/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/sum_non_eq-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:13:41,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:13:41,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:13:41,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:13:41,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:13:41,961 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:13:41,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:13:41,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:13:41,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:13:41,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:13:41,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:13:41,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:13:41,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:13:41,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:13:41,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:13:41,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:13:41,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:13:41,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:13:41,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:13:41,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:13:41,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:13:42,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:13:42,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:13:42,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:13:42,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:13:42,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:13:42,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:13:42,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:13:42,034 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 17:13:42,092 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:13:42,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:13:42,092 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:13:42,093 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:13:42,094 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:13:42,094 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:13:42,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:13:42,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:13:42,095 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:13:42,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:13:42,096 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:13:42,096 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:13:42,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:13:42,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:13:42,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:13:42,097 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:13:42,097 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:13:42,097 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:13:42,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:13:42,098 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:13:42,098 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:13:42,098 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:13:42,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:13:42,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:13:42,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:13:42,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:13:42,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:13:42,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:13:42,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:13:42,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:13:42,101 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:13:42,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:13:42,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:13:42,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:13:42,567 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:13:42,568 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:13:42,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/sum_non_eq-2.c [2022-10-15 17:13:42,639 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68ced04ed/12e4632bf1644948b0d8e71b666d27d7/FLAG5941bd19b [2022-10-15 17:13:43,250 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:13:43,250 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/sum_non_eq-2.c [2022-10-15 17:13:43,257 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68ced04ed/12e4632bf1644948b0d8e71b666d27d7/FLAG5941bd19b [2022-10-15 17:13:43,630 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68ced04ed/12e4632bf1644948b0d8e71b666d27d7 [2022-10-15 17:13:43,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:13:43,638 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:13:43,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:13:43,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:13:43,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:13:43,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:13:43" (1/1) ... [2022-10-15 17:13:43,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7217164d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:13:43, skipping insertion in model container [2022-10-15 17:13:43,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:13:43" (1/1) ... [2022-10-15 17:13:43,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:13:43,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:13:43,832 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/sum_non_eq-2.c[628,641] [2022-10-15 17:13:43,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:13:43,846 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:13:43,862 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/sum_non_eq-2.c[628,641] [2022-10-15 17:13:43,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:13:43,878 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:13:43,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:13:43 WrapperNode [2022-10-15 17:13:43,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:13:43,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:13:43,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:13:43,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:13:43,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:13:43" (1/1) ... [2022-10-15 17:13:43,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:13:43" (1/1) ... [2022-10-15 17:13:43,915 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-10-15 17:13:43,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:13:43,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:13:43,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:13:43,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:13:43,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:13:43" (1/1) ... [2022-10-15 17:13:43,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:13:43" (1/1) ... [2022-10-15 17:13:43,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:13:43" (1/1) ... [2022-10-15 17:13:43,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:13:43" (1/1) ... [2022-10-15 17:13:43,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:13:43" (1/1) ... [2022-10-15 17:13:43,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:13:43" (1/1) ... [2022-10-15 17:13:43,934 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:13:43" (1/1) ... [2022-10-15 17:13:43,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:13:43" (1/1) ... [2022-10-15 17:13:43,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:13:43,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:13:43,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:13:43,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:13:43,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:13:43" (1/1) ... [2022-10-15 17:13:43,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:13:43,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:13:43,979 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 17:13:44,000 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 17:13:44,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:13:44,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:13:44,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:13:44,040 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2022-10-15 17:13:44,040 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2022-10-15 17:13:44,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:13:44,112 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:13:44,114 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:13:44,239 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:13:44,246 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:13:44,247 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 17:13:44,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:13:44 BoogieIcfgContainer [2022-10-15 17:13:44,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:13:44,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:13:44,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:13:44,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:13:44,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:13:43" (1/3) ... [2022-10-15 17:13:44,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455e8b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:13:44, skipping insertion in model container [2022-10-15 17:13:44,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:13:43" (2/3) ... [2022-10-15 17:13:44,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455e8b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:13:44, skipping insertion in model container [2022-10-15 17:13:44,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:13:44" (3/3) ... [2022-10-15 17:13:44,260 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_non_eq-2.c [2022-10-15 17:13:44,284 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:13:44,285 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:13:44,343 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:13:44,353 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;@3a76bcdf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:13:44,353 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:13:44,358 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 17:13:44,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 17:13:44,368 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:13:44,369 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:13:44,370 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:13:44,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:13:44,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1993088021, now seen corresponding path program 1 times [2022-10-15 17:13:44,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:13:44,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043020204] [2022-10-15 17:13:44,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:13:44,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:13:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:13:45,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:13:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:13:45,464 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 17:13:45,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:13:45,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043020204] [2022-10-15 17:13:45,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043020204] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:13:45,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:13:45,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:13:45,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321654071] [2022-10-15 17:13:45,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:13:45,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:13:45,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:13:45,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:13:45,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:13:45,523 INFO L87 Difference]: Start difference. First operand has 17 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 6 states have (on average 1.3333333333333333) 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 17:13:45,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:13:45,653 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2022-10-15 17:13:45,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:13:45,659 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) 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 17:13:45,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:13:45,670 INFO L225 Difference]: With dead ends: 25 [2022-10-15 17:13:45,671 INFO L226 Difference]: Without dead ends: 21 [2022-10-15 17:13:45,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:13:45,684 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:13:45,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 43 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:13:45,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-10-15 17:13:45,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2022-10-15 17:13:45,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 17:13:45,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-10-15 17:13:45,746 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 10 [2022-10-15 17:13:45,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:13:45,747 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-10-15 17:13:45,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) 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 17:13:45,749 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-10-15 17:13:45,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 17:13:45,751 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:13:45,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:13:45,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:13:45,752 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:13:45,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:13:45,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1993087861, now seen corresponding path program 1 times [2022-10-15 17:13:45,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:13:45,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102340937] [2022-10-15 17:13:45,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:13:45,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:13:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:13:45,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:13:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:13:45,821 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 17:13:45,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:13:45,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102340937] [2022-10-15 17:13:45,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102340937] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:13:45,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:13:45,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:13:45,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542466488] [2022-10-15 17:13:45,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:13:45,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:13:45,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:13:45,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:13:45,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:13:45,827 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 17:13:45,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:13:45,833 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-10-15 17:13:45,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:13:45,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-10-15 17:13:45,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:13:45,835 INFO L225 Difference]: With dead ends: 18 [2022-10-15 17:13:45,835 INFO L226 Difference]: Without dead ends: 15 [2022-10-15 17:13:45,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:13:45,837 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 22 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 17:13:45,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 22 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:13:45,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-10-15 17:13:45,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-10-15 17:13:45,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-15 17:13:45,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-10-15 17:13:45,844 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2022-10-15 17:13:45,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:13:45,845 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-10-15 17:13:45,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 17:13:45,846 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-10-15 17:13:45,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-15 17:13:45,847 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:13:45,847 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:13:45,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:13:45,848 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:13:45,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:13:45,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1131436075, now seen corresponding path program 1 times [2022-10-15 17:13:45,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:13:45,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610288523] [2022-10-15 17:13:45,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:13:45,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:13:45,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:13:46,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:13:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:13:46,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:13:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:13:46,548 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:13:46,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:13:46,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610288523] [2022-10-15 17:13:46,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610288523] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:13:46,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823071142] [2022-10-15 17:13:46,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:13:46,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:13:46,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:13:46,557 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 17:13:46,581 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 17:13:46,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:13:46,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-15 17:13:46,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:13:47,073 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:13:47,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:13:47,524 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 17:13:47,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823071142] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:13:47,525 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:13:47,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 16 [2022-10-15 17:13:47,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033668750] [2022-10-15 17:13:47,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:13:47,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-15 17:13:47,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:13:47,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-15 17:13:47,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:13:47,536 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 16 states, 15 states have (on average 1.4) internal successors, (21), 12 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-10-15 17:13:47,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:13:47,772 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2022-10-15 17:13:47,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-15 17:13:47,773 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.4) internal successors, (21), 12 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 16 [2022-10-15 17:13:47,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:13:47,774 INFO L225 Difference]: With dead ends: 18 [2022-10-15 17:13:47,774 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 17:13:47,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2022-10-15 17:13:47,776 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:13:47,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 40 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:13:47,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 17:13:47,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 17:13:47,778 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 17:13:47,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 17:13:47,779 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2022-10-15 17:13:47,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:13:47,779 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 17:13:47,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.4) internal successors, (21), 12 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-10-15 17:13:47,780 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 17:13:47,780 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 17:13:47,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-10-15 17:13:47,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-10-15 17:13:47,821 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-15 17:13:47,997 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 17:13:48,002 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-10-15 17:13:48,005 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 17:13:48,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 05:13:48 BoogieIcfgContainer [2022-10-15 17:13:48,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 17:13:48,010 INFO L158 Benchmark]: Toolchain (without parser) took 4375.39ms. Allocated memory was 156.2MB in the beginning and 199.2MB in the end (delta: 43.0MB). Free memory was 130.7MB in the beginning and 103.1MB in the end (delta: 27.6MB). Peak memory consumption was 72.1MB. Max. memory is 8.0GB. [2022-10-15 17:13:48,010 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 156.2MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 17:13:48,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.40ms. Allocated memory is still 156.2MB. Free memory was 130.5MB in the beginning and 121.2MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-15 17:13:48,012 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.47ms. Allocated memory is still 156.2MB. Free memory was 121.1MB in the beginning and 119.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 17:13:48,012 INFO L158 Benchmark]: Boogie Preprocessor took 24.47ms. Allocated memory is still 156.2MB. Free memory was 119.6MB in the beginning and 118.7MB in the end (delta: 963.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 17:13:48,013 INFO L158 Benchmark]: RCFGBuilder took 307.60ms. Allocated memory is still 156.2MB. Free memory was 118.7MB in the beginning and 109.0MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-15 17:13:48,014 INFO L158 Benchmark]: TraceAbstraction took 3757.22ms. Allocated memory was 156.2MB in the beginning and 199.2MB in the end (delta: 43.0MB). Free memory was 108.3MB in the beginning and 103.1MB in the end (delta: 5.3MB). Peak memory consumption was 49.1MB. Max. memory is 8.0GB. [2022-10-15 17:13:48,017 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 156.2MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 237.40ms. Allocated memory is still 156.2MB. Free memory was 130.5MB in the beginning and 121.2MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.47ms. Allocated memory is still 156.2MB. Free memory was 121.1MB in the beginning and 119.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.47ms. Allocated memory is still 156.2MB. Free memory was 119.6MB in the beginning and 118.7MB in the end (delta: 963.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 307.60ms. Allocated memory is still 156.2MB. Free memory was 118.7MB in the beginning and 109.0MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 3757.22ms. Allocated memory was 156.2MB in the beginning and 199.2MB in the end (delta: 43.0MB). Free memory was 108.3MB in the beginning and 103.1MB in the end (delta: 5.3MB). Peak memory consumption was 49.1MB. 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: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 14]: 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 105 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 71 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 129 IncrementalHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 34 mSDtfsCounter, 129 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=1, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 637 SizeOfPredicates, 8 NumberOfNonLiveVariables, 63 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 5/12 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 17:13:48,066 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...