/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/bitvector/s3_srvr_2a.BV.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 16:31:48,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 16:31:48,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 16:31:48,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 16:31:48,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 16:31:48,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 16:31:48,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 16:31:48,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 16:31:48,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 16:31:48,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 16:31:48,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 16:31:48,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 16:31:48,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 16:31:48,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 16:31:48,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 16:31:48,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 16:31:48,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 16:31:48,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 16:31:48,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 16:31:48,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 16:31:48,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 16:31:48,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 16:31:48,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 16:31:48,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 16:31:49,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 16:31:49,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 16:31:49,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 16:31:49,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 16:31:49,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 16:31:49,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 16:31:49,016 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 16:31:49,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 16:31:49,017 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 16:31:49,017 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 16:31:49,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 16:31:49,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 16:31:49,020 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 16:31:49,050 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 16:31:49,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 16:31:49,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 16:31:49,051 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 16:31:49,052 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 16:31:49,052 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 16:31:49,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 16:31:49,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 16:31:49,053 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 16:31:49,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 16:31:49,054 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 16:31:49,054 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 16:31:49,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 16:31:49,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 16:31:49,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 16:31:49,055 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 16:31:49,055 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 16:31:49,055 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 16:31:49,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 16:31:49,055 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 16:31:49,056 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 16:31:49,056 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 16:31:49,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 16:31:49,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 16:31:49,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 16:31:49,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:31:49,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 16:31:49,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 16:31:49,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 16:31:49,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 16:31:49,058 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 16:31:49,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 16:31:49,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 16:31:49,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 16:31:49,474 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 16:31:49,475 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 16:31:49,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/s3_srvr_2a.BV.c.cil.c [2022-10-15 16:31:49,551 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c455b663e/68080fe3e222412a909eee30446fee9b/FLAG59fd5175f [2022-10-15 16:31:50,229 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 16:31:50,230 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/s3_srvr_2a.BV.c.cil.c [2022-10-15 16:31:50,245 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c455b663e/68080fe3e222412a909eee30446fee9b/FLAG59fd5175f [2022-10-15 16:31:50,480 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c455b663e/68080fe3e222412a909eee30446fee9b [2022-10-15 16:31:50,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 16:31:50,490 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 16:31:50,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 16:31:50,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 16:31:50,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 16:31:50,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:31:50" (1/1) ... [2022-10-15 16:31:50,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24ec0d66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:50, skipping insertion in model container [2022-10-15 16:31:50,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:31:50" (1/1) ... [2022-10-15 16:31:50,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 16:31:50,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 16:31:50,984 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/bitvector/s3_srvr_2a.BV.c.cil.c[44872,44885] [2022-10-15 16:31:51,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:31:51,019 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 16:31:51,092 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/bitvector/s3_srvr_2a.BV.c.cil.c[44872,44885] [2022-10-15 16:31:51,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:31:51,112 INFO L208 MainTranslator]: Completed translation [2022-10-15 16:31:51,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:51 WrapperNode [2022-10-15 16:31:51,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 16:31:51,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 16:31:51,115 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 16:31:51,115 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 16:31:51,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:51" (1/1) ... [2022-10-15 16:31:51,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:51" (1/1) ... [2022-10-15 16:31:51,212 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 528 [2022-10-15 16:31:51,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 16:31:51,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 16:31:51,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 16:31:51,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 16:31:51,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:51" (1/1) ... [2022-10-15 16:31:51,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:51" (1/1) ... [2022-10-15 16:31:51,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:51" (1/1) ... [2022-10-15 16:31:51,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:51" (1/1) ... [2022-10-15 16:31:51,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:51" (1/1) ... [2022-10-15 16:31:51,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:51" (1/1) ... [2022-10-15 16:31:51,253 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:51" (1/1) ... [2022-10-15 16:31:51,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:51" (1/1) ... [2022-10-15 16:31:51,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 16:31:51,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 16:31:51,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 16:31:51,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 16:31:51,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:51" (1/1) ... [2022-10-15 16:31:51,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:31:51,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:31:51,304 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 16:31:51,327 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 16:31:51,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 16:31:51,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 16:31:51,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 16:31:51,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 16:31:51,476 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 16:31:51,479 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 16:31:51,515 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-15 16:31:52,284 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-10-15 16:31:52,284 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-10-15 16:31:52,285 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 16:31:52,298 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 16:31:52,300 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 16:31:52,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:31:52 BoogieIcfgContainer [2022-10-15 16:31:52,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 16:31:52,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 16:31:52,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 16:31:52,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 16:31:52,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:31:50" (1/3) ... [2022-10-15 16:31:52,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b7e4f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:31:52, skipping insertion in model container [2022-10-15 16:31:52,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:51" (2/3) ... [2022-10-15 16:31:52,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b7e4f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:31:52, skipping insertion in model container [2022-10-15 16:31:52,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:31:52" (3/3) ... [2022-10-15 16:31:52,317 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_2a.BV.c.cil.c [2022-10-15 16:31:52,341 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 16:31:52,341 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 16:31:52,405 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 16:31:52,415 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;@65d8d2d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 16:31:52,415 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 16:31:52,421 INFO L276 IsEmpty]: Start isEmpty. Operand has 139 states, 136 states have (on average 1.75) internal successors, (238), 138 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:52,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 16:31:52,429 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:52,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:31:52,430 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:52,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:52,437 INFO L85 PathProgramCache]: Analyzing trace with hash -437956057, now seen corresponding path program 1 times [2022-10-15 16:31:52,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:52,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011727393] [2022-10-15 16:31:52,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:52,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:52,745 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 16:31:52,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:52,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011727393] [2022-10-15 16:31:52,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011727393] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:52,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:52,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:31:52,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46747341] [2022-10-15 16:31:52,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:52,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:52,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:52,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:52,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:52,795 INFO L87 Difference]: Start difference. First operand has 139 states, 136 states have (on average 1.75) internal successors, (238), 138 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:52,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:52,842 INFO L93 Difference]: Finished difference Result 132 states and 221 transitions. [2022-10-15 16:31:52,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:52,847 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-15 16:31:52,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:52,860 INFO L225 Difference]: With dead ends: 132 [2022-10-15 16:31:52,861 INFO L226 Difference]: Without dead ends: 114 [2022-10-15 16:31:52,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 16:31:52,868 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 213 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 220 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 16:31:52,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 220 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:31:52,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-10-15 16:31:52,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-10-15 16:31:52,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 113 states have (on average 1.5398230088495575) internal successors, (174), 113 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:52,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 174 transitions. [2022-10-15 16:31:52,919 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 174 transitions. Word has length 9 [2022-10-15 16:31:52,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:52,919 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 174 transitions. [2022-10-15 16:31:52,920 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:52,920 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 174 transitions. [2022-10-15 16:31:52,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-15 16:31:52,923 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:52,924 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:31:52,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 16:31:52,924 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:52,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:52,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1632002022, now seen corresponding path program 1 times [2022-10-15 16:31:52,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:52,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83420921] [2022-10-15 16:31:52,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:52,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:53,357 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 16:31:53,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:53,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83420921] [2022-10-15 16:31:53,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83420921] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:53,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:53,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:53,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892261366] [2022-10-15 16:31:53,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:53,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:53,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:53,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:53,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:53,363 INFO L87 Difference]: Start difference. First operand 114 states and 174 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:53,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:53,610 INFO L93 Difference]: Finished difference Result 161 states and 253 transitions. [2022-10-15 16:31:53,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:53,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-10-15 16:31:53,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:53,614 INFO L225 Difference]: With dead ends: 161 [2022-10-15 16:31:53,614 INFO L226 Difference]: Without dead ends: 161 [2022-10-15 16:31:53,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 16:31:53,617 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 110 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 16:31:53,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 127 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 16:31:53,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-10-15 16:31:53,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 156. [2022-10-15 16:31:53,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 155 states have (on average 1.6) internal successors, (248), 155 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:53,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 248 transitions. [2022-10-15 16:31:53,662 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 248 transitions. Word has length 44 [2022-10-15 16:31:53,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:53,666 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 248 transitions. [2022-10-15 16:31:53,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:53,667 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 248 transitions. [2022-10-15 16:31:53,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-15 16:31:53,670 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:53,670 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:31:53,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 16:31:53,672 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:53,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:53,675 INFO L85 PathProgramCache]: Analyzing trace with hash -954580408, now seen corresponding path program 1 times [2022-10-15 16:31:53,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:53,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470995810] [2022-10-15 16:31:53,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:53,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:53,884 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 16:31:53,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:53,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470995810] [2022-10-15 16:31:53,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470995810] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:53,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:53,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:53,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572604155] [2022-10-15 16:31:53,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:53,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:53,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:53,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:53,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:53,890 INFO L87 Difference]: Start difference. First operand 156 states and 248 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:54,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:54,047 INFO L93 Difference]: Finished difference Result 204 states and 328 transitions. [2022-10-15 16:31:54,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:54,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-10-15 16:31:54,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:54,051 INFO L225 Difference]: With dead ends: 204 [2022-10-15 16:31:54,051 INFO L226 Difference]: Without dead ends: 202 [2022-10-15 16:31:54,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 16:31:54,053 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 110 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:31:54,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 126 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:31:54,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-10-15 16:31:54,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 197. [2022-10-15 16:31:54,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 1.6326530612244898) internal successors, (320), 196 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:54,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 320 transitions. [2022-10-15 16:31:54,072 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 320 transitions. Word has length 45 [2022-10-15 16:31:54,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:54,072 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 320 transitions. [2022-10-15 16:31:54,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:54,073 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 320 transitions. [2022-10-15 16:31:54,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-15 16:31:54,076 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:54,076 INFO L195 NwaCegarLoop]: trace histogram [2, 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, 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 16:31:54,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 16:31:54,077 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:54,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:54,078 INFO L85 PathProgramCache]: Analyzing trace with hash 2033157093, now seen corresponding path program 1 times [2022-10-15 16:31:54,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:54,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008452094] [2022-10-15 16:31:54,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:54,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:54,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:54,240 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:31:54,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:54,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008452094] [2022-10-15 16:31:54,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008452094] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:54,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:54,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:54,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655965613] [2022-10-15 16:31:54,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:54,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:54,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:54,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:54,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:54,249 INFO L87 Difference]: Start difference. First operand 197 states and 320 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:54,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:54,282 INFO L93 Difference]: Finished difference Result 380 states and 617 transitions. [2022-10-15 16:31:54,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:54,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-10-15 16:31:54,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:54,286 INFO L225 Difference]: With dead ends: 380 [2022-10-15 16:31:54,286 INFO L226 Difference]: Without dead ends: 380 [2022-10-15 16:31:54,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 16:31:54,300 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 111 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:31:54,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 475 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:31:54,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-10-15 16:31:54,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2022-10-15 16:31:54,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 379 states have (on average 1.6279683377308707) internal successors, (617), 379 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:54,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 617 transitions. [2022-10-15 16:31:54,350 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 617 transitions. Word has length 60 [2022-10-15 16:31:54,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:54,351 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 617 transitions. [2022-10-15 16:31:54,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:54,351 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 617 transitions. [2022-10-15 16:31:54,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-15 16:31:54,360 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:54,360 INFO L195 NwaCegarLoop]: trace histogram [2, 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, 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 16:31:54,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 16:31:54,360 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:54,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:54,361 INFO L85 PathProgramCache]: Analyzing trace with hash -2013663709, now seen corresponding path program 1 times [2022-10-15 16:31:54,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:54,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431145065] [2022-10-15 16:31:54,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:54,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:54,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:54,458 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:31:54,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:54,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431145065] [2022-10-15 16:31:54,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431145065] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:54,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:54,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:54,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736212681] [2022-10-15 16:31:54,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:54,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:54,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:54,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:54,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:54,464 INFO L87 Difference]: Start difference. First operand 380 states and 617 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:54,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:54,489 INFO L93 Difference]: Finished difference Result 566 states and 918 transitions. [2022-10-15 16:31:54,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:54,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-10-15 16:31:54,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:54,493 INFO L225 Difference]: With dead ends: 566 [2022-10-15 16:31:54,494 INFO L226 Difference]: Without dead ends: 566 [2022-10-15 16:31:54,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 16:31:54,495 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 148 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:31:54,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 330 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:31:54,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-10-15 16:31:54,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2022-10-15 16:31:54,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 565 states have (on average 1.6247787610619469) internal successors, (918), 565 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:54,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 918 transitions. [2022-10-15 16:31:54,516 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 918 transitions. Word has length 60 [2022-10-15 16:31:54,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:54,516 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 918 transitions. [2022-10-15 16:31:54,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:54,517 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 918 transitions. [2022-10-15 16:31:54,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-10-15 16:31:54,521 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:54,521 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:31:54,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 16:31:54,522 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:54,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:54,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1930486570, now seen corresponding path program 1 times [2022-10-15 16:31:54,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:54,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239407969] [2022-10-15 16:31:54,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:54,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:54,676 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-15 16:31:54,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:54,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239407969] [2022-10-15 16:31:54,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239407969] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:54,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:54,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:54,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385630885] [2022-10-15 16:31:54,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:54,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:54,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:54,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:54,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:54,680 INFO L87 Difference]: Start difference. First operand 566 states and 918 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:54,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:54,839 INFO L93 Difference]: Finished difference Result 778 states and 1137 transitions. [2022-10-15 16:31:54,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:54,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-10-15 16:31:54,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:54,844 INFO L225 Difference]: With dead ends: 778 [2022-10-15 16:31:54,844 INFO L226 Difference]: Without dead ends: 778 [2022-10-15 16:31:54,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 16:31:54,846 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 43 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:31:54,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 263 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:31:54,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2022-10-15 16:31:54,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 766. [2022-10-15 16:31:54,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 765 states have (on average 1.461437908496732) internal successors, (1118), 765 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:54,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1118 transitions. [2022-10-15 16:31:54,898 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1118 transitions. Word has length 97 [2022-10-15 16:31:54,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:54,899 INFO L495 AbstractCegarLoop]: Abstraction has 766 states and 1118 transitions. [2022-10-15 16:31:54,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:54,899 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1118 transitions. [2022-10-15 16:31:54,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-10-15 16:31:54,903 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:54,903 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:31:54,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 16:31:54,904 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:54,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:54,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1496757484, now seen corresponding path program 1 times [2022-10-15 16:31:54,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:54,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612009785] [2022-10-15 16:31:54,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:54,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:55,052 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-15 16:31:55,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:55,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612009785] [2022-10-15 16:31:55,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612009785] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:55,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:55,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:55,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382558489] [2022-10-15 16:31:55,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:55,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:55,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:55,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:55,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:55,057 INFO L87 Difference]: Start difference. First operand 766 states and 1118 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:55,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:55,210 INFO L93 Difference]: Finished difference Result 895 states and 1317 transitions. [2022-10-15 16:31:55,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:55,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-10-15 16:31:55,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:55,216 INFO L225 Difference]: With dead ends: 895 [2022-10-15 16:31:55,216 INFO L226 Difference]: Without dead ends: 895 [2022-10-15 16:31:55,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 16:31:55,218 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 81 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:31:55,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 224 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:31:55,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2022-10-15 16:31:55,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 859. [2022-10-15 16:31:55,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 858 states have (on average 1.456876456876457) internal successors, (1250), 858 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:55,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1250 transitions. [2022-10-15 16:31:55,240 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1250 transitions. Word has length 97 [2022-10-15 16:31:55,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:55,241 INFO L495 AbstractCegarLoop]: Abstraction has 859 states and 1250 transitions. [2022-10-15 16:31:55,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:55,242 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1250 transitions. [2022-10-15 16:31:55,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-15 16:31:55,244 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:55,245 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:31:55,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 16:31:55,245 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:55,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:55,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1340556462, now seen corresponding path program 1 times [2022-10-15 16:31:55,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:55,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527635315] [2022-10-15 16:31:55,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:55,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:55,330 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-10-15 16:31:55,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:55,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527635315] [2022-10-15 16:31:55,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527635315] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:55,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:55,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:55,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929515906] [2022-10-15 16:31:55,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:55,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:55,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:55,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:55,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:55,333 INFO L87 Difference]: Start difference. First operand 859 states and 1250 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:55,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:55,362 INFO L93 Difference]: Finished difference Result 1153 states and 1681 transitions. [2022-10-15 16:31:55,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:55,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-10-15 16:31:55,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:55,369 INFO L225 Difference]: With dead ends: 1153 [2022-10-15 16:31:55,369 INFO L226 Difference]: Without dead ends: 1153 [2022-10-15 16:31:55,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 16:31:55,371 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 111 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:31:55,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 484 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:31:55,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2022-10-15 16:31:55,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1153. [2022-10-15 16:31:55,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 1152 states have (on average 1.4592013888888888) internal successors, (1681), 1152 states have internal predecessors, (1681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:55,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1681 transitions. [2022-10-15 16:31:55,400 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1681 transitions. Word has length 121 [2022-10-15 16:31:55,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:55,401 INFO L495 AbstractCegarLoop]: Abstraction has 1153 states and 1681 transitions. [2022-10-15 16:31:55,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:55,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1681 transitions. [2022-10-15 16:31:55,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-15 16:31:55,404 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:55,404 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:31:55,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 16:31:55,405 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:55,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:55,405 INFO L85 PathProgramCache]: Analyzing trace with hash 2057017556, now seen corresponding path program 1 times [2022-10-15 16:31:55,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:55,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318822524] [2022-10-15 16:31:55,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:55,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:55,474 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-15 16:31:55,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:55,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318822524] [2022-10-15 16:31:55,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318822524] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:55,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:55,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:55,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755074576] [2022-10-15 16:31:55,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:55,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:55,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:55,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:55,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:55,477 INFO L87 Difference]: Start difference. First operand 1153 states and 1681 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:55,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:55,507 INFO L93 Difference]: Finished difference Result 1410 states and 2071 transitions. [2022-10-15 16:31:55,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:55,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-10-15 16:31:55,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:55,515 INFO L225 Difference]: With dead ends: 1410 [2022-10-15 16:31:55,515 INFO L226 Difference]: Without dead ends: 1410 [2022-10-15 16:31:55,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 16:31:55,516 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 113 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:31:55,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 485 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:31:55,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2022-10-15 16:31:55,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1410. [2022-10-15 16:31:55,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1409 states have (on average 1.4698367636621719) internal successors, (2071), 1409 states have internal predecessors, (2071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:55,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 2071 transitions. [2022-10-15 16:31:55,551 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 2071 transitions. Word has length 121 [2022-10-15 16:31:55,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:55,551 INFO L495 AbstractCegarLoop]: Abstraction has 1410 states and 2071 transitions. [2022-10-15 16:31:55,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:55,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 2071 transitions. [2022-10-15 16:31:55,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-10-15 16:31:55,556 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:55,556 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2022-10-15 16:31:55,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 16:31:55,557 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:55,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:55,558 INFO L85 PathProgramCache]: Analyzing trace with hash -860101462, now seen corresponding path program 1 times [2022-10-15 16:31:55,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:55,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499702170] [2022-10-15 16:31:55,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:55,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:55,692 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 299 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-10-15 16:31:55,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:55,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499702170] [2022-10-15 16:31:55,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499702170] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:55,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:55,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:55,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868053444] [2022-10-15 16:31:55,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:55,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:55,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:55,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:55,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:55,695 INFO L87 Difference]: Start difference. First operand 1410 states and 2071 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:55,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:55,837 INFO L93 Difference]: Finished difference Result 1615 states and 2301 transitions. [2022-10-15 16:31:55,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:55,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 225 [2022-10-15 16:31:55,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:55,846 INFO L225 Difference]: With dead ends: 1615 [2022-10-15 16:31:55,846 INFO L226 Difference]: Without dead ends: 1565 [2022-10-15 16:31:55,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 16:31:55,848 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 34 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:31:55,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 255 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:31:55,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2022-10-15 16:31:55,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1565. [2022-10-15 16:31:55,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 1.4392583120204603) internal successors, (2251), 1564 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:55,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 2251 transitions. [2022-10-15 16:31:55,897 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 2251 transitions. Word has length 225 [2022-10-15 16:31:55,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:55,897 INFO L495 AbstractCegarLoop]: Abstraction has 1565 states and 2251 transitions. [2022-10-15 16:31:55,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:55,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 2251 transitions. [2022-10-15 16:31:55,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-10-15 16:31:55,908 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:55,908 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:31:55,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 16:31:55,909 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:55,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:55,910 INFO L85 PathProgramCache]: Analyzing trace with hash -482554043, now seen corresponding path program 1 times [2022-10-15 16:31:55,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:55,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793956828] [2022-10-15 16:31:55,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:55,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:55,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:56,132 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-10-15 16:31:56,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:56,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793956828] [2022-10-15 16:31:56,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793956828] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:31:56,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524783289] [2022-10-15 16:31:56,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:56,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:31:56,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:31:56,141 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 16:31:56,160 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 16:31:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:56,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 16:31:56,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:31:56,514 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-10-15 16:31:56,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:31:56,636 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 430 proven. 16 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-10-15 16:31:56,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524783289] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:31:56,636 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 16:31:56,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-10-15 16:31:56,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208936172] [2022-10-15 16:31:56,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 16:31:56,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 16:31:56,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:56,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 16:31:56,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 16:31:56,639 INFO L87 Difference]: Start difference. First operand 1565 states and 2251 transitions. Second operand has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:57,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:57,320 INFO L93 Difference]: Finished difference Result 4518 states and 6187 transitions. [2022-10-15 16:31:57,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 16:31:57,321 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2022-10-15 16:31:57,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:57,344 INFO L225 Difference]: With dead ends: 4518 [2022-10-15 16:31:57,345 INFO L226 Difference]: Without dead ends: 4518 [2022-10-15 16:31:57,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 507 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-10-15 16:31:57,346 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 350 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-15 16:31:57,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 953 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-15 16:31:57,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4518 states. [2022-10-15 16:31:57,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4518 to 3398. [2022-10-15 16:31:57,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3398 states, 3397 states have (on average 1.40270827200471) internal successors, (4765), 3397 states have internal predecessors, (4765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:57,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3398 states to 3398 states and 4765 transitions. [2022-10-15 16:31:57,442 INFO L78 Accepts]: Start accepts. Automaton has 3398 states and 4765 transitions. Word has length 253 [2022-10-15 16:31:57,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:57,443 INFO L495 AbstractCegarLoop]: Abstraction has 3398 states and 4765 transitions. [2022-10-15 16:31:57,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:57,444 INFO L276 IsEmpty]: Start isEmpty. Operand 3398 states and 4765 transitions. [2022-10-15 16:31:57,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-10-15 16:31:57,453 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:57,454 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:31:57,503 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 16:31:57,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-15 16:31:57,668 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:57,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:57,669 INFO L85 PathProgramCache]: Analyzing trace with hash -193734653, now seen corresponding path program 1 times [2022-10-15 16:31:57,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:57,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195113278] [2022-10-15 16:31:57,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:57,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:57,842 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-10-15 16:31:57,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:57,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195113278] [2022-10-15 16:31:57,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195113278] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:57,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:57,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:57,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36490473] [2022-10-15 16:31:57,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:57,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:57,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:57,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:57,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:57,845 INFO L87 Difference]: Start difference. First operand 3398 states and 4765 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:57,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:57,898 INFO L93 Difference]: Finished difference Result 6291 states and 8915 transitions. [2022-10-15 16:31:57,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:57,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2022-10-15 16:31:57,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:57,920 INFO L225 Difference]: With dead ends: 6291 [2022-10-15 16:31:57,921 INFO L226 Difference]: Without dead ends: 4220 [2022-10-15 16:31:57,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 16:31:57,922 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 109 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:31:57,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 492 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:31:57,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4220 states. [2022-10-15 16:31:58,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4220 to 3918. [2022-10-15 16:31:58,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3918 states, 3917 states have (on average 1.4237937196834312) internal successors, (5577), 3917 states have internal predecessors, (5577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:58,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3918 states to 3918 states and 5577 transitions. [2022-10-15 16:31:58,033 INFO L78 Accepts]: Start accepts. Automaton has 3918 states and 5577 transitions. Word has length 253 [2022-10-15 16:31:58,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:58,033 INFO L495 AbstractCegarLoop]: Abstraction has 3918 states and 5577 transitions. [2022-10-15 16:31:58,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:58,034 INFO L276 IsEmpty]: Start isEmpty. Operand 3918 states and 5577 transitions. [2022-10-15 16:31:58,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-10-15 16:31:58,043 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:58,043 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:31:58,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 16:31:58,044 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:58,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:58,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1163625151, now seen corresponding path program 1 times [2022-10-15 16:31:58,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:58,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447809835] [2022-10-15 16:31:58,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:58,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:58,167 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-10-15 16:31:58,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:58,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447809835] [2022-10-15 16:31:58,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447809835] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:58,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:58,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:58,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385516532] [2022-10-15 16:31:58,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:58,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:58,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:58,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:58,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:58,170 INFO L87 Difference]: Start difference. First operand 3918 states and 5577 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:58,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:58,299 INFO L93 Difference]: Finished difference Result 4098 states and 5801 transitions. [2022-10-15 16:31:58,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:58,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2022-10-15 16:31:58,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:58,321 INFO L225 Difference]: With dead ends: 4098 [2022-10-15 16:31:58,321 INFO L226 Difference]: Without dead ends: 4098 [2022-10-15 16:31:58,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 16:31:58,322 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 12 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:31:58,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 272 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:31:58,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2022-10-15 16:31:58,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 4056. [2022-10-15 16:31:58,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4056 states, 4055 states have (on average 1.4167694204685573) internal successors, (5745), 4055 states have internal predecessors, (5745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:58,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4056 states to 4056 states and 5745 transitions. [2022-10-15 16:31:58,477 INFO L78 Accepts]: Start accepts. Automaton has 4056 states and 5745 transitions. Word has length 253 [2022-10-15 16:31:58,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:58,478 INFO L495 AbstractCegarLoop]: Abstraction has 4056 states and 5745 transitions. [2022-10-15 16:31:58,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:58,478 INFO L276 IsEmpty]: Start isEmpty. Operand 4056 states and 5745 transitions. [2022-10-15 16:31:58,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-10-15 16:31:58,490 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:58,491 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:31:58,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 16:31:58,491 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:58,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:58,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1335839441, now seen corresponding path program 1 times [2022-10-15 16:31:58,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:58,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449892013] [2022-10-15 16:31:58,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:58,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:58,635 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 369 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-10-15 16:31:58,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:58,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449892013] [2022-10-15 16:31:58,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449892013] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:58,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:58,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:58,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788250775] [2022-10-15 16:31:58,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:58,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:58,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:58,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:58,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:58,638 INFO L87 Difference]: Start difference. First operand 4056 states and 5745 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:58,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:58,762 INFO L93 Difference]: Finished difference Result 4574 states and 6445 transitions. [2022-10-15 16:31:58,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:58,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 273 [2022-10-15 16:31:58,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:58,785 INFO L225 Difference]: With dead ends: 4574 [2022-10-15 16:31:58,785 INFO L226 Difference]: Without dead ends: 4574 [2022-10-15 16:31:58,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 16:31:58,787 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 28 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:31:58,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 272 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:31:58,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4574 states. [2022-10-15 16:31:58,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4574 to 4406. [2022-10-15 16:31:58,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4406 states, 4405 states have (on average 1.3995459704880817) internal successors, (6165), 4405 states have internal predecessors, (6165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:58,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4406 states to 4406 states and 6165 transitions. [2022-10-15 16:31:58,902 INFO L78 Accepts]: Start accepts. Automaton has 4406 states and 6165 transitions. Word has length 273 [2022-10-15 16:31:58,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:58,902 INFO L495 AbstractCegarLoop]: Abstraction has 4406 states and 6165 transitions. [2022-10-15 16:31:58,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:58,903 INFO L276 IsEmpty]: Start isEmpty. Operand 4406 states and 6165 transitions. [2022-10-15 16:31:58,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-10-15 16:31:58,912 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:58,913 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:31:58,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 16:31:58,913 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:58,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:58,914 INFO L85 PathProgramCache]: Analyzing trace with hash -257796221, now seen corresponding path program 1 times [2022-10-15 16:31:58,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:58,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687726719] [2022-10-15 16:31:58,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:58,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:59,111 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 493 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-10-15 16:31:59,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:59,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687726719] [2022-10-15 16:31:59,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687726719] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:59,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:59,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:59,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662024600] [2022-10-15 16:31:59,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:59,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:59,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:59,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:59,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:59,120 INFO L87 Difference]: Start difference. First operand 4406 states and 6165 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:59,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:59,280 INFO L93 Difference]: Finished difference Result 4868 states and 6767 transitions. [2022-10-15 16:31:59,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:59,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 299 [2022-10-15 16:31:59,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:59,309 INFO L225 Difference]: With dead ends: 4868 [2022-10-15 16:31:59,309 INFO L226 Difference]: Without dead ends: 4868 [2022-10-15 16:31:59,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 16:31:59,310 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 17 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:31:59,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 272 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:31:59,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4868 states. [2022-10-15 16:31:59,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4868 to 4784. [2022-10-15 16:31:59,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4784 states, 4783 states have (on average 1.382605059586034) internal successors, (6613), 4783 states have internal predecessors, (6613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:59,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4784 states to 4784 states and 6613 transitions. [2022-10-15 16:31:59,460 INFO L78 Accepts]: Start accepts. Automaton has 4784 states and 6613 transitions. Word has length 299 [2022-10-15 16:31:59,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:59,461 INFO L495 AbstractCegarLoop]: Abstraction has 4784 states and 6613 transitions. [2022-10-15 16:31:59,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:59,461 INFO L276 IsEmpty]: Start isEmpty. Operand 4784 states and 6613 transitions. [2022-10-15 16:31:59,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-10-15 16:31:59,480 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:59,481 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 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, 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 16:31:59,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 16:31:59,481 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:59,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:59,482 INFO L85 PathProgramCache]: Analyzing trace with hash 212293102, now seen corresponding path program 1 times [2022-10-15 16:31:59,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:59,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2504358] [2022-10-15 16:31:59,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:59,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:59,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 627 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2022-10-15 16:31:59,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:59,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2504358] [2022-10-15 16:31:59,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2504358] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:59,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:59,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:59,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155582774] [2022-10-15 16:31:59,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:59,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:59,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:59,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:59,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:59,698 INFO L87 Difference]: Start difference. First operand 4784 states and 6613 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:31:59,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:59,859 INFO L93 Difference]: Finished difference Result 5204 states and 7103 transitions. [2022-10-15 16:31:59,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:59,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 322 [2022-10-15 16:31:59,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:59,881 INFO L225 Difference]: With dead ends: 5204 [2022-10-15 16:31:59,882 INFO L226 Difference]: Without dead ends: 5204 [2022-10-15 16:31:59,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 16:31:59,883 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 10 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:31:59,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 272 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:31:59,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5204 states. [2022-10-15 16:31:59,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5204 to 4391. [2022-10-15 16:32:00,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4391 states, 4390 states have (on average 1.3824601366742597) internal successors, (6069), 4390 states have internal predecessors, (6069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:32:00,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 6069 transitions. [2022-10-15 16:32:00,030 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 6069 transitions. Word has length 322 [2022-10-15 16:32:00,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:32:00,031 INFO L495 AbstractCegarLoop]: Abstraction has 4391 states and 6069 transitions. [2022-10-15 16:32:00,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:32:00,032 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 6069 transitions. [2022-10-15 16:32:00,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-10-15 16:32:00,044 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:32:00,044 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 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, 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 16:32:00,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 16:32:00,045 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:32:00,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:32:00,046 INFO L85 PathProgramCache]: Analyzing trace with hash -812160295, now seen corresponding path program 1 times [2022-10-15 16:32:00,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:32:00,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142956235] [2022-10-15 16:32:00,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:32:00,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:32:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:32:00,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 609 trivial. 0 not checked. [2022-10-15 16:32:00,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:32:00,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142956235] [2022-10-15 16:32:00,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142956235] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:32:00,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:32:00,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:32:00,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506985680] [2022-10-15 16:32:00,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:32:00,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:32:00,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:32:00,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:32:00,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:32:00,272 INFO L87 Difference]: Start difference. First operand 4391 states and 6069 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:32:00,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:32:00,334 INFO L93 Difference]: Finished difference Result 8760 states and 12091 transitions. [2022-10-15 16:32:00,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:32:00,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 354 [2022-10-15 16:32:00,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:32:00,354 INFO L225 Difference]: With dead ends: 8760 [2022-10-15 16:32:00,355 INFO L226 Difference]: Without dead ends: 8760 [2022-10-15 16:32:00,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 16:32:00,356 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 125 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:32:00,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 486 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:32:00,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8760 states. [2022-10-15 16:32:00,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8760 to 8575. [2022-10-15 16:32:00,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8575 states, 8574 states have (on average 1.385117797993935) internal successors, (11876), 8574 states have internal predecessors, (11876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:32:00,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8575 states to 8575 states and 11876 transitions. [2022-10-15 16:32:00,576 INFO L78 Accepts]: Start accepts. Automaton has 8575 states and 11876 transitions. Word has length 354 [2022-10-15 16:32:00,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:32:00,577 INFO L495 AbstractCegarLoop]: Abstraction has 8575 states and 11876 transitions. [2022-10-15 16:32:00,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:32:00,577 INFO L276 IsEmpty]: Start isEmpty. Operand 8575 states and 11876 transitions. [2022-10-15 16:32:00,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-10-15 16:32:00,593 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:32:00,593 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 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, 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 16:32:00,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 16:32:00,594 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:32:00,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:32:00,594 INFO L85 PathProgramCache]: Analyzing trace with hash 209922624, now seen corresponding path program 1 times [2022-10-15 16:32:00,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:32:00,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654437567] [2022-10-15 16:32:00,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:32:00,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:32:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:32:00,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 871 proven. 26 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2022-10-15 16:32:00,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:32:00,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654437567] [2022-10-15 16:32:00,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654437567] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:32:00,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440414922] [2022-10-15 16:32:00,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:32:00,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:32:00,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:32:00,827 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 16:32:00,836 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 16:32:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:32:00,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 16:32:00,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:32:01,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 680 proven. 0 refuted. 0 times theorem prover too weak. 621 trivial. 0 not checked. [2022-10-15 16:32:01,387 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 16:32:01,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440414922] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:32:01,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 16:32:01,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-15 16:32:01,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106251933] [2022-10-15 16:32:01,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:32:01,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:32:01,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:32:01,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:32:01,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 16:32:01,391 INFO L87 Difference]: Start difference. First operand 8575 states and 11876 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:32:01,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:32:01,448 INFO L93 Difference]: Finished difference Result 8530 states and 11868 transitions. [2022-10-15 16:32:01,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:32:01,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 355 [2022-10-15 16:32:01,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:32:01,474 INFO L225 Difference]: With dead ends: 8530 [2022-10-15 16:32:01,475 INFO L226 Difference]: Without dead ends: 8530 [2022-10-15 16:32:01,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 355 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 16:32:01,477 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 83 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:32:01,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 480 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:32:01,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8530 states. [2022-10-15 16:32:01,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8530 to 6140. [2022-10-15 16:32:01,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6140 states, 6139 states have (on average 1.3924091871640332) internal successors, (8548), 6139 states have internal predecessors, (8548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:32:01,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6140 states to 6140 states and 8548 transitions. [2022-10-15 16:32:01,656 INFO L78 Accepts]: Start accepts. Automaton has 6140 states and 8548 transitions. Word has length 355 [2022-10-15 16:32:01,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:32:01,657 INFO L495 AbstractCegarLoop]: Abstraction has 6140 states and 8548 transitions. [2022-10-15 16:32:01,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:32:01,657 INFO L276 IsEmpty]: Start isEmpty. Operand 6140 states and 8548 transitions. [2022-10-15 16:32:01,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2022-10-15 16:32:01,677 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:32:01,677 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:32:01,733 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 16:32:01,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-15 16:32:01,891 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:32:01,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:32:01,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1965226690, now seen corresponding path program 1 times [2022-10-15 16:32:01,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:32:01,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050516411] [2022-10-15 16:32:01,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:32:01,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:32:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:32:02,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 1251 proven. 26 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2022-10-15 16:32:02,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:32:02,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050516411] [2022-10-15 16:32:02,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050516411] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:32:02,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916807247] [2022-10-15 16:32:02,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:32:02,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:32:02,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:32:02,165 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 16:32:02,168 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 16:32:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:32:02,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 16:32:02,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:32:02,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 1251 proven. 26 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2022-10-15 16:32:02,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:32:02,590 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 1251 proven. 26 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2022-10-15 16:32:02,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916807247] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:32:02,591 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 16:32:02,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-10-15 16:32:02,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850193325] [2022-10-15 16:32:02,592 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 16:32:02,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 16:32:02,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:32:02,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 16:32:02,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 16:32:02,594 INFO L87 Difference]: Start difference. First operand 6140 states and 8548 transitions. Second operand has 6 states, 6 states have (on average 42.833333333333336) internal successors, (257), 6 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:32:03,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:32:03,012 INFO L93 Difference]: Finished difference Result 7716 states and 10411 transitions. [2022-10-15 16:32:03,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 16:32:03,013 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 42.833333333333336) internal successors, (257), 6 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 417 [2022-10-15 16:32:03,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:32:03,030 INFO L225 Difference]: With dead ends: 7716 [2022-10-15 16:32:03,030 INFO L226 Difference]: Without dead ends: 7414 [2022-10-15 16:32:03,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 840 GetRequests, 834 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-15 16:32:03,031 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 452 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 16:32:03,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 431 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 16:32:03,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7414 states. [2022-10-15 16:32:03,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7414 to 6032. [2022-10-15 16:32:03,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6032 states, 6031 states have (on average 1.3669374896368762) internal successors, (8244), 6031 states have internal predecessors, (8244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:32:03,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6032 states to 6032 states and 8244 transitions. [2022-10-15 16:32:03,168 INFO L78 Accepts]: Start accepts. Automaton has 6032 states and 8244 transitions. Word has length 417 [2022-10-15 16:32:03,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:32:03,169 INFO L495 AbstractCegarLoop]: Abstraction has 6032 states and 8244 transitions. [2022-10-15 16:32:03,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.833333333333336) internal successors, (257), 6 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:32:03,170 INFO L276 IsEmpty]: Start isEmpty. Operand 6032 states and 8244 transitions. [2022-10-15 16:32:03,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2022-10-15 16:32:03,191 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:32:03,191 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2022-10-15 16:32:03,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-10-15 16:32:03,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:32:03,406 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:32:03,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:32:03,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1529804208, now seen corresponding path program 1 times [2022-10-15 16:32:03,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:32:03,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410714136] [2022-10-15 16:32:03,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:32:03,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:32:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:32:03,991 INFO L134 CoverageAnalysis]: Checked inductivity of 3138 backedges. 1660 proven. 77 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2022-10-15 16:32:03,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:32:03,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410714136] [2022-10-15 16:32:03,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410714136] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:32:03,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75426592] [2022-10-15 16:32:03,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:32:03,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:32:03,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:32:03,995 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 16:32:04,006 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 16:32:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:32:04,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 16:32:04,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:32:04,226 INFO L134 CoverageAnalysis]: Checked inductivity of 3138 backedges. 1671 proven. 0 refuted. 0 times theorem prover too weak. 1467 trivial. 0 not checked. [2022-10-15 16:32:04,227 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 16:32:04,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75426592] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:32:04,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 16:32:04,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-15 16:32:04,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242286205] [2022-10-15 16:32:04,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:32:04,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:32:04,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:32:04,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:32:04,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 16:32:04,233 INFO L87 Difference]: Start difference. First operand 6032 states and 8244 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:32:04,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:32:04,405 INFO L93 Difference]: Finished difference Result 6462 states and 8861 transitions. [2022-10-15 16:32:04,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:32:04,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 509 [2022-10-15 16:32:04,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:32:04,419 INFO L225 Difference]: With dead ends: 6462 [2022-10-15 16:32:04,419 INFO L226 Difference]: Without dead ends: 6462 [2022-10-15 16:32:04,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 510 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 16:32:04,420 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 92 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:32:04,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 216 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:32:04,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6462 states. [2022-10-15 16:32:04,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6462 to 6266. [2022-10-15 16:32:04,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6266 states, 6265 states have (on average 1.3661612130885874) internal successors, (8559), 6265 states have internal predecessors, (8559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:32:04,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6266 states to 6266 states and 8559 transitions. [2022-10-15 16:32:04,541 INFO L78 Accepts]: Start accepts. Automaton has 6266 states and 8559 transitions. Word has length 509 [2022-10-15 16:32:04,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:32:04,542 INFO L495 AbstractCegarLoop]: Abstraction has 6266 states and 8559 transitions. [2022-10-15 16:32:04,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:32:04,542 INFO L276 IsEmpty]: Start isEmpty. Operand 6266 states and 8559 transitions. [2022-10-15 16:32:04,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2022-10-15 16:32:04,565 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:32:04,566 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 16, 14, 14, 12, 12, 10, 10, 8, 8, 8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:32:04,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 16:32:04,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:32:04,780 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:32:04,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:32:04,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1911316890, now seen corresponding path program 1 times [2022-10-15 16:32:04,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:32:04,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26846426] [2022-10-15 16:32:04,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:32:04,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:32:04,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:32:05,458 INFO L134 CoverageAnalysis]: Checked inductivity of 3204 backedges. 1744 proven. 206 refuted. 0 times theorem prover too weak. 1254 trivial. 0 not checked. [2022-10-15 16:32:05,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:32:05,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26846426] [2022-10-15 16:32:05,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26846426] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:32:05,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18999607] [2022-10-15 16:32:05,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:32:05,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:32:05,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:32:05,461 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 16:32:05,486 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 16:32:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:32:05,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 16:32:05,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:32:07,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3204 backedges. 1792 proven. 239 refuted. 0 times theorem prover too weak. 1173 trivial. 0 not checked. [2022-10-15 16:32:07,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:32:08,758 INFO L134 CoverageAnalysis]: Checked inductivity of 3204 backedges. 1887 proven. 144 refuted. 0 times theorem prover too weak. 1173 trivial. 0 not checked. [2022-10-15 16:32:08,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18999607] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:32:08,759 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 16:32:08,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-15 16:32:08,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817040974] [2022-10-15 16:32:08,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 16:32:08,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-15 16:32:08,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:32:08,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-15 16:32:08,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-10-15 16:32:08,763 INFO L87 Difference]: Start difference. First operand 6266 states and 8559 transitions. Second operand has 11 states, 11 states have (on average 38.0) internal successors, (418), 11 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:32:11,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:32:11,719 INFO L93 Difference]: Finished difference Result 20632 states and 27441 transitions. [2022-10-15 16:32:11,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-15 16:32:11,720 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 38.0) internal successors, (418), 11 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 513 [2022-10-15 16:32:11,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:32:11,763 INFO L225 Difference]: With dead ends: 20632 [2022-10-15 16:32:11,763 INFO L226 Difference]: Without dead ends: 20476 [2022-10-15 16:32:11,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1058 GetRequests, 1033 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=417, Unknown=0, NotChecked=0, Total=600 [2022-10-15 16:32:11,765 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 1071 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 2069 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 2949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 2069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 658 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-10-15 16:32:11,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 1869 Invalid, 2949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 2069 Invalid, 0 Unknown, 658 Unchecked, 2.2s Time] [2022-10-15 16:32:11,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20476 states. [2022-10-15 16:32:12,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20476 to 19067. [2022-10-15 16:32:12,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19067 states, 19066 states have (on average 1.3313227735235498) internal successors, (25383), 19066 states have internal predecessors, (25383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:32:12,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19067 states to 19067 states and 25383 transitions. [2022-10-15 16:32:12,111 INFO L78 Accepts]: Start accepts. Automaton has 19067 states and 25383 transitions. Word has length 513 [2022-10-15 16:32:12,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:32:12,111 INFO L495 AbstractCegarLoop]: Abstraction has 19067 states and 25383 transitions. [2022-10-15 16:32:12,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 38.0) internal successors, (418), 11 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:32:12,112 INFO L276 IsEmpty]: Start isEmpty. Operand 19067 states and 25383 transitions. [2022-10-15 16:32:12,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2022-10-15 16:32:12,171 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:32:12,173 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 18, 16, 16, 14, 14, 12, 12, 10, 10, 10, 10, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2022-10-15 16:32:12,233 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 16:32:12,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:32:12,393 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:32:12,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:32:12,394 INFO L85 PathProgramCache]: Analyzing trace with hash 944376353, now seen corresponding path program 2 times [2022-10-15 16:32:12,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:32:12,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542815853] [2022-10-15 16:32:12,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:32:12,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:32:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:32:12,760 INFO L134 CoverageAnalysis]: Checked inductivity of 4078 backedges. 1321 proven. 16 refuted. 0 times theorem prover too weak. 2741 trivial. 0 not checked. [2022-10-15 16:32:12,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:32:12,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542815853] [2022-10-15 16:32:12,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542815853] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:32:12,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563306899] [2022-10-15 16:32:12,761 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 16:32:12,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:32:12,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:32:12,763 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 16:32:12,788 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 16:32:12,962 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 16:32:12,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 16:32:12,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 16:32:12,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:32:13,048 INFO L134 CoverageAnalysis]: Checked inductivity of 4078 backedges. 1321 proven. 16 refuted. 0 times theorem prover too weak. 2741 trivial. 0 not checked. [2022-10-15 16:32:13,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:32:13,133 INFO L134 CoverageAnalysis]: Checked inductivity of 4078 backedges. 1321 proven. 16 refuted. 0 times theorem prover too weak. 2741 trivial. 0 not checked. [2022-10-15 16:32:13,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563306899] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:32:13,133 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 16:32:13,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-10-15 16:32:13,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350200425] [2022-10-15 16:32:13,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 16:32:13,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 16:32:13,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:32:13,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 16:32:13,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-15 16:32:13,136 INFO L87 Difference]: Start difference. First operand 19067 states and 25383 transitions. Second operand has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:32:13,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:32:13,589 INFO L93 Difference]: Finished difference Result 10551 states and 13097 transitions. [2022-10-15 16:32:13,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 16:32:13,593 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 583 [2022-10-15 16:32:13,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:32:13,594 INFO L225 Difference]: With dead ends: 10551 [2022-10-15 16:32:13,594 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 16:32:13,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1176 GetRequests, 1166 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-10-15 16:32:13,596 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 262 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 16:32:13,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 728 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 16:32:13,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 16:32:13,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 16:32:13,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:32:13,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 16:32:13,598 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 583 [2022-10-15 16:32:13,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:32:13,598 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 16:32:13,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 16:32:13,598 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 16:32:13,599 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 16:32:13,602 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-10-15 16:32:13,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-10-15 16:32:13,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 16:32:13,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:32:13,822 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:32:13,824 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 16:32:13,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:32:13 BoogieIcfgContainer [2022-10-15 16:32:13,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 16:32:13,829 INFO L158 Benchmark]: Toolchain (without parser) took 23343.18ms. Allocated memory was 151.0MB in the beginning and 382.7MB in the end (delta: 231.7MB). Free memory was 124.8MB in the beginning and 142.6MB in the end (delta: -17.8MB). Peak memory consumption was 215.1MB. Max. memory is 8.0GB. [2022-10-15 16:32:13,829 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 151.0MB. Free memory was 120.9MB in the beginning and 120.8MB in the end (delta: 89.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 16:32:13,830 INFO L158 Benchmark]: CACSL2BoogieTranslator took 617.33ms. Allocated memory is still 151.0MB. Free memory was 124.6MB in the beginning and 109.4MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-10-15 16:32:13,830 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.36ms. Allocated memory is still 151.0MB. Free memory was 109.2MB in the beginning and 106.4MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-10-15 16:32:13,830 INFO L158 Benchmark]: Boogie Preprocessor took 46.88ms. Allocated memory is still 151.0MB. Free memory was 106.4MB in the beginning and 104.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 16:32:13,831 INFO L158 Benchmark]: RCFGBuilder took 1042.51ms. Allocated memory is still 151.0MB. Free memory was 104.2MB in the beginning and 104.1MB in the end (delta: 41.5kB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. [2022-10-15 16:32:13,831 INFO L158 Benchmark]: TraceAbstraction took 21520.35ms. Allocated memory was 151.0MB in the beginning and 382.7MB in the end (delta: 231.7MB). Free memory was 103.6MB in the beginning and 142.6MB in the end (delta: -39.0MB). Peak memory consumption was 193.8MB. Max. memory is 8.0GB. [2022-10-15 16:32:13,833 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 151.0MB. Free memory was 120.9MB in the beginning and 120.8MB in the end (delta: 89.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 617.33ms. Allocated memory is still 151.0MB. Free memory was 124.6MB in the beginning and 109.4MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 98.36ms. Allocated memory is still 151.0MB. Free memory was 109.2MB in the beginning and 106.4MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.88ms. Allocated memory is still 151.0MB. Free memory was 106.4MB in the beginning and 104.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1042.51ms. Allocated memory is still 151.0MB. Free memory was 104.2MB in the beginning and 104.1MB in the end (delta: 41.5kB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. * TraceAbstraction took 21520.35ms. Allocated memory was 151.0MB in the beginning and 382.7MB in the end (delta: 231.7MB). Free memory was 103.6MB in the beginning and 142.6MB in the end (delta: -39.0MB). Peak memory consumption was 193.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 680]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 688]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 139 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 21.4s, OverallIterations: 22, TraceHistogramMax: 21, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.3s, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3685 SdHoareTripleChecker+Valid, 5.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3685 mSDsluCounter, 9732 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 658 IncrementalHoareTripleChecker+Unchecked, 4398 mSDsCounter, 691 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4887 IncrementalHoareTripleChecker+Invalid, 6236 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 691 mSolverCounterUnsat, 5334 mSDtfsCounter, 4887 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4506 GetRequests, 4436 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19067occurred in iteration=21, InterpolantAutomatonStates: 102, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 22 MinimizatonAttempts, 8149 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 7893 NumberOfCodeBlocks, 7893 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 9627 ConstructedInterpolants, 35 QuantifiedInterpolants, 26529 SizeOfPredicates, 9 NumberOfNonLiveVariables, 4223 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 32 InterpolantComputations, 18 PerfectInterpolantSequences, 43543/44409 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-10-15 16:32:13,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...