/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_15-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:11:24,317 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:11:24,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:11:24,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:11:24,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:11:24,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:11:24,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:11:24,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:11:24,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:11:24,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:11:24,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:11:24,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:11:24,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:11:24,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:11:24,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:11:24,369 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:11:24,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:11:24,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:11:24,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:11:24,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:11:24,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:11:24,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:11:24,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:11:24,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:11:24,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:11:24,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:11:24,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:11:24,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:11:24,401 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 17:11:24,457 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:11:24,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:11:24,458 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:11:24,458 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:11:24,459 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:11:24,460 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:11:24,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:11:24,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:11:24,461 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:11:24,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:11:24,461 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:11:24,462 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:11:24,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:11:24,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:11:24,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:11:24,462 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:11:24,463 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:11:24,463 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:11:24,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:11:24,463 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:11:24,463 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:11:24,463 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:11:24,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:11:24,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:11:24,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:11:24,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:11:24,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:11:24,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:11:24,465 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:11:24,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:11:24,465 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:11:24,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:11:24,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:11:24,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:11:24,911 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:11:24,912 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:11:24,913 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_2calls_15-1.c [2022-10-15 17:11:25,003 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0ec9f7e1/33c512deed7b4fabb6e39b1f84cc7d63/FLAG0d8843c74 [2022-10-15 17:11:25,541 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:11:25,542 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_15-1.c [2022-10-15 17:11:25,549 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0ec9f7e1/33c512deed7b4fabb6e39b1f84cc7d63/FLAG0d8843c74 [2022-10-15 17:11:26,005 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0ec9f7e1/33c512deed7b4fabb6e39b1f84cc7d63 [2022-10-15 17:11:26,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:11:26,031 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:11:26,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:11:26,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:11:26,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:11:26,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:11:26" (1/1) ... [2022-10-15 17:11:26,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c505225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:26, skipping insertion in model container [2022-10-15 17:11:26,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:11:26" (1/1) ... [2022-10-15 17:11:26,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:11:26,064 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:11:26,229 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_15-1.c[950,963] [2022-10-15 17:11:26,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:11:26,251 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:11:26,278 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_15-1.c[950,963] [2022-10-15 17:11:26,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:11:26,297 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:11:26,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:26 WrapperNode [2022-10-15 17:11:26,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:11:26,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:11:26,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:11:26,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:11:26,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:26" (1/1) ... [2022-10-15 17:11:26,321 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:26" (1/1) ... [2022-10-15 17:11:26,341 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-10-15 17:11:26,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:11:26,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:11:26,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:11:26,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:11:26,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:26" (1/1) ... [2022-10-15 17:11:26,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:26" (1/1) ... [2022-10-15 17:11:26,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:26" (1/1) ... [2022-10-15 17:11:26,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:26" (1/1) ... [2022-10-15 17:11:26,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:26" (1/1) ... [2022-10-15 17:11:26,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:26" (1/1) ... [2022-10-15 17:11:26,374 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:26" (1/1) ... [2022-10-15 17:11:26,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:26" (1/1) ... [2022-10-15 17:11:26,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:11:26,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:11:26,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:11:26,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:11:26,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:26" (1/1) ... [2022-10-15 17:11:26,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:11:26,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:26,416 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 17:11:26,426 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 17:11:26,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:11:26,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:11:26,468 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2022-10-15 17:11:26,468 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2022-10-15 17:11:26,468 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2022-10-15 17:11:26,469 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2022-10-15 17:11:26,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:11:26,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:11:26,540 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:11:26,543 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:11:26,773 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:11:26,791 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:11:26,791 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 17:11:26,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:11:26 BoogieIcfgContainer [2022-10-15 17:11:26,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:11:26,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:11:26,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:11:26,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:11:26,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:11:26" (1/3) ... [2022-10-15 17:11:26,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d157d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:11:26, skipping insertion in model container [2022-10-15 17:11:26,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:26" (2/3) ... [2022-10-15 17:11:26,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d157d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:11:26, skipping insertion in model container [2022-10-15 17:11:26,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:11:26" (3/3) ... [2022-10-15 17:11:26,804 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_2calls_15-1.c [2022-10-15 17:11:26,832 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:11:26,832 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:11:26,954 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:11:26,975 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;@6b1bcaa0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:11:26,975 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:11:26,983 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 17:11:27,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 17:11:27,007 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:27,011 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:27,012 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:27,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:27,030 INFO L85 PathProgramCache]: Analyzing trace with hash -511770027, now seen corresponding path program 1 times [2022-10-15 17:11:27,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:27,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505686677] [2022-10-15 17:11:27,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:27,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:27,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:27,511 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 17:11:27,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:27,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505686677] [2022-10-15 17:11:27,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505686677] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:11:27,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:11:27,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:11:27,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138467111] [2022-10-15 17:11:27,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:11:27,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:11:27,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:27,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:11:27,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:11:27,575 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 17:11:27,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:27,669 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2022-10-15 17:11:27,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:11:27,672 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 17:11:27,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:27,683 INFO L225 Difference]: With dead ends: 39 [2022-10-15 17:11:27,683 INFO L226 Difference]: Without dead ends: 35 [2022-10-15 17:11:27,686 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 17:11:27,694 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 17:11:27,696 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 17:11:27,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-10-15 17:11:27,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2022-10-15 17:11:27,758 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 17:11:27,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2022-10-15 17:11:27,763 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 10 [2022-10-15 17:11:27,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:27,764 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2022-10-15 17:11:27,766 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 17:11:27,766 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2022-10-15 17:11:27,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 17:11:27,770 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:27,770 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:27,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:11:27,771 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:27,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:27,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1315003323, now seen corresponding path program 1 times [2022-10-15 17:11:27,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:27,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741919056] [2022-10-15 17:11:27,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:27,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:27,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:27,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:27,891 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 17:11:27,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:27,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741919056] [2022-10-15 17:11:27,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741919056] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:11:27,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:11:27,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:11:27,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080165364] [2022-10-15 17:11:27,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:11:27,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:11:27,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:27,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:11:27,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:11:27,896 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 17:11:27,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:27,905 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2022-10-15 17:11:27,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:11:27,905 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 17:11:27,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:27,907 INFO L225 Difference]: With dead ends: 31 [2022-10-15 17:11:27,907 INFO L226 Difference]: Without dead ends: 27 [2022-10-15 17:11:27,908 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 17:11:27,910 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 17:11:27,910 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 17:11:27,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-10-15 17:11:27,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-10-15 17:11:27,917 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 17:11:27,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2022-10-15 17:11:27,919 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 11 [2022-10-15 17:11:27,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:27,919 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2022-10-15 17:11:27,919 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 17:11:27,920 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2022-10-15 17:11:27,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 17:11:27,920 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:27,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:27,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:11:27,921 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:27,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:27,922 INFO L85 PathProgramCache]: Analyzing trace with hash 2030187948, now seen corresponding path program 1 times [2022-10-15 17:11:27,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:27,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622836590] [2022-10-15 17:11:27,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:27,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:27,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:28,011 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 17:11:28,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:28,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622836590] [2022-10-15 17:11:28,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622836590] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:11:28,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:11:28,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:11:28,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374891333] [2022-10-15 17:11:28,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:11:28,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:11:28,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:28,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:11:28,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:11:28,015 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 17:11:28,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:28,040 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2022-10-15 17:11:28,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:11:28,041 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 17:11:28,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:28,042 INFO L225 Difference]: With dead ends: 31 [2022-10-15 17:11:28,042 INFO L226 Difference]: Without dead ends: 29 [2022-10-15 17:11:28,043 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 17:11:28,044 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 17:11:28,045 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 17:11:28,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-10-15 17:11:28,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-10-15 17:11:28,051 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 17:11:28,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2022-10-15 17:11:28,053 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 11 [2022-10-15 17:11:28,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:28,053 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2022-10-15 17:11:28,054 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 17:11:28,054 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2022-10-15 17:11:28,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 17:11:28,055 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:28,056 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 17:11:28,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:11:28,056 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:28,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:28,057 INFO L85 PathProgramCache]: Analyzing trace with hash 610996755, now seen corresponding path program 1 times [2022-10-15 17:11:28,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:28,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760848284] [2022-10-15 17:11:28,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:28,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:28,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:28,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:28,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:28,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 17:11:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:28,269 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 17:11:28,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:28,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760848284] [2022-10-15 17:11:28,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760848284] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:28,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606166701] [2022-10-15 17:11:28,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:28,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:28,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:28,276 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 17:11:28,299 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 17:11:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:28,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 17:11:28,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:28,521 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 17:11:28,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:28,765 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 17:11:28,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606166701] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:28,766 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:28,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13 [2022-10-15 17:11:28,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567459824] [2022-10-15 17:11:28,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:28,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 17:11:28,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:28,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 17:11:28,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:11:28,769 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 17:11:28,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:28,946 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2022-10-15 17:11:28,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 17:11:28,947 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 17:11:28,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:28,948 INFO L225 Difference]: With dead ends: 31 [2022-10-15 17:11:28,949 INFO L226 Difference]: Without dead ends: 31 [2022-10-15 17:11:28,949 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 17:11:28,951 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 17:11:28,952 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 17:11:28,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-10-15 17:11:28,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2022-10-15 17:11:28,958 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 17:11:28,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2022-10-15 17:11:28,960 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 23 [2022-10-15 17:11:28,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:28,961 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2022-10-15 17:11:28,961 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 17:11:28,961 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2022-10-15 17:11:28,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 17:11:28,963 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:28,963 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 17:11:29,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 17:11:29,176 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 17:11:29,177 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:29,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:29,179 INFO L85 PathProgramCache]: Analyzing trace with hash 2035188206, now seen corresponding path program 1 times [2022-10-15 17:11:29,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:29,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971511230] [2022-10-15 17:11:29,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:29,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:29,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:29,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:29,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:29,426 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 17:11:29,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:29,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971511230] [2022-10-15 17:11:29,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971511230] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:29,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739474403] [2022-10-15 17:11:29,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:29,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:29,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:29,431 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 17:11:29,445 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 17:11:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:29,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 17:11:29,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:29,545 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 17:11:29,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:29,706 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 17:11:29,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739474403] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:29,707 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:29,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2022-10-15 17:11:29,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484218027] [2022-10-15 17:11:29,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:29,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 17:11:29,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:29,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 17:11:29,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:11:29,709 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 17:11:29,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:29,869 INFO L93 Difference]: Finished difference Result 47 states and 67 transitions. [2022-10-15 17:11:29,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 17:11:29,870 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 17:11:29,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:29,873 INFO L225 Difference]: With dead ends: 47 [2022-10-15 17:11:29,873 INFO L226 Difference]: Without dead ends: 47 [2022-10-15 17:11:29,874 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 17:11:29,875 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, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:29,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 101 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:11:29,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-10-15 17:11:29,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2022-10-15 17:11:29,885 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 17:11:29,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 62 transitions. [2022-10-15 17:11:29,887 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 62 transitions. Word has length 24 [2022-10-15 17:11:29,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:29,887 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 62 transitions. [2022-10-15 17:11:29,888 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 17:11:29,888 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 62 transitions. [2022-10-15 17:11:29,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-15 17:11:29,890 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:29,890 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 17:11:29,927 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 17:11:30,104 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 17:11:30,105 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:30,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:30,107 INFO L85 PathProgramCache]: Analyzing trace with hash 716039159, now seen corresponding path program 1 times [2022-10-15 17:11:30,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:30,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784478570] [2022-10-15 17:11:30,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:30,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:30,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:30,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:30,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:30,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 17:11:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:30,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 17:11:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:30,251 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 17:11:30,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:30,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784478570] [2022-10-15 17:11:30,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784478570] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:30,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89471901] [2022-10-15 17:11:30,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:30,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:30,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:30,255 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 17:11:30,257 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 17:11:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:30,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 17:11:30,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:30,383 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 17:11:30,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:30,677 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 17:11:30,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89471901] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:30,678 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:30,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 15 [2022-10-15 17:11:30,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868497485] [2022-10-15 17:11:30,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:30,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-15 17:11:30,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:30,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-15 17:11:30,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-10-15 17:11:30,681 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 17:11:30,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:30,919 INFO L93 Difference]: Finished difference Result 63 states and 92 transitions. [2022-10-15 17:11:30,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-15 17:11:30,920 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 17:11:30,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:30,924 INFO L225 Difference]: With dead ends: 63 [2022-10-15 17:11:30,924 INFO L226 Difference]: Without dead ends: 63 [2022-10-15 17:11:30,927 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 17:11:30,929 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 17:11:30,929 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 17:11:30,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-10-15 17:11:30,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-10-15 17:11:30,951 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 17:11:30,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 92 transitions. [2022-10-15 17:11:30,954 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 92 transitions. Word has length 36 [2022-10-15 17:11:30,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:30,954 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 92 transitions. [2022-10-15 17:11:30,954 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 17:11:30,955 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 92 transitions. [2022-10-15 17:11:30,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-15 17:11:30,959 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:30,959 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 17:11:30,990 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 17:11:31,173 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 17:11:31,174 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:31,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:31,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1375469090, now seen corresponding path program 1 times [2022-10-15 17:11:31,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:31,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110940327] [2022-10-15 17:11:31,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:31,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:31,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:31,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:31,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:31,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:31,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:31,435 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 17:11:31,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:31,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110940327] [2022-10-15 17:11:31,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110940327] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:31,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182886375] [2022-10-15 17:11:31,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:31,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:31,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:31,439 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 17:11:31,458 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 17:11:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:31,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 17:11:31,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:31,570 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 17:11:31,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:31,884 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 17:11:31,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182886375] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:31,885 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:31,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 18 [2022-10-15 17:11:31,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644597934] [2022-10-15 17:11:31,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:31,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-15 17:11:31,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:31,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-15 17:11:31,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-10-15 17:11:31,887 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 17:11:32,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:32,264 INFO L93 Difference]: Finished difference Result 117 states and 195 transitions. [2022-10-15 17:11:32,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-15 17:11:32,265 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 17:11:32,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:32,268 INFO L225 Difference]: With dead ends: 117 [2022-10-15 17:11:32,269 INFO L226 Difference]: Without dead ends: 117 [2022-10-15 17:11:32,269 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 17:11:32,273 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 17:11:32,273 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 17:11:32,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-10-15 17:11:32,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 103. [2022-10-15 17:11:32,297 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 17:11:32,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 166 transitions. [2022-10-15 17:11:32,300 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 166 transitions. Word has length 37 [2022-10-15 17:11:32,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:32,301 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 166 transitions. [2022-10-15 17:11:32,301 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 17:11:32,301 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 166 transitions. [2022-10-15 17:11:32,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-15 17:11:32,305 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:32,305 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 17:11:32,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-10-15 17:11:32,520 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 17:11:32,521 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:32,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:32,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1808172135, now seen corresponding path program 1 times [2022-10-15 17:11:32,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:32,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758387291] [2022-10-15 17:11:32,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:32,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:32,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:32,799 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 10 [2022-10-15 17:11:32,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:11:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,826 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 17:11:32,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:32,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758387291] [2022-10-15 17:11:32,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758387291] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:32,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884593981] [2022-10-15 17:11:32,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:32,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:32,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:32,828 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 17:11:32,851 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 17:11:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:32,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-15 17:11:32,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:32,983 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 17:11:32,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:33,485 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 17:11:33,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884593981] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:33,486 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:33,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 11] total 20 [2022-10-15 17:11:33,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33328344] [2022-10-15 17:11:33,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:33,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-15 17:11:33,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:33,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-15 17:11:33,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2022-10-15 17:11:33,489 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 17:11:33,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:33,960 INFO L93 Difference]: Finished difference Result 155 states and 272 transitions. [2022-10-15 17:11:33,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-15 17:11:33,961 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 17:11:33,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:33,965 INFO L225 Difference]: With dead ends: 155 [2022-10-15 17:11:33,965 INFO L226 Difference]: Without dead ends: 155 [2022-10-15 17:11:33,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 110 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=150, Invalid=662, Unknown=0, NotChecked=0, Total=812 [2022-10-15 17:11:33,967 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 76 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:33,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 203 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:11:33,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-10-15 17:11:33,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 109. [2022-10-15 17:11:33,993 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 17:11:33,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 177 transitions. [2022-10-15 17:11:33,996 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 177 transitions. Word has length 51 [2022-10-15 17:11:33,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:33,997 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 177 transitions. [2022-10-15 17:11:33,997 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 17:11:33,998 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 177 transitions. [2022-10-15 17:11:34,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-15 17:11:34,002 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:34,002 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 17:11:34,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 17:11:34,217 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 17:11:34,217 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:34,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:34,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1122052341, now seen corresponding path program 1 times [2022-10-15 17:11:34,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:34,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909356619] [2022-10-15 17:11:34,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:34,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:34,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:34,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:34,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:34,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:34,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:34,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:34,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:34,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:34,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:34,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:34,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-15 17:11:34,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:34,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:34,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:34,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:34,608 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 17:11:34,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:34,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909356619] [2022-10-15 17:11:34,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909356619] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:34,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25974564] [2022-10-15 17:11:34,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:34,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:34,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:34,611 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 17:11:34,636 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 17:11:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:34,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-15 17:11:34,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:34,809 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 17:11:34,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:35,578 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 17:11:35,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25974564] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:35,579 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:35,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 13] total 24 [2022-10-15 17:11:35,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017882857] [2022-10-15 17:11:35,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:35,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-15 17:11:35,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:35,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-15 17:11:35,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2022-10-15 17:11:35,581 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 17:11:36,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:36,090 INFO L93 Difference]: Finished difference Result 137 states and 209 transitions. [2022-10-15 17:11:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-15 17:11:36,091 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 17:11:36,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:36,093 INFO L225 Difference]: With dead ends: 137 [2022-10-15 17:11:36,093 INFO L226 Difference]: Without dead ends: 107 [2022-10-15 17:11:36,094 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 17:11:36,095 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 100 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:36,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 189 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:11:36,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-10-15 17:11:36,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 84. [2022-10-15 17:11:36,108 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 17:11:36,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 116 transitions. [2022-10-15 17:11:36,110 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 116 transitions. Word has length 79 [2022-10-15 17:11:36,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:36,110 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 116 transitions. [2022-10-15 17:11:36,111 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 17:11:36,111 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 116 transitions. [2022-10-15 17:11:36,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-10-15 17:11:36,121 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:36,121 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 17:11:36,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-10-15 17:11:36,322 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 17:11:36,323 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:36,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:36,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1844874843, now seen corresponding path program 1 times [2022-10-15 17:11:36,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:36,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635200420] [2022-10-15 17:11:36,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:36,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:36,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:36,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:36,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:36,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:36,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:36,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:36,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:36,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:36,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:36,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:36,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-15 17:11:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:36,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:36,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:36,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:36,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:36,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:36,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:36,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:36,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-15 17:11:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:37,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:37,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:37,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:37,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:37,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:37,014 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 17:11:37,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:37,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635200420] [2022-10-15 17:11:37,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635200420] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:37,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062911472] [2022-10-15 17:11:37,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:37,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:37,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:37,016 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 17:11:37,025 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 17:11:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:37,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-15 17:11:37,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:37,268 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 17:11:37,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:38,494 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 17:11:38,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062911472] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:38,494 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:38,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 15] total 26 [2022-10-15 17:11:38,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893428556] [2022-10-15 17:11:38,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:38,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-15 17:11:38,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:38,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-15 17:11:38,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2022-10-15 17:11:38,497 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 17:11:39,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:39,126 INFO L93 Difference]: Finished difference Result 140 states and 216 transitions. [2022-10-15 17:11:39,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-15 17:11:39,127 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 17:11:39,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:39,130 INFO L225 Difference]: With dead ends: 140 [2022-10-15 17:11:39,130 INFO L226 Difference]: Without dead ends: 134 [2022-10-15 17:11:39,131 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 17:11:39,132 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 105 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:39,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 238 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 17:11:39,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-10-15 17:11:39,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 114. [2022-10-15 17:11:39,148 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 17:11:39,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 169 transitions. [2022-10-15 17:11:39,150 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 169 transitions. Word has length 148 [2022-10-15 17:11:39,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:39,151 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 169 transitions. [2022-10-15 17:11:39,151 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 17:11:39,151 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 169 transitions. [2022-10-15 17:11:39,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-10-15 17:11:39,156 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:39,156 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 17:11:39,193 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 17:11:39,369 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 17:11:39,369 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:39,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:39,371 INFO L85 PathProgramCache]: Analyzing trace with hash -776511890, now seen corresponding path program 1 times [2022-10-15 17:11:39,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:39,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772884847] [2022-10-15 17:11:39,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:39,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:39,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:40,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-15 17:11:40,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:40,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-15 17:11:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:40,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,790 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 17:11:40,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:40,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772884847] [2022-10-15 17:11:40,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772884847] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:40,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333821195] [2022-10-15 17:11:40,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:40,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:40,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:40,795 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 17:11:40,821 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 17:11:40,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:40,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-15 17:11:40,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:41,085 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 17:11:41,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:42,960 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 17:11:42,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333821195] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:42,961 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:42,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 17] total 28 [2022-10-15 17:11:42,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469631398] [2022-10-15 17:11:42,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:42,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-15 17:11:42,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:42,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-15 17:11:42,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2022-10-15 17:11:42,967 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 17:11:43,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:43,717 INFO L93 Difference]: Finished difference Result 156 states and 244 transitions. [2022-10-15 17:11:43,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-15 17:11:43,718 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 17:11:43,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:43,721 INFO L225 Difference]: With dead ends: 156 [2022-10-15 17:11:43,721 INFO L226 Difference]: Without dead ends: 155 [2022-10-15 17:11:43,722 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 17:11:43,723 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 101 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:43,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 276 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 17:11:43,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-10-15 17:11:43,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 145. [2022-10-15 17:11:43,737 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 17:11:43,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 224 transitions. [2022-10-15 17:11:43,740 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 224 transitions. Word has length 255 [2022-10-15 17:11:43,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:43,741 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 224 transitions. [2022-10-15 17:11:43,741 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 17:11:43,741 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 224 transitions. [2022-10-15 17:11:43,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-10-15 17:11:43,748 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:43,748 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 17:11:43,786 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 17:11:43,961 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 17:11:43,962 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:43,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:43,963 INFO L85 PathProgramCache]: Analyzing trace with hash -184807700, now seen corresponding path program 2 times [2022-10-15 17:11:43,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:43,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274131979] [2022-10-15 17:11:43,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:43,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:44,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:44,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:45,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-15 17:11:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-10-15 17:11:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-10-15 17:11:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:45,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:45,845 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 17:11:45,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:45,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274131979] [2022-10-15 17:11:45,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274131979] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:45,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9431961] [2022-10-15 17:11:45,845 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 17:11:45,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:45,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:45,847 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 17:11:45,854 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 17:11:46,024 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 17:11:46,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 17:11:46,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-15 17:11:46,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:46,208 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 17:11:46,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:48,743 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 17:11:48,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9431961] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:48,744 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:48,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 19] total 30 [2022-10-15 17:11:48,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931090003] [2022-10-15 17:11:48,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:48,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-10-15 17:11:48,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:48,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-10-15 17:11:48,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=736, Unknown=0, NotChecked=0, Total=870 [2022-10-15 17:11:48,747 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 17:11:49,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:49,636 INFO L93 Difference]: Finished difference Result 199 states and 320 transitions. [2022-10-15 17:11:49,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-10-15 17:11:49,637 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 17:11:49,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:49,641 INFO L225 Difference]: With dead ends: 199 [2022-10-15 17:11:49,641 INFO L226 Difference]: Without dead ends: 197 [2022-10-15 17:11:49,642 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 17:11:49,643 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 144 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:49,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 250 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 17:11:49,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-10-15 17:11:49,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 173. [2022-10-15 17:11:49,661 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 17:11:49,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 272 transitions. [2022-10-15 17:11:49,664 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 272 transitions. Word has length 339 [2022-10-15 17:11:49,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:49,665 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 272 transitions. [2022-10-15 17:11:49,665 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 17:11:49,665 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 272 transitions. [2022-10-15 17:11:49,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2022-10-15 17:11:49,684 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:49,684 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 48, 48, 40, 39, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 16, 15, 10, 8, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:49,720 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 17:11:49,898 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 17:11:49,898 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:49,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:49,899 INFO L85 PathProgramCache]: Analyzing trace with hash 500968454, now seen corresponding path program 3 times [2022-10-15 17:11:49,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:49,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070595106] [2022-10-15 17:11:49,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:49,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:51,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:52,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:53,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:53,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:11:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-15 17:11:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:53,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:53,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:53,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-10-15 17:11:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:54,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:11:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-15 17:11:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-10-15 17:11:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:11:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:11:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:54,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-15 17:11:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,959 INFO L134 CoverageAnalysis]: Checked inductivity of 12945 backedges. 1975 proven. 1404 refuted. 0 times theorem prover too weak. 9566 trivial. 0 not checked. [2022-10-15 17:11:54,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:54,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070595106] [2022-10-15 17:11:54,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070595106] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:54,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637309487] [2022-10-15 17:11:54,960 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 17:11:54,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:54,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:54,965 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 17:11:54,990 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 17:11:55,173 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-10-15 17:11:55,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 17:11:55,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-15 17:11:55,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:55,360 INFO L134 CoverageAnalysis]: Checked inductivity of 12945 backedges. 1796 proven. 99 refuted. 0 times theorem prover too weak. 11050 trivial. 0 not checked. [2022-10-15 17:11:55,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:57,716 INFO L134 CoverageAnalysis]: Checked inductivity of 12945 backedges. 1796 proven. 104 refuted. 0 times theorem prover too weak. 11045 trivial. 0 not checked. [2022-10-15 17:11:57,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637309487] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:57,717 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:57,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 14, 17] total 42 [2022-10-15 17:11:57,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221516190] [2022-10-15 17:11:57,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:57,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-10-15 17:11:57,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:57,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-10-15 17:11:57,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=251, Invalid=1471, Unknown=0, NotChecked=0, Total=1722 [2022-10-15 17:11:57,722 INFO L87 Difference]: Start difference. First operand 173 states and 272 transitions. Second operand has 42 states, 42 states have (on average 2.8333333333333335) internal successors, (119), 42 states have internal predecessors, (119), 27 states have call successors, (41), 1 states have call predecessors, (41), 16 states have return successors, (54), 35 states have call predecessors, (54), 27 states have call successors, (54) [2022-10-15 17:11:58,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:58,592 INFO L93 Difference]: Finished difference Result 234 states and 338 transitions. [2022-10-15 17:11:58,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-15 17:11:58,594 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 2.8333333333333335) internal successors, (119), 42 states have internal predecessors, (119), 27 states have call successors, (41), 1 states have call predecessors, (41), 16 states have return successors, (54), 35 states have call predecessors, (54), 27 states have call successors, (54) Word has length 665 [2022-10-15 17:11:58,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:58,597 INFO L225 Difference]: With dead ends: 234 [2022-10-15 17:11:58,597 INFO L226 Difference]: Without dead ends: 229 [2022-10-15 17:11:58,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1560 GetRequests, 1503 SyntacticMatches, 8 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1204 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=389, Invalid=2161, Unknown=0, NotChecked=0, Total=2550 [2022-10-15 17:11:58,599 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 110 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:58,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 538 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-15 17:11:58,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-10-15 17:11:58,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 222. [2022-10-15 17:11:58,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 162 states have (on average 1.0740740740740742) internal successors, (174), 151 states have internal predecessors, (174), 41 states have call successors, (41), 38 states have call predecessors, (41), 18 states have return successors, (102), 32 states have call predecessors, (102), 41 states have call successors, (102) [2022-10-15 17:11:58,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 317 transitions. [2022-10-15 17:11:58,617 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 317 transitions. Word has length 665 [2022-10-15 17:11:58,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:58,618 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 317 transitions. [2022-10-15 17:11:58,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.8333333333333335) internal successors, (119), 42 states have internal predecessors, (119), 27 states have call successors, (41), 1 states have call predecessors, (41), 16 states have return successors, (54), 35 states have call predecessors, (54), 27 states have call successors, (54) [2022-10-15 17:11:58,619 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 317 transitions. [2022-10-15 17:11:58,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2022-10-15 17:11:58,642 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:58,642 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 51, 51, 42, 41, 26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 25, 25, 16, 16, 11, 9, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:58,677 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 17:11:58,856 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 17:11:58,856 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:58,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:58,858 INFO L85 PathProgramCache]: Analyzing trace with hash -624317999, now seen corresponding path program 4 times [2022-10-15 17:11:58,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:58,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727995691] [2022-10-15 17:11:58,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:58,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:00,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:01,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:02,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:03,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:12:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-15 17:12:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:03,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:03,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:03,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:12:03,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:03,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-10-15 17:12:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:03,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:12:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-10-15 17:12:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:12:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:03,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:03,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:03,888 INFO L134 CoverageAnalysis]: Checked inductivity of 14585 backedges. 1626 proven. 1606 refuted. 0 times theorem prover too weak. 11353 trivial. 0 not checked. [2022-10-15 17:12:03,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:03,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727995691] [2022-10-15 17:12:03,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727995691] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:12:03,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648260315] [2022-10-15 17:12:03,889 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-15 17:12:03,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:03,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:12:03,892 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 17:12:03,915 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 17:12:04,171 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-15 17:12:04,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 17:12:04,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 1252 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-15 17:12:04,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:12:04,428 INFO L134 CoverageAnalysis]: Checked inductivity of 14585 backedges. 7909 proven. 919 refuted. 0 times theorem prover too weak. 5757 trivial. 0 not checked. [2022-10-15 17:12:04,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:12:09,555 INFO L134 CoverageAnalysis]: Checked inductivity of 14585 backedges. 791 proven. 2723 refuted. 0 times theorem prover too weak. 11071 trivial. 0 not checked. [2022-10-15 17:12:09,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648260315] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:12:09,555 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:12:09,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 19, 27] total 48 [2022-10-15 17:12:09,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327972566] [2022-10-15 17:12:09,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:12:09,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-10-15 17:12:09,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:09,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-10-15 17:12:09,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=1939, Unknown=0, NotChecked=0, Total=2256 [2022-10-15 17:12:09,566 INFO L87 Difference]: Start difference. First operand 222 states and 317 transitions. Second operand has 48 states, 48 states have (on average 3.0625) internal successors, (147), 48 states have internal predecessors, (147), 40 states have call successors, (51), 2 states have call predecessors, (51), 17 states have return successors, (69), 28 states have call predecessors, (69), 40 states have call successors, (69) [2022-10-15 17:12:11,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:11,302 INFO L93 Difference]: Finished difference Result 258 states and 376 transitions. [2022-10-15 17:12:11,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-10-15 17:12:11,303 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 3.0625) internal successors, (147), 48 states have internal predecessors, (147), 40 states have call successors, (51), 2 states have call predecessors, (51), 17 states have return successors, (69), 28 states have call predecessors, (69), 40 states have call successors, (69) Word has length 705 [2022-10-15 17:12:11,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:11,309 INFO L225 Difference]: With dead ends: 258 [2022-10-15 17:12:11,309 INFO L226 Difference]: Without dead ends: 254 [2022-10-15 17:12:11,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1670 GetRequests, 1582 SyntacticMatches, 13 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2239 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=840, Invalid=5012, Unknown=0, NotChecked=0, Total=5852 [2022-10-15 17:12:11,312 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 223 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 2157 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 2550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 2157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:11,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 633 Invalid, 2550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 2157 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-15 17:12:11,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-10-15 17:12:11,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 209. [2022-10-15 17:12:11,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 150 states have (on average 1.06) internal successors, (159), 143 states have internal predecessors, (159), 40 states have call successors, (40), 34 states have call predecessors, (40), 18 states have return successors, (91), 31 states have call predecessors, (91), 40 states have call successors, (91) [2022-10-15 17:12:11,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 290 transitions. [2022-10-15 17:12:11,328 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 290 transitions. Word has length 705 [2022-10-15 17:12:11,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:11,329 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 290 transitions. [2022-10-15 17:12:11,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 3.0625) internal successors, (147), 48 states have internal predecessors, (147), 40 states have call successors, (51), 2 states have call predecessors, (51), 17 states have return successors, (69), 28 states have call predecessors, (69), 40 states have call successors, (69) [2022-10-15 17:12:11,329 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 290 transitions. [2022-10-15 17:12:11,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 924 [2022-10-15 17:12:11,339 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:11,340 INFO L195 NwaCegarLoop]: trace histogram [69, 69, 66, 66, 55, 54, 34, 34, 34, 34, 34, 34, 34, 33, 33, 33, 33, 33, 33, 33, 22, 20, 14, 12, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:11,383 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 17:12:11,555 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 17:12:11,555 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:11,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:11,557 INFO L85 PathProgramCache]: Analyzing trace with hash 2141929897, now seen corresponding path program 5 times [2022-10-15 17:12:11,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:11,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692316766] [2022-10-15 17:12:11,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:11,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat