/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_2calls_10-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:11:03,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:11:03,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:11:03,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:11:03,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:11:03,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:11:03,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:11:03,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:11:03,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:11:03,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:11:03,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:11:03,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:11:03,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:11:03,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:11:03,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:11:03,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:11:03,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:11:03,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:11:03,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:11:03,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:11:03,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:11:03,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:11:03,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:11:03,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:11:03,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:11:03,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:11:03,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:11:03,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:11:03,183 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 17:11:03,240 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:11:03,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:11:03,242 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:11:03,242 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:11:03,243 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:11:03,244 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:11:03,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:11:03,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:11:03,247 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:11:03,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:11:03,247 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:11:03,248 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:11:03,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:11:03,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:11:03,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:11:03,248 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:11:03,249 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:11:03,249 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:11:03,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:11:03,249 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:11:03,249 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:11:03,250 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:11:03,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:11:03,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:11:03,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:11:03,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:11:03,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:11:03,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:11:03,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:11:03,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:11:03,252 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:11:03,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:11:03,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:11:03,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:11:03,663 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:11:03,664 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:11:03,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_2calls_10-2.c [2022-10-15 17:11:03,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2ccf6e13/55b0b7a6e39d4bef9690e77a2e42b7fd/FLAG619820e4b [2022-10-15 17:11:04,368 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:11:04,369 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_10-2.c [2022-10-15 17:11:04,377 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2ccf6e13/55b0b7a6e39d4bef9690e77a2e42b7fd/FLAG619820e4b [2022-10-15 17:11:04,750 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2ccf6e13/55b0b7a6e39d4bef9690e77a2e42b7fd [2022-10-15 17:11:04,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:11:04,759 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:11:04,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:11:04,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:11:04,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:11:04,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:11:04" (1/1) ... [2022-10-15 17:11:04,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7512639f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:04, skipping insertion in model container [2022-10-15 17:11:04,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:11:04" (1/1) ... [2022-10-15 17:11:04,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:11:04,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:11:04,959 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_2calls_10-2.c[949,962] [2022-10-15 17:11:04,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:11:04,973 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:11:04,993 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_2calls_10-2.c[949,962] [2022-10-15 17:11:04,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:11:05,010 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:11:05,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:05 WrapperNode [2022-10-15 17:11:05,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:11:05,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:11:05,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:11:05,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:11:05,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:05" (1/1) ... [2022-10-15 17:11:05,029 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:05" (1/1) ... [2022-10-15 17:11:05,048 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-10-15 17:11:05,049 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:11:05,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:11:05,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:11:05,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:11:05,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:05" (1/1) ... [2022-10-15 17:11:05,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:05" (1/1) ... [2022-10-15 17:11:05,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:05" (1/1) ... [2022-10-15 17:11:05,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:05" (1/1) ... [2022-10-15 17:11:05,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:05" (1/1) ... [2022-10-15 17:11:05,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:05" (1/1) ... [2022-10-15 17:11:05,070 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:05" (1/1) ... [2022-10-15 17:11:05,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:05" (1/1) ... [2022-10-15 17:11:05,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:11:05,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:11:05,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:11:05,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:11:05,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:05" (1/1) ... [2022-10-15 17:11:05,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:11:05,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:05,121 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 17:11:05,148 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 17:11:05,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:11:05,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:11:05,194 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2022-10-15 17:11:05,194 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2022-10-15 17:11:05,194 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2022-10-15 17:11:05,194 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2022-10-15 17:11:05,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:11:05,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:11:05,270 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:11:05,273 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:11:05,427 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:11:05,435 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:11:05,436 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 17:11:05,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:11:05 BoogieIcfgContainer [2022-10-15 17:11:05,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:11:05,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:11:05,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:11:05,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:11:05,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:11:04" (1/3) ... [2022-10-15 17:11:05,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed41022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:11:05, skipping insertion in model container [2022-10-15 17:11:05,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:05" (2/3) ... [2022-10-15 17:11:05,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed41022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:11:05, skipping insertion in model container [2022-10-15 17:11:05,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:11:05" (3/3) ... [2022-10-15 17:11:05,450 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_2calls_10-2.c [2022-10-15 17:11:05,482 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:11:05,483 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:11:05,587 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:11:05,598 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;@237cbb71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:11:05,598 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:11:05,604 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 20 states have (on average 1.35) internal successors, (27), 22 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-15 17:11:05,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 17:11:05,614 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:05,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:05,616 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:05,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:05,624 INFO L85 PathProgramCache]: Analyzing trace with hash -511770027, now seen corresponding path program 1 times [2022-10-15 17:11:05,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:05,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136903939] [2022-10-15 17:11:05,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:05,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:06,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:06,197 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 17:11:06,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:06,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136903939] [2022-10-15 17:11:06,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136903939] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:11:06,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:11:06,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:11:06,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565599221] [2022-10-15 17:11:06,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:11:06,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:11:06,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:06,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:11:06,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:11:06,246 INFO L87 Difference]: Start difference. First operand has 30 states, 20 states have (on average 1.35) internal successors, (27), 22 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 17:11:06,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:06,307 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2022-10-15 17:11:06,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:11:06,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-10-15 17:11:06,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:06,320 INFO L225 Difference]: With dead ends: 39 [2022-10-15 17:11:06,320 INFO L226 Difference]: Without dead ends: 35 [2022-10-15 17:11:06,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:11:06,327 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 5 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:06,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 127 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:11:06,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-10-15 17:11:06,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2022-10-15 17:11:06,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 23 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2022-10-15 17:11:06,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2022-10-15 17:11:06,378 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 10 [2022-10-15 17:11:06,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:06,379 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2022-10-15 17:11:06,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 17:11:06,380 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2022-10-15 17:11:06,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 17:11:06,382 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:06,382 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:06,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:11:06,383 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:06,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:06,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1315003323, now seen corresponding path program 1 times [2022-10-15 17:11:06,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:06,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370811764] [2022-10-15 17:11:06,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:06,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:06,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:06,433 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 17:11:06,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:06,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370811764] [2022-10-15 17:11:06,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370811764] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:11:06,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:11:06,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:11:06,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229459718] [2022-10-15 17:11:06,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:11:06,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:11:06,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:06,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:11:06,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:11:06,438 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 17:11:06,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:06,447 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2022-10-15 17:11:06,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:11:06,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 17:11:06,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:06,449 INFO L225 Difference]: With dead ends: 31 [2022-10-15 17:11:06,449 INFO L226 Difference]: Without dead ends: 27 [2022-10-15 17:11:06,450 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 17:11:06,451 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 2 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 57 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 17:11:06,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 57 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:11:06,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-10-15 17:11:06,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-10-15 17:11:06,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-10-15 17:11:06,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2022-10-15 17:11:06,461 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 11 [2022-10-15 17:11:06,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:06,462 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2022-10-15 17:11:06,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 17:11:06,462 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2022-10-15 17:11:06,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 17:11:06,463 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:06,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:06,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:11:06,464 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:06,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:06,464 INFO L85 PathProgramCache]: Analyzing trace with hash 2030187948, now seen corresponding path program 1 times [2022-10-15 17:11:06,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:06,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128913398] [2022-10-15 17:11:06,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:06,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:06,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:06,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:11:06,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:06,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128913398] [2022-10-15 17:11:06,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128913398] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:11:06,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:11:06,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:11:06,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220755953] [2022-10-15 17:11:06,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:11:06,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:11:06,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:06,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:11:06,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:11:06,618 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 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 17:11:06,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:06,657 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2022-10-15 17:11:06,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:11:06,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 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 17:11:06,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:06,660 INFO L225 Difference]: With dead ends: 31 [2022-10-15 17:11:06,660 INFO L226 Difference]: Without dead ends: 29 [2022-10-15 17:11:06,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:11:06,662 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:06,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:11:06,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-10-15 17:11:06,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-10-15 17:11:06,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-10-15 17:11:06,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2022-10-15 17:11:06,672 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 11 [2022-10-15 17:11:06,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:06,672 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2022-10-15 17:11:06,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 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 17:11:06,673 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2022-10-15 17:11:06,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 17:11:06,674 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:06,675 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:06,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:11:06,675 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:06,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:06,676 INFO L85 PathProgramCache]: Analyzing trace with hash 610996755, now seen corresponding path program 1 times [2022-10-15 17:11:06,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:06,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231904943] [2022-10-15 17:11:06,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:06,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:06,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:06,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:06,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 17:11:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:06,880 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 17:11:06,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:06,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231904943] [2022-10-15 17:11:06,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231904943] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:06,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493109234] [2022-10-15 17:11:06,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:06,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:06,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:06,884 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 17:11:06,892 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 17:11:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:06,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 17:11:06,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:07,139 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 17:11:07,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:07,454 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 17:11:07,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493109234] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:07,455 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:07,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13 [2022-10-15 17:11:07,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784142469] [2022-10-15 17:11:07,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:07,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 17:11:07,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:07,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 17:11:07,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:11:07,468 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 13 states, 10 states have (on average 3.2) internal successors, (32), 13 states have internal predecessors, (32), 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 17:11:07,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:07,684 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2022-10-15 17:11:07,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 17:11:07,684 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 3.2) internal successors, (32), 13 states have internal predecessors, (32), 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 17:11:07,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:07,686 INFO L225 Difference]: With dead ends: 31 [2022-10-15 17:11:07,686 INFO L226 Difference]: Without dead ends: 31 [2022-10-15 17:11:07,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-10-15 17:11:07,689 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 51 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:07,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 68 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:11:07,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-10-15 17:11:07,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2022-10-15 17:11:07,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-10-15 17:11:07,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2022-10-15 17:11:07,698 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 23 [2022-10-15 17:11:07,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:07,699 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2022-10-15 17:11:07,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 3.2) internal successors, (32), 13 states have internal predecessors, (32), 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 17:11:07,699 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2022-10-15 17:11:07,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 17:11:07,701 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:07,701 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:07,743 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 17:11:07,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:07,915 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:07,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:07,917 INFO L85 PathProgramCache]: Analyzing trace with hash 2035188206, now seen corresponding path program 1 times [2022-10-15 17:11:07,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:07,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479765500] [2022-10-15 17:11:07,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:07,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:07,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:08,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:08,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:08,125 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 17:11:08,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:08,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479765500] [2022-10-15 17:11:08,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479765500] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:08,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663519370] [2022-10-15 17:11:08,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:08,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:08,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:08,146 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 17:11:08,166 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 17:11:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:08,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 17:11:08,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:08,280 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 17:11:08,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:08,486 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 17:11:08,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663519370] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:08,486 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:08,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2022-10-15 17:11:08,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485482635] [2022-10-15 17:11:08,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:08,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 17:11:08,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:08,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 17:11:08,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:11:08,489 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 13 states have internal predecessors, (32), 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 17:11:08,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:08,687 INFO L93 Difference]: Finished difference Result 47 states and 67 transitions. [2022-10-15 17:11:08,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 17:11:08,688 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 13 states have internal predecessors, (32), 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 17:11:08,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:08,691 INFO L225 Difference]: With dead ends: 47 [2022-10-15 17:11:08,691 INFO L226 Difference]: Without dead ends: 47 [2022-10-15 17:11:08,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-10-15 17:11:08,693 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 29 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:08,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 101 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:11:08,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-10-15 17:11:08,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2022-10-15 17:11:08,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 31 states have internal predecessors, (38), 9 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2022-10-15 17:11:08,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 62 transitions. [2022-10-15 17:11:08,706 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 62 transitions. Word has length 24 [2022-10-15 17:11:08,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:08,707 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 62 transitions. [2022-10-15 17:11:08,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 13 states have internal predecessors, (32), 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 17:11:08,708 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 62 transitions. [2022-10-15 17:11:08,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-15 17:11:08,710 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:08,710 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:08,753 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 17:11:08,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:08,926 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:08,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:08,927 INFO L85 PathProgramCache]: Analyzing trace with hash 716039159, now seen corresponding path program 1 times [2022-10-15 17:11:08,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:08,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958820332] [2022-10-15 17:11:08,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:08,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:08,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:09,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:09,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:09,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 17:11:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:09,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 17:11:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:09,116 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 17:11:09,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:09,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958820332] [2022-10-15 17:11:09,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958820332] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:09,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830245337] [2022-10-15 17:11:09,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:09,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:09,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:09,120 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 17:11:09,132 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 17:11:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:09,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 17:11:09,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:09,317 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:11:09,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:09,720 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 17:11:09,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830245337] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:09,721 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:09,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 15 [2022-10-15 17:11:09,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055234862] [2022-10-15 17:11:09,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:09,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-15 17:11:09,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:09,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-15 17:11:09,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-10-15 17:11:09,730 INFO L87 Difference]: Start difference. First operand 45 states and 62 transitions. Second operand has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 11 states have call successors, (13), 1 states have call predecessors, (13), 5 states have return successors, (13), 3 states have call predecessors, (13), 11 states have call successors, (13) [2022-10-15 17:11:09,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:09,979 INFO L93 Difference]: Finished difference Result 63 states and 92 transitions. [2022-10-15 17:11:09,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-15 17:11:09,980 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 11 states have call successors, (13), 1 states have call predecessors, (13), 5 states have return successors, (13), 3 states have call predecessors, (13), 11 states have call successors, (13) Word has length 36 [2022-10-15 17:11:09,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:09,982 INFO L225 Difference]: With dead ends: 63 [2022-10-15 17:11:09,982 INFO L226 Difference]: Without dead ends: 63 [2022-10-15 17:11:09,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 76 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2022-10-15 17:11:09,984 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 57 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:09,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 93 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:11:09,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-10-15 17:11:09,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-10-15 17:11:09,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 44 states have internal predecessors, (51), 12 states have call successors, (12), 5 states have call predecessors, (12), 9 states have return successors, (29), 13 states have call predecessors, (29), 12 states have call successors, (29) [2022-10-15 17:11:09,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 92 transitions. [2022-10-15 17:11:09,999 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 92 transitions. Word has length 36 [2022-10-15 17:11:09,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:10,000 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 92 transitions. [2022-10-15 17:11:10,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 11 states have call successors, (13), 1 states have call predecessors, (13), 5 states have return successors, (13), 3 states have call predecessors, (13), 11 states have call successors, (13) [2022-10-15 17:11:10,000 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 92 transitions. [2022-10-15 17:11:10,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-15 17:11:10,003 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:10,003 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:10,045 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 17:11:10,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:10,219 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:10,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:10,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1375469090, now seen corresponding path program 1 times [2022-10-15 17:11:10,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:10,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716876804] [2022-10-15 17:11:10,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:10,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:10,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:10,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:10,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:10,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:10,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:10,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:10,472 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-15 17:11:10,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:10,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716876804] [2022-10-15 17:11:10,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716876804] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:10,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583283163] [2022-10-15 17:11:10,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:10,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:10,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:10,475 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 17:11:10,513 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 17:11:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:10,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 17:11:10,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:10,631 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 17:11:10,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:10,951 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 17:11:10,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583283163] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:10,952 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:10,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 18 [2022-10-15 17:11:10,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137722004] [2022-10-15 17:11:10,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:10,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-15 17:11:10,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:10,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-15 17:11:10,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-10-15 17:11:10,954 INFO L87 Difference]: Start difference. First operand 63 states and 92 transitions. Second operand has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 11 states have call successors, (13), 1 states have call predecessors, (13), 7 states have return successors, (13), 6 states have call predecessors, (13), 11 states have call successors, (13) [2022-10-15 17:11:11,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:11,330 INFO L93 Difference]: Finished difference Result 117 states and 195 transitions. [2022-10-15 17:11:11,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-15 17:11:11,330 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 11 states have call successors, (13), 1 states have call predecessors, (13), 7 states have return successors, (13), 6 states have call predecessors, (13), 11 states have call successors, (13) Word has length 37 [2022-10-15 17:11:11,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:11,334 INFO L225 Difference]: With dead ends: 117 [2022-10-15 17:11:11,334 INFO L226 Difference]: Without dead ends: 117 [2022-10-15 17:11:11,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 78 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=530, Unknown=0, NotChecked=0, Total=650 [2022-10-15 17:11:11,336 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 53 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:11,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 204 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:11:11,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-10-15 17:11:11,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 103. [2022-10-15 17:11:11,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 66 states have (on average 1.2121212121212122) internal successors, (80), 69 states have internal predecessors, (80), 21 states have call successors, (21), 7 states have call predecessors, (21), 15 states have return successors, (65), 26 states have call predecessors, (65), 21 states have call successors, (65) [2022-10-15 17:11:11,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 166 transitions. [2022-10-15 17:11:11,362 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 166 transitions. Word has length 37 [2022-10-15 17:11:11,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:11,362 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 166 transitions. [2022-10-15 17:11:11,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 11 states have call successors, (13), 1 states have call predecessors, (13), 7 states have return successors, (13), 6 states have call predecessors, (13), 11 states have call successors, (13) [2022-10-15 17:11:11,363 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 166 transitions. [2022-10-15 17:11:11,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-15 17:11:11,368 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:11,368 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:11,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 17:11:11,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:11,583 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:11,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:11,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1808172135, now seen corresponding path program 1 times [2022-10-15 17:11:11,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:11,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64813590] [2022-10-15 17:11:11,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:11,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:11,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:11,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:11,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:11,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:11,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:11,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:11,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:11,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:11,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:11:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:11,912 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-10-15 17:11:11,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:11,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64813590] [2022-10-15 17:11:11,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64813590] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:11,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638522326] [2022-10-15 17:11:11,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:11,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:11,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:11,914 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 17:11:11,936 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 17:11:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:11,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-15 17:11:11,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:12,072 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-15 17:11:12,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:12,654 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-15 17:11:12,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638522326] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:12,655 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:12,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 11] total 20 [2022-10-15 17:11:12,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108345299] [2022-10-15 17:11:12,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:12,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-15 17:11:12,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:12,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-15 17:11:12,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2022-10-15 17:11:12,657 INFO L87 Difference]: Start difference. First operand 103 states and 166 transitions. Second operand has 20 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 20 states have internal predecessors, (60), 14 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (18), 7 states have call predecessors, (18), 14 states have call successors, (18) [2022-10-15 17:11:13,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:13,115 INFO L93 Difference]: Finished difference Result 155 states and 272 transitions. [2022-10-15 17:11:13,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-15 17:11:13,116 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 20 states have internal predecessors, (60), 14 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (18), 7 states have call predecessors, (18), 14 states have call successors, (18) Word has length 51 [2022-10-15 17:11:13,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:13,119 INFO L225 Difference]: With dead ends: 155 [2022-10-15 17:11:13,120 INFO L226 Difference]: Without dead ends: 155 [2022-10-15 17:11:13,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 110 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=662, Unknown=0, NotChecked=0, Total=812 [2022-10-15 17:11:13,121 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 76 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:13,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 203 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:11:13,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-10-15 17:11:13,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 109. [2022-10-15 17:11:13,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 72 states have internal predecessors, (87), 24 states have call successors, (24), 9 states have call predecessors, (24), 13 states have return successors, (66), 27 states have call predecessors, (66), 24 states have call successors, (66) [2022-10-15 17:11:13,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 177 transitions. [2022-10-15 17:11:13,149 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 177 transitions. Word has length 51 [2022-10-15 17:11:13,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:13,149 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 177 transitions. [2022-10-15 17:11:13,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 20 states have internal predecessors, (60), 14 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (18), 7 states have call predecessors, (18), 14 states have call successors, (18) [2022-10-15 17:11:13,150 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 177 transitions. [2022-10-15 17:11:13,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-15 17:11:13,155 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:13,155 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:13,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-15 17:11:13,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:13,369 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:13,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:13,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1122052341, now seen corresponding path program 1 times [2022-10-15 17:11:13,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:13,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378390423] [2022-10-15 17:11:13,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:13,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:13,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:13,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:13,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:13,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:13,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:13,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:13,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:13,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:13,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-15 17:11:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:13,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:13,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:13,755 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 39 proven. 38 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-10-15 17:11:13,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:13,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378390423] [2022-10-15 17:11:13,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378390423] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:13,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20262942] [2022-10-15 17:11:13,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:13,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:13,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:13,757 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 17:11:13,780 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 17:11:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:13,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-15 17:11:13,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:13,980 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 12 proven. 68 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-15 17:11:13,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:14,766 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 12 proven. 78 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-10-15 17:11:14,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20262942] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:14,766 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:14,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 13] total 24 [2022-10-15 17:11:14,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702896414] [2022-10-15 17:11:14,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:14,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-15 17:11:14,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:14,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-15 17:11:14,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2022-10-15 17:11:14,769 INFO L87 Difference]: Start difference. First operand 109 states and 177 transitions. Second operand has 24 states, 22 states have (on average 3.3636363636363638) internal successors, (74), 24 states have internal predecessors, (74), 18 states have call successors, (22), 1 states have call predecessors, (22), 9 states have return successors, (25), 11 states have call predecessors, (25), 18 states have call successors, (25) [2022-10-15 17:11:15,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:15,269 INFO L93 Difference]: Finished difference Result 137 states and 209 transitions. [2022-10-15 17:11:15,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-15 17:11:15,270 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 3.3636363636363638) internal successors, (74), 24 states have internal predecessors, (74), 18 states have call successors, (22), 1 states have call predecessors, (22), 9 states have return successors, (25), 11 states have call predecessors, (25), 18 states have call successors, (25) Word has length 79 [2022-10-15 17:11:15,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:15,274 INFO L225 Difference]: With dead ends: 137 [2022-10-15 17:11:15,274 INFO L226 Difference]: Without dead ends: 107 [2022-10-15 17:11:15,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 166 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=221, Invalid=1039, Unknown=0, NotChecked=0, Total=1260 [2022-10-15 17:11:15,282 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 100 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:15,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 189 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:11:15,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-10-15 17:11:15,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 84. [2022-10-15 17:11:15,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 57 states have (on average 1.1754385964912282) internal successors, (67), 58 states have internal predecessors, (67), 14 states have call successors, (14), 8 states have call predecessors, (14), 12 states have return successors, (35), 17 states have call predecessors, (35), 14 states have call successors, (35) [2022-10-15 17:11:15,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 116 transitions. [2022-10-15 17:11:15,320 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 116 transitions. Word has length 79 [2022-10-15 17:11:15,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:15,320 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 116 transitions. [2022-10-15 17:11:15,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 3.3636363636363638) internal successors, (74), 24 states have internal predecessors, (74), 18 states have call successors, (22), 1 states have call predecessors, (22), 9 states have return successors, (25), 11 states have call predecessors, (25), 18 states have call successors, (25) [2022-10-15 17:11:15,321 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 116 transitions. [2022-10-15 17:11:15,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-10-15 17:11:15,332 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:15,332 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:15,367 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 17:11:15,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:15,534 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:15,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:15,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1844874843, now seen corresponding path program 1 times [2022-10-15 17:11:15,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:15,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447147358] [2022-10-15 17:11:15,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:15,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:15,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:15,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:15,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:15,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:16,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:16,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:16,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:16,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:16,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:16,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:16,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-15 17:11:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:16,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:16,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:16,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:16,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:16,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:16,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:16,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-15 17:11:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:16,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:16,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:16,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:16,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:16,229 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 73 proven. 135 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2022-10-15 17:11:16,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:16,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447147358] [2022-10-15 17:11:16,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447147358] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:16,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004670085] [2022-10-15 17:11:16,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:16,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:16,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:16,231 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 17:11:16,253 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 17:11:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:16,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-15 17:11:16,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:16,475 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 36 proven. 211 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2022-10-15 17:11:16,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:17,798 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 36 proven. 227 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-10-15 17:11:17,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004670085] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:17,798 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:17,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 15] total 26 [2022-10-15 17:11:17,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791794676] [2022-10-15 17:11:17,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:17,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-15 17:11:17,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:17,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-15 17:11:17,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2022-10-15 17:11:17,802 INFO L87 Difference]: Start difference. First operand 84 states and 116 transitions. Second operand has 26 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 26 states have internal predecessors, (82), 20 states have call successors, (25), 1 states have call predecessors, (25), 10 states have return successors, (32), 12 states have call predecessors, (32), 20 states have call successors, (32) [2022-10-15 17:11:18,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:18,397 INFO L93 Difference]: Finished difference Result 140 states and 216 transitions. [2022-10-15 17:11:18,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-15 17:11:18,398 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 26 states have internal predecessors, (82), 20 states have call successors, (25), 1 states have call predecessors, (25), 10 states have return successors, (32), 12 states have call predecessors, (32), 20 states have call successors, (32) Word has length 148 [2022-10-15 17:11:18,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:18,401 INFO L225 Difference]: With dead ends: 140 [2022-10-15 17:11:18,401 INFO L226 Difference]: Without dead ends: 134 [2022-10-15 17:11:18,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 320 SyntacticMatches, 6 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=275, Invalid=1285, Unknown=0, NotChecked=0, Total=1560 [2022-10-15 17:11:18,403 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 105 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:18,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 238 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 17:11:18,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-10-15 17:11:18,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 114. [2022-10-15 17:11:18,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 77 states have (on average 1.2077922077922079) internal successors, (93), 78 states have internal predecessors, (93), 20 states have call successors, (20), 11 states have call predecessors, (20), 16 states have return successors, (56), 24 states have call predecessors, (56), 20 states have call successors, (56) [2022-10-15 17:11:18,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 169 transitions. [2022-10-15 17:11:18,417 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 169 transitions. Word has length 148 [2022-10-15 17:11:18,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:18,417 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 169 transitions. [2022-10-15 17:11:18,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 26 states have internal predecessors, (82), 20 states have call successors, (25), 1 states have call predecessors, (25), 10 states have return successors, (32), 12 states have call predecessors, (32), 20 states have call successors, (32) [2022-10-15 17:11:18,418 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 169 transitions. [2022-10-15 17:11:18,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-10-15 17:11:18,425 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:18,425 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 15, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 5, 5, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:18,465 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 17:11:18,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:18,640 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:18,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:18,641 INFO L85 PathProgramCache]: Analyzing trace with hash -776511890, now seen corresponding path program 1 times [2022-10-15 17:11:18,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:18,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305329805] [2022-10-15 17:11:18,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:18,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:18,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:19,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:19,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-15 17:11:19,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-15 17:11:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:19,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:20,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:20,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:20,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:20,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:20,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:20,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:20,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:20,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:20,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:20,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1780 backedges. 179 proven. 311 refuted. 0 times theorem prover too weak. 1290 trivial. 0 not checked. [2022-10-15 17:11:20,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:20,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305329805] [2022-10-15 17:11:20,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305329805] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:20,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684520661] [2022-10-15 17:11:20,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:20,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:20,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:20,035 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 17:11:20,039 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 17:11:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:20,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-15 17:11:20,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:20,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1780 backedges. 89 proven. 482 refuted. 0 times theorem prover too weak. 1209 trivial. 0 not checked. [2022-10-15 17:11:20,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:22,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1780 backedges. 89 proven. 506 refuted. 0 times theorem prover too weak. 1185 trivial. 0 not checked. [2022-10-15 17:11:22,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684520661] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:22,357 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:22,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 17] total 28 [2022-10-15 17:11:22,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482317800] [2022-10-15 17:11:22,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:22,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-15 17:11:22,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:22,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-15 17:11:22,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2022-10-15 17:11:22,365 INFO L87 Difference]: Start difference. First operand 114 states and 169 transitions. Second operand has 28 states, 26 states have (on average 3.5) internal successors, (91), 28 states have internal predecessors, (91), 22 states have call successors, (28), 1 states have call predecessors, (28), 11 states have return successors, (37), 14 states have call predecessors, (37), 22 states have call successors, (37) [2022-10-15 17:11:23,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:23,118 INFO L93 Difference]: Finished difference Result 156 states and 244 transitions. [2022-10-15 17:11:23,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-15 17:11:23,119 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 3.5) internal successors, (91), 28 states have internal predecessors, (91), 22 states have call successors, (28), 1 states have call predecessors, (28), 11 states have return successors, (37), 14 states have call predecessors, (37), 22 states have call successors, (37) Word has length 255 [2022-10-15 17:11:23,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:23,122 INFO L225 Difference]: With dead ends: 156 [2022-10-15 17:11:23,123 INFO L226 Difference]: Without dead ends: 155 [2022-10-15 17:11:23,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 563 SyntacticMatches, 7 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=342, Invalid=1638, Unknown=0, NotChecked=0, Total=1980 [2022-10-15 17:11:23,124 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 101 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:23,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 276 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 17:11:23,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-10-15 17:11:23,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 145. [2022-10-15 17:11:23,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 101 states have (on average 1.2376237623762376) internal successors, (125), 99 states have internal predecessors, (125), 26 states have call successors, (26), 18 states have call predecessors, (26), 17 states have return successors, (73), 27 states have call predecessors, (73), 26 states have call successors, (73) [2022-10-15 17:11:23,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 224 transitions. [2022-10-15 17:11:23,138 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 224 transitions. Word has length 255 [2022-10-15 17:11:23,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:23,139 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 224 transitions. [2022-10-15 17:11:23,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 3.5) internal successors, (91), 28 states have internal predecessors, (91), 22 states have call successors, (28), 1 states have call predecessors, (28), 11 states have return successors, (37), 14 states have call predecessors, (37), 22 states have call successors, (37) [2022-10-15 17:11:23,140 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 224 transitions. [2022-10-15 17:11:23,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-10-15 17:11:23,146 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:23,146 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 23, 23, 21, 20, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 10, 7, 5, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:23,185 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 17:11:23,360 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 17:11:23,361 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:23,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:23,362 INFO L85 PathProgramCache]: Analyzing trace with hash -184807700, now seen corresponding path program 2 times [2022-10-15 17:11:23,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:23,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759075319] [2022-10-15 17:11:23,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:23,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:23,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:24,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:24,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:24,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:24,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:24,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:24,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:24,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:24,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:24,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:24,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:24,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:24,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:24,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:24,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:24,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:24,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:24,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-15 17:11:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:24,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:24,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:24,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:24,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:24,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-10-15 17:11:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:25,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-10-15 17:11:25,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:25,172 INFO L134 CoverageAnalysis]: Checked inductivity of 3244 backedges. 239 proven. 509 refuted. 0 times theorem prover too weak. 2496 trivial. 0 not checked. [2022-10-15 17:11:25,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:25,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759075319] [2022-10-15 17:11:25,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759075319] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:25,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026136412] [2022-10-15 17:11:25,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 17:11:25,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:25,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:25,174 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:11:25,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-15 17:11:25,354 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 17:11:25,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 17:11:25,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-15 17:11:25,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:25,551 INFO L134 CoverageAnalysis]: Checked inductivity of 3244 backedges. 133 proven. 782 refuted. 0 times theorem prover too weak. 2329 trivial. 0 not checked. [2022-10-15 17:11:25,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:28,270 INFO L134 CoverageAnalysis]: Checked inductivity of 3244 backedges. 133 proven. 815 refuted. 0 times theorem prover too weak. 2296 trivial. 0 not checked. [2022-10-15 17:11:28,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026136412] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:28,271 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:28,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 19] total 30 [2022-10-15 17:11:28,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679196827] [2022-10-15 17:11:28,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:28,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-10-15 17:11:28,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:28,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-10-15 17:11:28,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=736, Unknown=0, NotChecked=0, Total=870 [2022-10-15 17:11:28,278 INFO L87 Difference]: Start difference. First operand 145 states and 224 transitions. Second operand has 30 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 30 states have internal predecessors, (97), 24 states have call successors, (30), 1 states have call predecessors, (30), 12 states have return successors, (40), 15 states have call predecessors, (40), 24 states have call successors, (40) [2022-10-15 17:11:29,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:29,153 INFO L93 Difference]: Finished difference Result 199 states and 320 transitions. [2022-10-15 17:11:29,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-10-15 17:11:29,154 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 30 states have internal predecessors, (97), 24 states have call successors, (30), 1 states have call predecessors, (30), 12 states have return successors, (40), 15 states have call predecessors, (40), 24 states have call successors, (40) Word has length 339 [2022-10-15 17:11:29,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:29,158 INFO L225 Difference]: With dead ends: 199 [2022-10-15 17:11:29,158 INFO L226 Difference]: Without dead ends: 197 [2022-10-15 17:11:29,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 809 GetRequests, 753 SyntacticMatches, 8 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=406, Invalid=2044, Unknown=0, NotChecked=0, Total=2450 [2022-10-15 17:11:29,160 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 144 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:29,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 250 Invalid, 1034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 17:11:29,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-10-15 17:11:29,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 173. [2022-10-15 17:11:29,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 122 states have (on average 1.2131147540983607) internal successors, (148), 118 states have internal predecessors, (148), 32 states have call successors, (32), 24 states have call predecessors, (32), 18 states have return successors, (92), 30 states have call predecessors, (92), 32 states have call successors, (92) [2022-10-15 17:11:29,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 272 transitions. [2022-10-15 17:11:29,192 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 272 transitions. Word has length 339 [2022-10-15 17:11:29,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:29,195 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 272 transitions. [2022-10-15 17:11:29,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 30 states have internal predecessors, (97), 24 states have call successors, (30), 1 states have call predecessors, (30), 12 states have return successors, (40), 15 states have call predecessors, (40), 24 states have call successors, (40) [2022-10-15 17:11:29,195 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 272 transitions. [2022-10-15 17:11:29,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2022-10-15 17:11:29,217 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:29,218 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 43, 43, 36, 35, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 15, 13, 8, 8, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:29,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-15 17:11:29,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:29,432 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:29,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:29,434 INFO L85 PathProgramCache]: Analyzing trace with hash -340826443, now seen corresponding path program 3 times [2022-10-15 17:11:29,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:29,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363911857] [2022-10-15 17:11:29,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:29,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:30,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:31,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:31,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:32,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:32,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:11:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-15 17:11:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:32,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:32,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-10-15 17:11:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:11:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-15 17:11:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-10-15 17:11:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:33,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:33,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:11:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:33,797 INFO L134 CoverageAnalysis]: Checked inductivity of 10385 backedges. 1639 proven. 1149 refuted. 0 times theorem prover too weak. 7597 trivial. 0 not checked. [2022-10-15 17:11:33,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:33,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363911857] [2022-10-15 17:11:33,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363911857] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:33,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331644572] [2022-10-15 17:11:33,797 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 17:11:33,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:33,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:33,799 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:11:33,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-15 17:11:33,972 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-15 17:11:33,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 17:11:33,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-15 17:11:33,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:34,118 INFO L134 CoverageAnalysis]: Checked inductivity of 10385 backedges. 932 proven. 138 refuted. 0 times theorem prover too weak. 9315 trivial. 0 not checked. [2022-10-15 17:11:34,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:35,652 INFO L134 CoverageAnalysis]: Checked inductivity of 10385 backedges. 934 proven. 146 refuted. 0 times theorem prover too weak. 9305 trivial. 0 not checked. [2022-10-15 17:11:35,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331644572] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:35,653 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:35,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 10, 13] total 39 [2022-10-15 17:11:35,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176480058] [2022-10-15 17:11:35,654 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:35,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-10-15 17:11:35,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:35,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-10-15 17:11:35,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1280, Unknown=0, NotChecked=0, Total=1482 [2022-10-15 17:11:35,657 INFO L87 Difference]: Start difference. First operand 173 states and 272 transitions. Second operand has 39 states, 37 states have (on average 2.8378378378378377) internal successors, (105), 39 states have internal predecessors, (105), 23 states have call successors, (36), 1 states have call predecessors, (36), 17 states have return successors, (47), 33 states have call predecessors, (47), 23 states have call successors, (47) [2022-10-15 17:11:36,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:36,895 INFO L93 Difference]: Finished difference Result 256 states and 389 transitions. [2022-10-15 17:11:36,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-10-15 17:11:36,897 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 37 states have (on average 2.8378378378378377) internal successors, (105), 39 states have internal predecessors, (105), 23 states have call successors, (36), 1 states have call predecessors, (36), 17 states have return successors, (47), 33 states have call predecessors, (47), 23 states have call successors, (47) Word has length 597 [2022-10-15 17:11:36,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:36,902 INFO L225 Difference]: With dead ends: 256 [2022-10-15 17:11:36,902 INFO L226 Difference]: Without dead ends: 251 [2022-10-15 17:11:36,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1418 GetRequests, 1351 SyntacticMatches, 6 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1370 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=528, Invalid=3378, Unknown=0, NotChecked=0, Total=3906 [2022-10-15 17:11:36,905 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 160 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:36,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 470 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-15 17:11:36,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-10-15 17:11:36,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 229. [2022-10-15 17:11:36,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 165 states have (on average 1.103030303030303) internal successors, (182), 157 states have internal predecessors, (182), 45 states have call successors, (45), 39 states have call predecessors, (45), 18 states have return successors, (103), 32 states have call predecessors, (103), 45 states have call successors, (103) [2022-10-15 17:11:36,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 330 transitions. [2022-10-15 17:11:36,935 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 330 transitions. Word has length 597 [2022-10-15 17:11:36,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:36,936 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 330 transitions. [2022-10-15 17:11:36,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 37 states have (on average 2.8378378378378377) internal successors, (105), 39 states have internal predecessors, (105), 23 states have call successors, (36), 1 states have call predecessors, (36), 17 states have return successors, (47), 33 states have call predecessors, (47), 23 states have call successors, (47) [2022-10-15 17:11:36,936 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 330 transitions. [2022-10-15 17:11:36,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 842 [2022-10-15 17:11:36,946 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:36,946 INFO L195 NwaCegarLoop]: trace histogram [62, 62, 61, 61, 50, 49, 31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 30, 30, 20, 18, 12, 12, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:36,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-15 17:11:37,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-15 17:11:37,161 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:37,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:37,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1439681335, now seen corresponding path program 4 times [2022-10-15 17:11:37,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:37,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895141161] [2022-10-15 17:11:37,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:37,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:37,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:39,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:11:41,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-15 17:11:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:41,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:41,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-10-15 17:11:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:41,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:41,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:11:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:41,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-10-15 17:11:42,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:11:42,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:42,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:42,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:42,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-15 17:11:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-10-15 17:11:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:42,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:11:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:42,545 INFO L134 CoverageAnalysis]: Checked inductivity of 20885 backedges. 649 proven. 2470 refuted. 0 times theorem prover too weak. 17766 trivial. 0 not checked. [2022-10-15 17:11:42,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:42,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895141161] [2022-10-15 17:11:42,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895141161] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:42,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801666760] [2022-10-15 17:11:42,546 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-15 17:11:42,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:42,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:42,548 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:11:42,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-15 17:11:42,943 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-15 17:11:42,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 17:11:42,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 1497 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-15 17:11:42,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:43,217 INFO L134 CoverageAnalysis]: Checked inductivity of 20885 backedges. 323 proven. 2533 refuted. 0 times theorem prover too weak. 18029 trivial. 0 not checked. [2022-10-15 17:11:43,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:47,608 INFO L134 CoverageAnalysis]: Checked inductivity of 20885 backedges. 323 proven. 2577 refuted. 0 times theorem prover too weak. 17985 trivial. 0 not checked. [2022-10-15 17:11:47,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801666760] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:47,609 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:47,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 14, 21] total 37 [2022-10-15 17:11:47,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636903315] [2022-10-15 17:11:47,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:47,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-10-15 17:11:47,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:47,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-10-15 17:11:47,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=1129, Unknown=0, NotChecked=0, Total=1332 [2022-10-15 17:11:47,616 INFO L87 Difference]: Start difference. First operand 229 states and 330 transitions. Second operand has 37 states, 36 states have (on average 3.111111111111111) internal successors, (112), 37 states have internal predecessors, (112), 30 states have call successors, (37), 1 states have call predecessors, (37), 15 states have return successors, (50), 22 states have call predecessors, (50), 30 states have call successors, (50) [2022-10-15 17:11:48,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:48,895 INFO L93 Difference]: Finished difference Result 302 states and 459 transitions. [2022-10-15 17:11:48,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-10-15 17:11:48,896 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 3.111111111111111) internal successors, (112), 37 states have internal predecessors, (112), 30 states have call successors, (37), 1 states have call predecessors, (37), 15 states have return successors, (50), 22 states have call predecessors, (50), 30 states have call successors, (50) Word has length 841 [2022-10-15 17:11:48,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:48,903 INFO L225 Difference]: With dead ends: 302 [2022-10-15 17:11:48,903 INFO L226 Difference]: Without dead ends: 293 [2022-10-15 17:11:48,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1972 GetRequests, 1902 SyntacticMatches, 10 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1258 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=586, Invalid=3196, Unknown=0, NotChecked=0, Total=3782 [2022-10-15 17:11:48,906 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 182 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 300 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 1604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 300 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:48,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 389 Invalid, 1604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [300 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-15 17:11:48,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-10-15 17:11:48,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 261. [2022-10-15 17:11:48,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 187 states have (on average 1.106951871657754) internal successors, (207), 180 states have internal predecessors, (207), 53 states have call successors, (53), 44 states have call predecessors, (53), 20 states have return successors, (127), 36 states have call predecessors, (127), 53 states have call successors, (127) [2022-10-15 17:11:48,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 387 transitions. [2022-10-15 17:11:48,934 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 387 transitions. Word has length 841 [2022-10-15 17:11:48,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:48,935 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 387 transitions. [2022-10-15 17:11:48,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 3.111111111111111) internal successors, (112), 37 states have internal predecessors, (112), 30 states have call successors, (37), 1 states have call predecessors, (37), 15 states have return successors, (50), 22 states have call predecessors, (50), 30 states have call successors, (50) [2022-10-15 17:11:48,935 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 387 transitions. [2022-10-15 17:11:48,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1496 [2022-10-15 17:11:48,969 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:48,970 INFO L195 NwaCegarLoop]: trace histogram [110, 110, 109, 109, 90, 87, 55, 55, 55, 55, 55, 55, 55, 54, 54, 54, 54, 54, 54, 54, 36, 32, 22, 20, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:49,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-15 17:11:49,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-15 17:11:49,185 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:49,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:49,186 INFO L85 PathProgramCache]: Analyzing trace with hash -793750045, now seen corresponding path program 5 times [2022-10-15 17:11:49,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:49,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743262792] [2022-10-15 17:11:49,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:49,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat