 states have call predecessors, (43), 16 states have call successors, (43) [2022-10-15 17:12:19,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 127 transitions. [2022-10-15 17:12:19,119 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 127 transitions. Word has length 79 [2022-10-15 17:12:19,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:19,120 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 127 transitions. [2022-10-15 17:12:19,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.066666666666667) internal successors, (46), 17 states have internal predecessors, (46), 10 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) [2022-10-15 17:12:19,120 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 127 transitions. [2022-10-15 17:12:19,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-10-15 17:12:19,125 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:19,125 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 20, 12, 12, 12, 12, 12, 12, 12, 8, 5, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:19,152 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-10-15 17:12:19,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:19,331 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:19,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:19,332 INFO L85 PathProgramCache]: Analyzing trace with hash 415114883, now seen corresponding path program 4 times [2022-10-15 17:12:19,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:19,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347025647] [2022-10-15 17:12:19,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:19,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:19,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:19,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:12:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:20,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:20,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1654 backedges. 93 proven. 533 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked. [2022-10-15 17:12:20,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:20,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347025647] [2022-10-15 17:12:20,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347025647] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:12:20,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530731473] [2022-10-15 17:12:20,457 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-15 17:12:20,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:20,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:12:20,459 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 17:12:20,461 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 17:12:20,552 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-15 17:12:20,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 17:12:20,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-15 17:12:20,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:12:20,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1654 backedges. 93 proven. 533 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked. [2022-10-15 17:12:20,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:12:22,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1654 backedges. 93 proven. 573 refuted. 0 times theorem prover too weak. 988 trivial. 0 not checked. [2022-10-15 17:12:22,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530731473] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:12:22,100 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:12:22,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 15] total 22 [2022-10-15 17:12:22,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770400846] [2022-10-15 17:12:22,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:12:22,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-15 17:12:22,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:22,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-15 17:12:22,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=307, Unknown=0, NotChecked=0, Total=462 [2022-10-15 17:12:22,105 INFO L87 Difference]: Start difference. First operand 87 states and 127 transitions. Second operand has 22 states, 21 states have (on average 2.857142857142857) internal successors, (60), 22 states have internal predecessors, (60), 19 states have call successors, (20), 1 states have call predecessors, (20), 7 states have return successors, (28), 12 states have call predecessors, (28), 19 states have call successors, (28) [2022-10-15 17:12:22,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:22,339 INFO L93 Difference]: Finished difference Result 207 states and 346 transitions. [2022-10-15 17:12:22,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:12:22,340 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.857142857142857) internal successors, (60), 22 states have internal predecessors, (60), 19 states have call successors, (20), 1 states have call predecessors, (20), 7 states have return successors, (28), 12 states have call predecessors, (28), 19 states have call successors, (28) Word has length 174 [2022-10-15 17:12:22,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:22,345 INFO L225 Difference]: With dead ends: 207 [2022-10-15 17:12:22,345 INFO L226 Difference]: Without dead ends: 207 [2022-10-15 17:12:22,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 383 SyntacticMatches, 7 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=330, Unknown=0, NotChecked=0, Total=506 [2022-10-15 17:12:22,347 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 79 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:22,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 112 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:12:22,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-10-15 17:12:22,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 195. [2022-10-15 17:12:22,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 126 states have (on average 1.1904761904761905) internal successors, (150), 126 states have internal predecessors, (150), 42 states have call successors, (42), 14 states have call predecessors, (42), 25 states have return successors, (137), 54 states have call predecessors, (137), 42 states have call successors, (137) [2022-10-15 17:12:22,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 329 transitions. [2022-10-15 17:12:22,383 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 329 transitions. Word has length 174 [2022-10-15 17:12:22,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:22,385 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 329 transitions. [2022-10-15 17:12:22,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.857142857142857) internal successors, (60), 22 states have internal predecessors, (60), 19 states have call successors, (20), 1 states have call predecessors, (20), 7 states have return successors, (28), 12 states have call predecessors, (28), 19 states have call successors, (28) [2022-10-15 17:12:22,385 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 329 transitions. [2022-10-15 17:12:22,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-10-15 17:12:22,392 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:22,392 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 38, 23, 23, 23, 23, 23, 23, 23, 15, 9, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:22,434 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 17:12:22,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:22,607 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:22,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:22,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1121666208, now seen corresponding path program 5 times [2022-10-15 17:12:22,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:22,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162229288] [2022-10-15 17:12:22,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:22,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:24,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:24,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:12:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:24,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-15 17:12:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:24,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:24,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:24,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:12:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:24,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:25,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:25,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:25,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:25,063 INFO L134 CoverageAnalysis]: Checked inductivity of 6039 backedges. 1307 proven. 1260 refuted. 0 times theorem prover too weak. 3472 trivial. 0 not checked. [2022-10-15 17:12:25,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:25,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162229288] [2022-10-15 17:12:25,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162229288] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:12:25,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519998944] [2022-10-15 17:12:25,064 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-15 17:12:25,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:25,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:12:25,067 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 17:12:25,094 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 17:12:25,291 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 37 check-sat command(s) [2022-10-15 17:12:25,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 17:12:25,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-15 17:12:25,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:12:25,582 INFO L134 CoverageAnalysis]: Checked inductivity of 6039 backedges. 1301 proven. 1075 refuted. 0 times theorem prover too weak. 3663 trivial. 0 not checked. [2022-10-15 17:12:25,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:12:28,465 INFO L134 CoverageAnalysis]: Checked inductivity of 6039 backedges. 1305 proven. 1130 refuted. 0 times theorem prover too weak. 3604 trivial. 0 not checked. [2022-10-15 17:12:28,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519998944] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:12:28,466 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:12:28,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 16, 25] total 40 [2022-10-15 17:12:28,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219177761] [2022-10-15 17:12:28,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:12:28,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-15 17:12:28,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:28,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-15 17:12:28,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=1225, Unknown=0, NotChecked=0, Total=1560 [2022-10-15 17:12:28,471 INFO L87 Difference]: Start difference. First operand 195 states and 329 transitions. Second operand has 40 states, 39 states have (on average 2.6923076923076925) internal successors, (105), 40 states have internal predecessors, (105), 30 states have call successors, (37), 1 states have call predecessors, (37), 15 states have return successors, (53), 25 states have call predecessors, (53), 30 states have call successors, (53) [2022-10-15 17:12:29,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:29,242 INFO L93 Difference]: Finished difference Result 117 states and 156 transitions. [2022-10-15 17:12:29,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-10-15 17:12:29,243 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 2.6923076923076925) internal successors, (105), 40 states have internal predecessors, (105), 30 states have call successors, (37), 1 states have call predecessors, (37), 15 states have return successors, (53), 25 states have call predecessors, (53), 30 states have call successors, (53) Word has length 324 [2022-10-15 17:12:29,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:29,245 INFO L225 Difference]: With dead ends: 117 [2022-10-15 17:12:29,247 INFO L226 Difference]: Without dead ends: 117 [2022-10-15 17:12:29,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 792 GetRequests, 719 SyntacticMatches, 12 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1432 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=913, Invalid=2993, Unknown=0, NotChecked=0, Total=3906 [2022-10-15 17:12:29,250 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 177 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:29,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 296 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 17:12:29,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-10-15 17:12:29,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 93. [2022-10-15 17:12:29,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 66 states have (on average 1.0454545454545454) internal successors, (69), 65 states have internal predecessors, (69), 17 states have call successors, (17), 13 states have call predecessors, (17), 8 states have return successors, (39), 14 states have call predecessors, (39), 17 states have call successors, (39) [2022-10-15 17:12:29,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 125 transitions. [2022-10-15 17:12:29,265 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 125 transitions. Word has length 324 [2022-10-15 17:12:29,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:29,266 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 125 transitions. [2022-10-15 17:12:29,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 2.6923076923076925) internal successors, (105), 40 states have internal predecessors, (105), 30 states have call successors, (37), 1 states have call predecessors, (37), 15 states have return successors, (53), 25 states have call predecessors, (53), 30 states have call successors, (53) [2022-10-15 17:12:29,266 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 125 transitions. [2022-10-15 17:12:29,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-10-15 17:12:29,271 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:29,271 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 33, 20, 20, 20, 20, 20, 20, 20, 13, 8, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:29,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 17:12:29,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:29,486 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:29,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:29,487 INFO L85 PathProgramCache]: Analyzing trace with hash 647706620, now seen corresponding path program 6 times [2022-10-15 17:12:29,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:29,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853675822] [2022-10-15 17:12:29,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:29,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:32,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:33,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:33,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:34,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:34,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:12:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:34,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-15 17:12:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:35,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:35,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:35,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:35,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:35,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:35,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:35,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:35,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:35,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:35,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:35,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:35,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:35,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:35,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:35,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:35,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:35,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:35,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:35,475 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 0 proven. 1500 refuted. 0 times theorem prover too weak. 3068 trivial. 0 not checked. [2022-10-15 17:12:35,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:35,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853675822] [2022-10-15 17:12:35,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853675822] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:12:35,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755159929] [2022-10-15 17:12:35,476 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-15 17:12:35,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:35,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:12:35,478 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:12:35,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 17:12:35,706 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 41 check-sat command(s) [2022-10-15 17:12:35,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 17:12:35,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 167 conjunts are in the unsatisfiable core [2022-10-15 17:12:35,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:12:36,861 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 0 proven. 1500 refuted. 0 times theorem prover too weak. 3068 trivial. 0 not checked. [2022-10-15 17:12:36,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:12:39,293 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 0 proven. 1500 refuted. 0 times theorem prover too weak. 3068 trivial. 0 not checked. [2022-10-15 17:12:39,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755159929] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:12:39,294 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:12:39,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 28 [2022-10-15 17:12:39,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954872339] [2022-10-15 17:12:39,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:12:39,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-15 17:12:39,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:39,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-15 17:12:39,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2022-10-15 17:12:39,301 INFO L87 Difference]: Start difference. First operand 93 states and 125 transitions. Second operand has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 15 states have internal predecessors, (34), 6 states have call successors, (7), 1 states have call predecessors, (7), 7 states have return successors, (18), 18 states have call predecessors, (18), 6 states have call successors, (18) [2022-10-15 17:12:39,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:39,709 INFO L93 Difference]: Finished difference Result 104 states and 145 transitions. [2022-10-15 17:12:39,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-15 17:12:39,710 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 15 states have internal predecessors, (34), 6 states have call successors, (7), 1 states have call predecessors, (7), 7 states have return successors, (18), 18 states have call predecessors, (18), 6 states have call successors, (18) Word has length 283 [2022-10-15 17:12:39,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:39,715 INFO L225 Difference]: With dead ends: 104 [2022-10-15 17:12:39,716 INFO L226 Difference]: Without dead ends: 104 [2022-10-15 17:12:39,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 731 GetRequests, 661 SyntacticMatches, 44 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2022-10-15 17:12:39,717 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 3 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:39,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 662 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 17:12:39,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-10-15 17:12:39,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2022-10-15 17:12:39,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 73 states have (on average 1.0410958904109588) internal successors, (76), 71 states have internal predecessors, (76), 18 states have call successors, (18), 13 states have call predecessors, (18), 10 states have return successors, (50), 18 states have call predecessors, (50), 18 states have call successors, (50) [2022-10-15 17:12:39,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 144 transitions. [2022-10-15 17:12:39,753 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 144 transitions. Word has length 283 [2022-10-15 17:12:39,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:39,755 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 144 transitions. [2022-10-15 17:12:39,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 15 states have internal predecessors, (34), 6 states have call successors, (7), 1 states have call predecessors, (7), 7 states have return successors, (18), 18 states have call predecessors, (18), 6 states have call successors, (18) [2022-10-15 17:12:39,755 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 144 transitions. [2022-10-15 17:12:39,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-10-15 17:12:39,766 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:39,766 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 33, 20, 20, 20, 20, 20, 20, 20, 13, 8, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:39,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 17:12:39,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:39,981 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:39,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:39,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1395926284, now seen corresponding path program 1 times [2022-10-15 17:12:39,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:39,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753837249] [2022-10-15 17:12:39,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:39,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:12:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-15 17:12:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,440 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4568 trivial. 0 not checked. [2022-10-15 17:12:40,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:40,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753837249] [2022-10-15 17:12:40,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753837249] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:12:40,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:12:40,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:12:40,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276740461] [2022-10-15 17:12:40,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:12:40,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:12:40,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:40,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:12:40,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:12:40,443 INFO L87 Difference]: Start difference. First operand 103 states and 144 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-15 17:12:40,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:40,448 INFO L93 Difference]: Finished difference Result 102 states and 143 transitions. [2022-10-15 17:12:40,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:12:40,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 284 [2022-10-15 17:12:40,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:40,451 INFO L225 Difference]: With dead ends: 102 [2022-10-15 17:12:40,452 INFO L226 Difference]: Without dead ends: 98 [2022-10-15 17:12:40,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 83 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 17:12:40,453 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 33 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 17:12:40,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 33 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:12:40,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-10-15 17:12:40,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-10-15 17:12:40,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 69 states have (on average 1.0289855072463767) internal successors, (71), 67 states have internal predecessors, (71), 18 states have call successors, (18), 13 states have call predecessors, (18), 10 states have return successors, (49), 17 states have call predecessors, (49), 18 states have call successors, (49) [2022-10-15 17:12:40,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 138 transitions. [2022-10-15 17:12:40,468 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 138 transitions. Word has length 284 [2022-10-15 17:12:40,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:40,470 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 138 transitions. [2022-10-15 17:12:40,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-15 17:12:40,470 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 138 transitions. [2022-10-15 17:12:40,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2022-10-15 17:12:40,480 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:40,480 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 41, 25, 25, 25, 25, 25, 25, 25, 16, 10, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:40,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:12:40,481 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:40,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:40,481 INFO L85 PathProgramCache]: Analyzing trace with hash -945805785, now seen corresponding path program 7 times [2022-10-15 17:12:40,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:40,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038458095] [2022-10-15 17:12:40,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:40,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:40,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:41,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:41,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:41,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:41,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:41,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:42,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:42,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:12:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:42,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:42,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-15 17:12:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-10-15 17:12:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:42,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:42,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,456 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 913 proven. 1281 refuted. 0 times theorem prover too weak. 4926 trivial. 0 not checked. [2022-10-15 17:12:42,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:42,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038458095] [2022-10-15 17:12:42,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038458095] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:12:42,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70836577] [2022-10-15 17:12:42,457 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-15 17:12:42,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:42,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:12:42,458 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:12:42,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 17:12:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:42,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 803 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-15 17:12:42,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:12:42,780 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 419 proven. 1507 refuted. 0 times theorem prover too weak. 5194 trivial. 0 not checked. [2022-10-15 17:12:42,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:12:45,318 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 419 proven. 1577 refuted. 0 times theorem prover too weak. 5124 trivial. 0 not checked. [2022-10-15 17:12:45,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70836577] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:12:45,319 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:12:45,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 12, 19] total 33 [2022-10-15 17:12:45,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853280487] [2022-10-15 17:12:45,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:12:45,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-15 17:12:45,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:45,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-15 17:12:45,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=807, Unknown=0, NotChecked=0, Total=1056 [2022-10-15 17:12:45,323 INFO L87 Difference]: Start difference. First operand 98 states and 138 transitions. Second operand has 33 states, 32 states have (on average 2.71875) internal successors, (87), 33 states have internal predecessors, (87), 26 states have call successors, (29), 1 states have call predecessors, (29), 14 states have return successors, (43), 20 states have call predecessors, (43), 26 states have call successors, (43) [2022-10-15 17:12:45,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:45,824 INFO L93 Difference]: Finished difference Result 107 states and 145 transitions. [2022-10-15 17:12:45,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-15 17:12:45,825 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.71875) internal successors, (87), 33 states have internal predecessors, (87), 26 states have call successors, (29), 1 states have call predecessors, (29), 14 states have return successors, (43), 20 states have call predecessors, (43), 26 states have call successors, (43) Word has length 351 [2022-10-15 17:12:45,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:45,825 INFO L225 Difference]: With dead ends: 107 [2022-10-15 17:12:45,826 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 17:12:45,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 834 GetRequests, 783 SyntacticMatches, 9 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=469, Invalid=1423, Unknown=0, NotChecked=0, Total=1892 [2022-10-15 17:12:45,827 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 116 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:45,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 173 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:12:45,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 17:12:45,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 17:12:45,828 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 17:12:45,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 17:12:45,828 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 351 [2022-10-15 17:12:45,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:45,829 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 17:12:45,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.71875) internal successors, (87), 33 states have internal predecessors, (87), 26 states have call successors, (29), 1 states have call predecessors, (29), 14 states have return successors, (43), 20 states have call predecessors, (43), 26 states have call successors, (43) [2022-10-15 17:12:45,829 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 17:12:45,829 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 17:12:45,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-10-15 17:12:45,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-10-15 17:12:45,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-15 17:12:46,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-15 17:12:46,053 INFO L444 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1, 1] [2022-10-15 17:12:46,055 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 17:12:46,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 05:12:46 BoogieIcfgContainer [2022-10-15 17:12:46,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 17:12:46,059 INFO L158 Benchmark]: Toolchain (without parser) took 33446.93ms. Allocated memory was 152.0MB in the beginning and 457.2MB in the end (delta: 305.1MB). Free memory was 125.7MB in the beginning and 226.5MB in the end (delta: -100.7MB). Peak memory consumption was 205.4MB. Max. memory is 8.0GB. [2022-10-15 17:12:46,059 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 152.0MB. Free memory was 121.6MB in the beginning and 121.5MB in the end (delta: 84.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 17:12:46,060 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.64ms. Allocated memory is still 152.0MB. Free memory was 125.5MB in the beginning and 116.1MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-15 17:12:46,060 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.64ms. Allocated memory is still 152.0MB. Free memory was 116.1MB in the beginning and 114.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 17:12:46,060 INFO L158 Benchmark]: Boogie Preprocessor took 24.02ms. Allocated memory is still 152.0MB. Free memory was 114.7MB in the beginning and 113.8MB in the end (delta: 960.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 17:12:46,061 INFO L158 Benchmark]: RCFGBuilder took 429.07ms. Allocated memory is still 152.0MB. Free memory was 113.7MB in the beginning and 104.4MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-15 17:12:46,061 INFO L158 Benchmark]: TraceAbstraction took 32614.76ms. Allocated memory was 152.0MB in the beginning and 457.2MB in the end (delta: 305.1MB). Free memory was 103.8MB in the beginning and 226.5MB in the end (delta: -122.7MB). Peak memory consumption was 183.4MB. Max. memory is 8.0GB. [2022-10-15 17:12:46,063 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 152.0MB. Free memory was 121.6MB in the beginning and 121.5MB in the end (delta: 84.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 320.64ms. Allocated memory is still 152.0MB. Free memory was 125.5MB in the beginning and 116.1MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.64ms. Allocated memory is still 152.0MB. Free memory was 116.1MB in the beginning and 114.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.02ms. Allocated memory is still 152.0MB. Free memory was 114.7MB in the beginning and 113.8MB in the end (delta: 960.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 429.07ms. Allocated memory is still 152.0MB. Free memory was 113.7MB in the beginning and 104.4MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 32614.76ms. Allocated memory was 152.0MB in the beginning and 457.2MB in the end (delta: 305.1MB). Free memory was 103.8MB in the beginning and 226.5MB in the end (delta: -122.7MB). Peak memory consumption was 183.4MB. 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: 29]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 25]: 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 2 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 32.5s, OverallIterations: 11, TraceHistogramMax: 51, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 667 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 604 mSDsluCounter, 1662 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1395 mSDsCounter, 712 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2375 IncrementalHoareTripleChecker+Invalid, 3087 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 712 mSolverCounterUnsat, 267 mSDtfsCounter, 2375 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3278 GetRequests, 2975 SyntacticMatches, 82 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2924 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=195occurred in iteration=7, InterpolantAutomatonStates: 151, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 45 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 25.8s InterpolantComputationTime, 2895 NumberOfCodeBlocks, 2801 NumberOfCodeBlocksAsserted, 102 NumberOfCheckSat, 4163 ConstructedInterpolants, 0 QuantifiedInterpolants, 9249 SizeOfPredicates, 36 NumberOfNonLiveVariables, 2793 ConjunctsInSsa, 251 ConjunctsInUnsatCore, 27 InterpolantComputations, 3 PerfectInterpolantSequences, 49554/63815 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 17:12:46,111 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...