/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_2.BV.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 16:31:39,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 16:31:39,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 16:31:40,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 16:31:40,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 16:31:40,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 16:31:40,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 16:31:40,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 16:31:40,045 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 16:31:40,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 16:31:40,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 16:31:40,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 16:31:40,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 16:31:40,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 16:31:40,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 16:31:40,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 16:31:40,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 16:31:40,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 16:31:40,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 16:31:40,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 16:31:40,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 16:31:40,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 16:31:40,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 16:31:40,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 16:31:40,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 16:31:40,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 16:31:40,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 16:31:40,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 16:31:40,108 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 16:31:40,158 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 16:31:40,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 16:31:40,159 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 16:31:40,159 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 16:31:40,161 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 16:31:40,161 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 16:31:40,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 16:31:40,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 16:31:40,164 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 16:31:40,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 16:31:40,165 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 16:31:40,165 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 16:31:40,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 16:31:40,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 16:31:40,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 16:31:40,166 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 16:31:40,166 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 16:31:40,166 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 16:31:40,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 16:31:40,167 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 16:31:40,167 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 16:31:40,167 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 16:31:40,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 16:31:40,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 16:31:40,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 16:31:40,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:31:40,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 16:31:40,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 16:31:40,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 16:31:40,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 16:31:40,169 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 16:31:40,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 16:31:40,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 16:31:40,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 16:31:40,633 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 16:31:40,634 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 16:31:40,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/s3_srvr_2.BV.c.cil.c [2022-10-15 16:31:40,715 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/827976f93/032d242c29334ded9b4436e4f6d433a4/FLAG9e8d3405f [2022-10-15 16:31:41,330 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 16:31:41,331 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/s3_srvr_2.BV.c.cil.c [2022-10-15 16:31:41,344 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/827976f93/032d242c29334ded9b4436e4f6d433a4/FLAG9e8d3405f [2022-10-15 16:31:41,624 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/827976f93/032d242c29334ded9b4436e4f6d433a4 [2022-10-15 16:31:41,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 16:31:41,636 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 16:31:41,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 16:31:41,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 16:31:41,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 16:31:41,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:31:41" (1/1) ... [2022-10-15 16:31:41,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6de05d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:41, skipping insertion in model container [2022-10-15 16:31:41,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:31:41" (1/1) ... [2022-10-15 16:31:41,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 16:31:41,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 16:31:42,028 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_2.BV.c.cil.c[44736,44749] [2022-10-15 16:31:42,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:31:42,060 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 16:31:42,184 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_2.BV.c.cil.c[44736,44749] [2022-10-15 16:31:42,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:31:42,203 INFO L208 MainTranslator]: Completed translation [2022-10-15 16:31:42,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:42 WrapperNode [2022-10-15 16:31:42,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 16:31:42,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 16:31:42,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 16:31:42,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 16:31:42,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:42" (1/1) ... [2022-10-15 16:31:42,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:42" (1/1) ... [2022-10-15 16:31:42,271 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 535 [2022-10-15 16:31:42,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 16:31:42,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 16:31:42,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 16:31:42,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 16:31:42,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:42" (1/1) ... [2022-10-15 16:31:42,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:42" (1/1) ... [2022-10-15 16:31:42,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:42" (1/1) ... [2022-10-15 16:31:42,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:42" (1/1) ... [2022-10-15 16:31:42,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:42" (1/1) ... [2022-10-15 16:31:42,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:42" (1/1) ... [2022-10-15 16:31:42,308 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:42" (1/1) ... [2022-10-15 16:31:42,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:42" (1/1) ... [2022-10-15 16:31:42,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 16:31:42,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 16:31:42,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 16:31:42,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 16:31:42,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:42" (1/1) ... [2022-10-15 16:31:42,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:31:42,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:31:42,362 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 16:31:42,372 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 16:31:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 16:31:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 16:31:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 16:31:42,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 16:31:42,589 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 16:31:42,594 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 16:31:42,641 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-15 16:31:43,194 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-10-15 16:31:43,195 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-10-15 16:31:43,195 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 16:31:43,205 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 16:31:43,205 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 16:31:43,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:31:43 BoogieIcfgContainer [2022-10-15 16:31:43,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 16:31:43,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 16:31:43,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 16:31:43,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 16:31:43,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:31:41" (1/3) ... [2022-10-15 16:31:43,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3d1fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:31:43, skipping insertion in model container [2022-10-15 16:31:43,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:31:42" (2/3) ... [2022-10-15 16:31:43,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3d1fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:31:43, skipping insertion in model container [2022-10-15 16:31:43,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:31:43" (3/3) ... [2022-10-15 16:31:43,218 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_2.BV.c.cil.c [2022-10-15 16:31:43,239 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 16:31:43,239 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 16:31:43,299 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 16:31:43,308 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;@744441b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 16:31:43,308 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 16:31:43,314 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 16:31:43,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 16:31:43,322 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:43,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:31:43,323 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:43,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:43,330 INFO L85 PathProgramCache]: Analyzing trace with hash -437956057, now seen corresponding path program 1 times [2022-10-15 16:31:43,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:43,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398476113] [2022-10-15 16:31:43,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:43,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:43,621 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 16:31:43,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:43,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398476113] [2022-10-15 16:31:43,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398476113] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:43,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:43,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:31:43,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909657089] [2022-10-15 16:31:43,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:43,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:43,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:43,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:43,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:43,686 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 16:31:43,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:43,762 INFO L93 Difference]: Finished difference Result 132 states and 221 transitions. [2022-10-15 16:31:43,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:43,765 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 16:31:43,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:43,778 INFO L225 Difference]: With dead ends: 132 [2022-10-15 16:31:43,778 INFO L226 Difference]: Without dead ends: 114 [2022-10-15 16:31:43,780 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 16:31:43,785 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 16:31:43,786 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 16:31:43,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-10-15 16:31:43,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-10-15 16:31:43,828 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 16:31:43,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 174 transitions. [2022-10-15 16:31:43,832 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 174 transitions. Word has length 9 [2022-10-15 16:31:43,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:43,832 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 174 transitions. [2022-10-15 16:31:43,833 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 16:31:43,833 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 174 transitions. [2022-10-15 16:31:43,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-15 16:31:43,835 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:43,836 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 16:31:43,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 16:31:43,836 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:43,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:43,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1632002022, now seen corresponding path program 1 times [2022-10-15 16:31:43,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:43,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604163347] [2022-10-15 16:31:43,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:43,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:44,225 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 16:31:44,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:44,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604163347] [2022-10-15 16:31:44,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604163347] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:44,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:44,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:44,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390744401] [2022-10-15 16:31:44,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:44,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:44,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:44,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:44,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:44,230 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 16:31:44,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:44,442 INFO L93 Difference]: Finished difference Result 161 states and 253 transitions. [2022-10-15 16:31:44,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:44,443 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 16:31:44,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:44,446 INFO L225 Difference]: With dead ends: 161 [2022-10-15 16:31:44,446 INFO L226 Difference]: Without dead ends: 161 [2022-10-15 16:31:44,447 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 16:31:44,449 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 110 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 16:31:44,450 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 16:31:44,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-10-15 16:31:44,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 156. [2022-10-15 16:31:44,487 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 16:31:44,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 248 transitions. [2022-10-15 16:31:44,489 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 248 transitions. Word has length 44 [2022-10-15 16:31:44,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:44,490 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 248 transitions. [2022-10-15 16:31:44,490 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 16:31:44,490 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 248 transitions. [2022-10-15 16:31:44,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-15 16:31:44,493 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:44,493 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 16:31:44,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 16:31:44,493 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:44,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:44,494 INFO L85 PathProgramCache]: Analyzing trace with hash -954580408, now seen corresponding path program 1 times [2022-10-15 16:31:44,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:44,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546252307] [2022-10-15 16:31:44,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:44,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:44,639 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 16:31:44,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:44,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546252307] [2022-10-15 16:31:44,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546252307] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:44,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:44,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:44,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285391989] [2022-10-15 16:31:44,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:44,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:44,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:44,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:44,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:44,647 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 16:31:44,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:44,824 INFO L93 Difference]: Finished difference Result 204 states and 328 transitions. [2022-10-15 16:31:44,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:44,824 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 16:31:44,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:44,827 INFO L225 Difference]: With dead ends: 204 [2022-10-15 16:31:44,828 INFO L226 Difference]: Without dead ends: 202 [2022-10-15 16:31:44,829 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 16:31:44,831 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, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 16:31:44,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 126 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 16:31:44,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-10-15 16:31:44,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 197. [2022-10-15 16:31:44,863 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 16:31:44,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 320 transitions. [2022-10-15 16:31:44,866 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 320 transitions. Word has length 45 [2022-10-15 16:31:44,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:44,867 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 320 transitions. [2022-10-15 16:31:44,870 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 16:31:44,870 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 320 transitions. [2022-10-15 16:31:44,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-15 16:31:44,876 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:44,876 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 16:31:44,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 16:31:44,877 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:44,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:44,877 INFO L85 PathProgramCache]: Analyzing trace with hash 2033157093, now seen corresponding path program 1 times [2022-10-15 16:31:44,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:44,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194143078] [2022-10-15 16:31:44,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:44,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:44,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:45,015 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 16:31:45,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:45,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194143078] [2022-10-15 16:31:45,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194143078] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:45,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:45,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:45,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513945561] [2022-10-15 16:31:45,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:45,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:45,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:45,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:45,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:45,019 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 16:31:45,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:45,050 INFO L93 Difference]: Finished difference Result 380 states and 617 transitions. [2022-10-15 16:31:45,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:45,051 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 16:31:45,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:45,056 INFO L225 Difference]: With dead ends: 380 [2022-10-15 16:31:45,057 INFO L226 Difference]: Without dead ends: 380 [2022-10-15 16:31:45,060 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 16:31:45,070 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 16:31:45,071 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 16:31:45,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-10-15 16:31:45,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2022-10-15 16:31:45,110 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 16:31:45,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 617 transitions. [2022-10-15 16:31:45,122 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 617 transitions. Word has length 60 [2022-10-15 16:31:45,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:45,123 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 617 transitions. [2022-10-15 16:31:45,123 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 16:31:45,123 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 617 transitions. [2022-10-15 16:31:45,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-15 16:31:45,132 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:45,133 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 16:31:45,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 16:31:45,133 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:45,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:45,134 INFO L85 PathProgramCache]: Analyzing trace with hash -2013663709, now seen corresponding path program 1 times [2022-10-15 16:31:45,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:45,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988633734] [2022-10-15 16:31:45,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:45,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:45,223 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 16:31:45,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:45,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988633734] [2022-10-15 16:31:45,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988633734] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:45,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:45,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:45,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878523630] [2022-10-15 16:31:45,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:45,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:45,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:45,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:45,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:45,229 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 16:31:45,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:45,254 INFO L93 Difference]: Finished difference Result 566 states and 918 transitions. [2022-10-15 16:31:45,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:45,254 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 16:31:45,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:45,259 INFO L225 Difference]: With dead ends: 566 [2022-10-15 16:31:45,259 INFO L226 Difference]: Without dead ends: 566 [2022-10-15 16:31:45,259 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 16:31:45,266 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 16:31:45,268 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 16:31:45,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-10-15 16:31:45,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2022-10-15 16:31:45,299 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 16:31:45,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 918 transitions. [2022-10-15 16:31:45,302 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 918 transitions. Word has length 60 [2022-10-15 16:31:45,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:45,304 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 918 transitions. [2022-10-15 16:31:45,304 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 16:31:45,304 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 918 transitions. [2022-10-15 16:31:45,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-10-15 16:31:45,314 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:45,314 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 16:31:45,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 16:31:45,317 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:45,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:45,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1930486570, now seen corresponding path program 1 times [2022-10-15 16:31:45,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:45,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766701259] [2022-10-15 16:31:45,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:45,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:45,412 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 16:31:45,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:45,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766701259] [2022-10-15 16:31:45,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766701259] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:45,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:45,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:45,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302179765] [2022-10-15 16:31:45,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:45,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:45,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:45,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:45,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:45,415 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 16:31:45,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:45,578 INFO L93 Difference]: Finished difference Result 778 states and 1137 transitions. [2022-10-15 16:31:45,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:45,579 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 16:31:45,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:45,583 INFO L225 Difference]: With dead ends: 778 [2022-10-15 16:31:45,583 INFO L226 Difference]: Without dead ends: 778 [2022-10-15 16:31:45,584 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 16:31:45,585 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, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 16:31:45,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 263 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 16:31:45,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2022-10-15 16:31:45,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 766. [2022-10-15 16:31:45,602 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 16:31:45,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1118 transitions. [2022-10-15 16:31:45,605 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1118 transitions. Word has length 97 [2022-10-15 16:31:45,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:45,605 INFO L495 AbstractCegarLoop]: Abstraction has 766 states and 1118 transitions. [2022-10-15 16:31:45,605 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 16:31:45,606 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1118 transitions. [2022-10-15 16:31:45,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-10-15 16:31:45,608 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:45,608 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 16:31:45,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 16:31:45,609 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:45,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:45,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1496757484, now seen corresponding path program 1 times [2022-10-15 16:31:45,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:45,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546313178] [2022-10-15 16:31:45,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:45,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:45,690 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 16:31:45,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:45,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546313178] [2022-10-15 16:31:45,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546313178] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:45,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:45,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:45,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255087719] [2022-10-15 16:31:45,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:45,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:45,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:45,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:45,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:45,698 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 16:31:45,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:45,871 INFO L93 Difference]: Finished difference Result 895 states and 1317 transitions. [2022-10-15 16:31:45,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:45,871 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 16:31:45,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:45,878 INFO L225 Difference]: With dead ends: 895 [2022-10-15 16:31:45,879 INFO L226 Difference]: Without dead ends: 895 [2022-10-15 16:31:45,879 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 16:31:45,880 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, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 16:31:45,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 224 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 16:31:45,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2022-10-15 16:31:45,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 859. [2022-10-15 16:31:45,905 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 16:31:45,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1250 transitions. [2022-10-15 16:31:45,908 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1250 transitions. Word has length 97 [2022-10-15 16:31:45,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:45,909 INFO L495 AbstractCegarLoop]: Abstraction has 859 states and 1250 transitions. [2022-10-15 16:31:45,909 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 16:31:45,909 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1250 transitions. [2022-10-15 16:31:45,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-15 16:31:45,912 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:45,912 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 16:31:45,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 16:31:45,913 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:45,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:45,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1340556462, now seen corresponding path program 1 times [2022-10-15 16:31:45,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:45,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456720617] [2022-10-15 16:31:45,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:45,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:46,012 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 16:31:46,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:46,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456720617] [2022-10-15 16:31:46,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456720617] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:46,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:46,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:46,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976577738] [2022-10-15 16:31:46,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:46,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:46,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:46,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:46,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:46,015 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 16:31:46,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:46,045 INFO L93 Difference]: Finished difference Result 1153 states and 1681 transitions. [2022-10-15 16:31:46,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:46,045 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 16:31:46,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:46,054 INFO L225 Difference]: With dead ends: 1153 [2022-10-15 16:31:46,054 INFO L226 Difference]: Without dead ends: 1153 [2022-10-15 16:31:46,054 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 16:31:46,055 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 16:31:46,056 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 16:31:46,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2022-10-15 16:31:46,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1153. [2022-10-15 16:31:46,078 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 16:31:46,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1681 transitions. [2022-10-15 16:31:46,083 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1681 transitions. Word has length 121 [2022-10-15 16:31:46,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:46,084 INFO L495 AbstractCegarLoop]: Abstraction has 1153 states and 1681 transitions. [2022-10-15 16:31:46,084 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 16:31:46,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1681 transitions. [2022-10-15 16:31:46,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-15 16:31:46,087 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:46,087 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 16:31:46,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 16:31:46,088 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:46,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:46,088 INFO L85 PathProgramCache]: Analyzing trace with hash 2057017556, now seen corresponding path program 1 times [2022-10-15 16:31:46,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:46,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108432532] [2022-10-15 16:31:46,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:46,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:46,195 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 16:31:46,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:46,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108432532] [2022-10-15 16:31:46,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108432532] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:46,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:46,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:46,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816407839] [2022-10-15 16:31:46,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:46,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:46,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:46,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:46,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:46,200 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 16:31:46,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:46,230 INFO L93 Difference]: Finished difference Result 1410 states and 2071 transitions. [2022-10-15 16:31:46,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:46,231 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 16:31:46,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:46,238 INFO L225 Difference]: With dead ends: 1410 [2022-10-15 16:31:46,238 INFO L226 Difference]: Without dead ends: 1410 [2022-10-15 16:31:46,239 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 16:31:46,242 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 16:31:46,242 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 16:31:46,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2022-10-15 16:31:46,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1410. [2022-10-15 16:31:46,300 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 16:31:46,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 2071 transitions. [2022-10-15 16:31:46,309 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 2071 transitions. Word has length 121 [2022-10-15 16:31:46,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:46,310 INFO L495 AbstractCegarLoop]: Abstraction has 1410 states and 2071 transitions. [2022-10-15 16:31:46,310 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 16:31:46,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 2071 transitions. [2022-10-15 16:31:46,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-10-15 16:31:46,321 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:46,321 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 16:31:46,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 16:31:46,322 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:46,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:46,323 INFO L85 PathProgramCache]: Analyzing trace with hash -860101462, now seen corresponding path program 1 times [2022-10-15 16:31:46,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:46,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973109083] [2022-10-15 16:31:46,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:46,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:46,511 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 16:31:46,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:46,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973109083] [2022-10-15 16:31:46,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973109083] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:46,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:46,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:46,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674049179] [2022-10-15 16:31:46,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:46,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:46,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:46,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:46,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:46,515 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 16:31:46,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:46,638 INFO L93 Difference]: Finished difference Result 1615 states and 2301 transitions. [2022-10-15 16:31:46,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:46,639 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 16:31:46,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:46,647 INFO L225 Difference]: With dead ends: 1615 [2022-10-15 16:31:46,648 INFO L226 Difference]: Without dead ends: 1565 [2022-10-15 16:31:46,648 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 16:31:46,649 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 16:31:46,651 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 16:31:46,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2022-10-15 16:31:46,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1565. [2022-10-15 16:31:46,683 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 16:31:46,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 2251 transitions. [2022-10-15 16:31:46,689 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 2251 transitions. Word has length 225 [2022-10-15 16:31:46,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:46,690 INFO L495 AbstractCegarLoop]: Abstraction has 1565 states and 2251 transitions. [2022-10-15 16:31:46,690 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 16:31:46,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 2251 transitions. [2022-10-15 16:31:46,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-10-15 16:31:46,696 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:46,697 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 16:31:46,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 16:31:46,697 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:46,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:46,698 INFO L85 PathProgramCache]: Analyzing trace with hash -482554043, now seen corresponding path program 1 times [2022-10-15 16:31:46,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:46,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503995213] [2022-10-15 16:31:46,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:46,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:46,885 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 16:31:46,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:46,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503995213] [2022-10-15 16:31:46,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503995213] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:31:46,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766591749] [2022-10-15 16:31:46,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:46,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:31:46,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:31:46,892 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 16:31:46,910 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 16:31:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:47,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 16:31:47,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:31:47,258 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 16:31:47,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:31:47,453 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 16:31:47,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766591749] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:31:47,454 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 16:31:47,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-10-15 16:31:47,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674077727] [2022-10-15 16:31:47,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 16:31:47,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 16:31:47,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:47,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 16:31:47,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 16:31:47,459 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 16:31:48,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:48,081 INFO L93 Difference]: Finished difference Result 4518 states and 6187 transitions. [2022-10-15 16:31:48,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 16:31:48,082 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 16:31:48,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:48,104 INFO L225 Difference]: With dead ends: 4518 [2022-10-15 16:31:48,104 INFO L226 Difference]: Without dead ends: 4518 [2022-10-15 16:31:48,105 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 16:31:48,106 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 350 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 16:31:48,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 953 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 16:31:48,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4518 states. [2022-10-15 16:31:48,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4518 to 3398. [2022-10-15 16:31:48,211 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 16:31:48,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3398 states to 3398 states and 4765 transitions. [2022-10-15 16:31:48,227 INFO L78 Accepts]: Start accepts. Automaton has 3398 states and 4765 transitions. Word has length 253 [2022-10-15 16:31:48,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:48,227 INFO L495 AbstractCegarLoop]: Abstraction has 3398 states and 4765 transitions. [2022-10-15 16:31:48,228 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 16:31:48,228 INFO L276 IsEmpty]: Start isEmpty. Operand 3398 states and 4765 transitions. [2022-10-15 16:31:48,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-10-15 16:31:48,239 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:48,240 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 16:31:48,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-15 16:31:48,454 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 16:31:48,455 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:48,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:48,456 INFO L85 PathProgramCache]: Analyzing trace with hash -193734653, now seen corresponding path program 1 times [2022-10-15 16:31:48,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:48,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811113863] [2022-10-15 16:31:48,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:48,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:48,591 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 16:31:48,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:48,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811113863] [2022-10-15 16:31:48,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811113863] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:48,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:48,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:48,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719014101] [2022-10-15 16:31:48,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:48,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:48,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:48,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:48,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:48,593 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 16:31:48,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:48,642 INFO L93 Difference]: Finished difference Result 6291 states and 8915 transitions. [2022-10-15 16:31:48,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:48,642 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 16:31:48,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:48,662 INFO L225 Difference]: With dead ends: 6291 [2022-10-15 16:31:48,662 INFO L226 Difference]: Without dead ends: 4220 [2022-10-15 16:31:48,662 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 16:31:48,663 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 16:31:48,664 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 16:31:48,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4220 states. [2022-10-15 16:31:48,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4220 to 3918. [2022-10-15 16:31:48,764 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 16:31:48,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3918 states to 3918 states and 5577 transitions. [2022-10-15 16:31:48,781 INFO L78 Accepts]: Start accepts. Automaton has 3918 states and 5577 transitions. Word has length 253 [2022-10-15 16:31:48,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:48,781 INFO L495 AbstractCegarLoop]: Abstraction has 3918 states and 5577 transitions. [2022-10-15 16:31:48,782 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 16:31:48,782 INFO L276 IsEmpty]: Start isEmpty. Operand 3918 states and 5577 transitions. [2022-10-15 16:31:48,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-10-15 16:31:48,794 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:48,795 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 16:31:48,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 16:31:48,795 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:48,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:48,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1163625151, now seen corresponding path program 1 times [2022-10-15 16:31:48,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:48,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077949889] [2022-10-15 16:31:48,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:48,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:48,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:48,924 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 16:31:48,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:48,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077949889] [2022-10-15 16:31:48,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077949889] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:48,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:48,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:48,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270171371] [2022-10-15 16:31:48,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:48,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:48,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:48,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:48,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:48,927 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 16:31:49,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:49,056 INFO L93 Difference]: Finished difference Result 4098 states and 5801 transitions. [2022-10-15 16:31:49,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:49,056 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 16:31:49,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:49,076 INFO L225 Difference]: With dead ends: 4098 [2022-10-15 16:31:49,077 INFO L226 Difference]: Without dead ends: 4098 [2022-10-15 16:31:49,077 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 16:31:49,079 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 16:31:49,079 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 16:31:49,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2022-10-15 16:31:49,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 4056. [2022-10-15 16:31:49,178 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 16:31:49,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4056 states to 4056 states and 5745 transitions. [2022-10-15 16:31:49,201 INFO L78 Accepts]: Start accepts. Automaton has 4056 states and 5745 transitions. Word has length 253 [2022-10-15 16:31:49,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:49,201 INFO L495 AbstractCegarLoop]: Abstraction has 4056 states and 5745 transitions. [2022-10-15 16:31:49,201 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 16:31:49,202 INFO L276 IsEmpty]: Start isEmpty. Operand 4056 states and 5745 transitions. [2022-10-15 16:31:49,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-10-15 16:31:49,212 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:49,212 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 16:31:49,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 16:31:49,213 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:49,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:49,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1335839441, now seen corresponding path program 1 times [2022-10-15 16:31:49,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:49,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094937346] [2022-10-15 16:31:49,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:49,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:49,337 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 16:31:49,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:49,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094937346] [2022-10-15 16:31:49,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094937346] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:49,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:49,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:49,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380849342] [2022-10-15 16:31:49,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:49,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:49,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:49,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:49,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:49,341 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 16:31:49,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:49,453 INFO L93 Difference]: Finished difference Result 4574 states and 6445 transitions. [2022-10-15 16:31:49,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:49,454 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 16:31:49,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:49,475 INFO L225 Difference]: With dead ends: 4574 [2022-10-15 16:31:49,476 INFO L226 Difference]: Without dead ends: 4574 [2022-10-15 16:31:49,477 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 16:31:49,477 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 16:31:49,478 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 16:31:49,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4574 states. [2022-10-15 16:31:49,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4574 to 4406. [2022-10-15 16:31:49,575 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 16:31:49,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4406 states to 4406 states and 6165 transitions. [2022-10-15 16:31:49,593 INFO L78 Accepts]: Start accepts. Automaton has 4406 states and 6165 transitions. Word has length 273 [2022-10-15 16:31:49,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:49,593 INFO L495 AbstractCegarLoop]: Abstraction has 4406 states and 6165 transitions. [2022-10-15 16:31:49,593 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 16:31:49,593 INFO L276 IsEmpty]: Start isEmpty. Operand 4406 states and 6165 transitions. [2022-10-15 16:31:49,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-10-15 16:31:49,603 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:49,604 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 16:31:49,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 16:31:49,604 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:49,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:49,605 INFO L85 PathProgramCache]: Analyzing trace with hash -257796221, now seen corresponding path program 1 times [2022-10-15 16:31:49,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:49,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441763811] [2022-10-15 16:31:49,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:49,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:49,781 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 16:31:49,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:49,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441763811] [2022-10-15 16:31:49,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441763811] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:49,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:49,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:49,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251807136] [2022-10-15 16:31:49,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:49,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:49,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:49,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:49,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:49,787 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 16:31:49,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:49,905 INFO L93 Difference]: Finished difference Result 4868 states and 6767 transitions. [2022-10-15 16:31:49,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:49,906 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 16:31:49,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:49,942 INFO L225 Difference]: With dead ends: 4868 [2022-10-15 16:31:49,942 INFO L226 Difference]: Without dead ends: 4868 [2022-10-15 16:31:49,944 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 16:31:49,945 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 16:31:49,945 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 16:31:49,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4868 states. [2022-10-15 16:31:50,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4868 to 4784. [2022-10-15 16:31:50,044 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 16:31:50,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4784 states to 4784 states and 6613 transitions. [2022-10-15 16:31:50,065 INFO L78 Accepts]: Start accepts. Automaton has 4784 states and 6613 transitions. Word has length 299 [2022-10-15 16:31:50,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:50,065 INFO L495 AbstractCegarLoop]: Abstraction has 4784 states and 6613 transitions. [2022-10-15 16:31:50,066 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 16:31:50,066 INFO L276 IsEmpty]: Start isEmpty. Operand 4784 states and 6613 transitions. [2022-10-15 16:31:50,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-10-15 16:31:50,077 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:50,078 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 16:31:50,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 16:31:50,078 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:50,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:50,079 INFO L85 PathProgramCache]: Analyzing trace with hash 212293102, now seen corresponding path program 1 times [2022-10-15 16:31:50,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:50,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5897883] [2022-10-15 16:31:50,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:50,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:50,246 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 16:31:50,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:50,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5897883] [2022-10-15 16:31:50,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5897883] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:50,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:50,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:50,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444810222] [2022-10-15 16:31:50,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:50,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:50,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:50,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:50,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:50,249 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 16:31:50,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:50,394 INFO L93 Difference]: Finished difference Result 5204 states and 7103 transitions. [2022-10-15 16:31:50,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:50,394 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 16:31:50,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:50,407 INFO L225 Difference]: With dead ends: 5204 [2022-10-15 16:31:50,407 INFO L226 Difference]: Without dead ends: 5204 [2022-10-15 16:31:50,407 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 16:31:50,409 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 16:31:50,409 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 16:31:50,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5204 states. [2022-10-15 16:31:50,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5204 to 4391. [2022-10-15 16:31:50,493 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 16:31:50,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 6069 transitions. [2022-10-15 16:31:50,509 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 6069 transitions. Word has length 322 [2022-10-15 16:31:50,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:50,510 INFO L495 AbstractCegarLoop]: Abstraction has 4391 states and 6069 transitions. [2022-10-15 16:31:50,510 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 16:31:50,510 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 6069 transitions. [2022-10-15 16:31:50,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-10-15 16:31:50,522 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:50,522 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 16:31:50,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 16:31:50,523 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:50,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:50,523 INFO L85 PathProgramCache]: Analyzing trace with hash -812160295, now seen corresponding path program 1 times [2022-10-15 16:31:50,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:50,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533496597] [2022-10-15 16:31:50,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:50,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:50,739 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 16:31:50,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:50,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533496597] [2022-10-15 16:31:50,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533496597] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:50,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:50,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:50,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569659881] [2022-10-15 16:31:50,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:50,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:50,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:50,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:50,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:50,742 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 16:31:50,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:50,811 INFO L93 Difference]: Finished difference Result 8760 states and 12091 transitions. [2022-10-15 16:31:50,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:50,812 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 16:31:50,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:50,840 INFO L225 Difference]: With dead ends: 8760 [2022-10-15 16:31:50,840 INFO L226 Difference]: Without dead ends: 8760 [2022-10-15 16:31:50,841 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 16:31:50,843 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 16:31:50,844 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 16:31:50,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8760 states. [2022-10-15 16:31:51,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8760 to 8575. [2022-10-15 16:31:51,090 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 16:31:51,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8575 states to 8575 states and 11876 transitions. [2022-10-15 16:31:51,122 INFO L78 Accepts]: Start accepts. Automaton has 8575 states and 11876 transitions. Word has length 354 [2022-10-15 16:31:51,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:51,123 INFO L495 AbstractCegarLoop]: Abstraction has 8575 states and 11876 transitions. [2022-10-15 16:31:51,123 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 16:31:51,123 INFO L276 IsEmpty]: Start isEmpty. Operand 8575 states and 11876 transitions. [2022-10-15 16:31:51,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-10-15 16:31:51,144 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:51,144 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 16:31:51,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 16:31:51,145 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:51,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:51,145 INFO L85 PathProgramCache]: Analyzing trace with hash 209922624, now seen corresponding path program 1 times [2022-10-15 16:31:51,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:51,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389135272] [2022-10-15 16:31:51,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:51,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:51,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:51,388 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 16:31:51,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:51,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389135272] [2022-10-15 16:31:51,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389135272] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:31:51,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434419287] [2022-10-15 16:31:51,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:51,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:31:51,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:31:51,391 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 16:31:51,415 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 16:31:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:51,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 16:31:51,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:31:51,991 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 16:31:51,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 16:31:51,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434419287] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:51,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 16:31:51,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-15 16:31:51,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881741434] [2022-10-15 16:31:51,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:51,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:51,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:51,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:51,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 16:31:51,994 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 16:31:52,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:52,048 INFO L93 Difference]: Finished difference Result 8530 states and 11868 transitions. [2022-10-15 16:31:52,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:52,049 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 16:31:52,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:52,076 INFO L225 Difference]: With dead ends: 8530 [2022-10-15 16:31:52,076 INFO L226 Difference]: Without dead ends: 8530 [2022-10-15 16:31:52,077 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 16:31:52,077 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 16:31:52,078 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 16:31:52,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8530 states. [2022-10-15 16:31:52,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8530 to 6140. [2022-10-15 16:31:52,233 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 16:31:52,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6140 states to 6140 states and 8548 transitions. [2022-10-15 16:31:52,249 INFO L78 Accepts]: Start accepts. Automaton has 6140 states and 8548 transitions. Word has length 355 [2022-10-15 16:31:52,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:52,250 INFO L495 AbstractCegarLoop]: Abstraction has 6140 states and 8548 transitions. [2022-10-15 16:31:52,250 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 16:31:52,250 INFO L276 IsEmpty]: Start isEmpty. Operand 6140 states and 8548 transitions. [2022-10-15 16:31:52,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2022-10-15 16:31:52,269 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:52,269 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 16:31:52,308 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 16:31:52,484 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 16:31:52,484 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:52,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:52,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1965226690, now seen corresponding path program 1 times [2022-10-15 16:31:52,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:52,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338361096] [2022-10-15 16:31:52,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:52,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:52,751 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 16:31:52,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:52,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338361096] [2022-10-15 16:31:52,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338361096] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:31:52,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134371826] [2022-10-15 16:31:52,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:52,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:31:52,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:31:52,754 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 16:31:52,773 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 16:31:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:52,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 16:31:52,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:31:53,025 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 16:31:53,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:31:53,130 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 16:31:53,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134371826] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:31:53,131 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 16:31:53,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-10-15 16:31:53,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612984521] [2022-10-15 16:31:53,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 16:31:53,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 16:31:53,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:53,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 16:31:53,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 16:31:53,134 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 16:31:53,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:53,560 INFO L93 Difference]: Finished difference Result 7716 states and 10411 transitions. [2022-10-15 16:31:53,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 16:31:53,561 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 16:31:53,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:53,576 INFO L225 Difference]: With dead ends: 7716 [2022-10-15 16:31:53,576 INFO L226 Difference]: Without dead ends: 7414 [2022-10-15 16:31:53,576 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 16:31:53,577 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, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 16:31:53,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 431 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 16:31:53,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7414 states. [2022-10-15 16:31:53,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7414 to 6032. [2022-10-15 16:31:53,713 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 16:31:53,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6032 states to 6032 states and 8244 transitions. [2022-10-15 16:31:53,726 INFO L78 Accepts]: Start accepts. Automaton has 6032 states and 8244 transitions. Word has length 417 [2022-10-15 16:31:53,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:53,727 INFO L495 AbstractCegarLoop]: Abstraction has 6032 states and 8244 transitions. [2022-10-15 16:31:53,727 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 16:31:53,727 INFO L276 IsEmpty]: Start isEmpty. Operand 6032 states and 8244 transitions. [2022-10-15 16:31:53,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2022-10-15 16:31:53,751 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:53,751 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 16:31:53,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 16:31:53,966 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 16:31:53,966 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:53,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:53,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1529804208, now seen corresponding path program 1 times [2022-10-15 16:31:53,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:53,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009895291] [2022-10-15 16:31:53,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:53,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:54,223 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 16:31:54,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:54,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009895291] [2022-10-15 16:31:54,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009895291] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:31:54,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:31:54,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:31:54,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37764346] [2022-10-15 16:31:54,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:31:54,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:31:54,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:54,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:31:54,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:31:54,226 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 16:31:54,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:54,369 INFO L93 Difference]: Finished difference Result 6462 states and 8861 transitions. [2022-10-15 16:31:54,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:31:54,370 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 16:31:54,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:54,384 INFO L225 Difference]: With dead ends: 6462 [2022-10-15 16:31:54,384 INFO L226 Difference]: Without dead ends: 6462 [2022-10-15 16:31:54,384 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 16:31:54,385 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 16:31:54,385 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 16:31:54,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6462 states. [2022-10-15 16:31:54,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6462 to 6266. [2022-10-15 16:31:54,479 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 16:31:54,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6266 states to 6266 states and 8559 transitions. [2022-10-15 16:31:54,493 INFO L78 Accepts]: Start accepts. Automaton has 6266 states and 8559 transitions. Word has length 509 [2022-10-15 16:31:54,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:54,575 INFO L495 AbstractCegarLoop]: Abstraction has 6266 states and 8559 transitions. [2022-10-15 16:31:54,575 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 16:31:54,575 INFO L276 IsEmpty]: Start isEmpty. Operand 6266 states and 8559 transitions. [2022-10-15 16:31:54,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2022-10-15 16:31:54,593 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:31:54,594 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 16:31:54,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-15 16:31:54,594 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 16:31:54,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:31:54,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1911316890, now seen corresponding path program 1 times [2022-10-15 16:31:54,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:31:54,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114571842] [2022-10-15 16:31:54,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:54,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:31:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:54,932 INFO L134 CoverageAnalysis]: Checked inductivity of 3204 backedges. 1986 proven. 16 refuted. 0 times theorem prover too weak. 1202 trivial. 0 not checked. [2022-10-15 16:31:54,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:31:54,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114571842] [2022-10-15 16:31:54,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114571842] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:31:54,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010262413] [2022-10-15 16:31:54,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:31:54,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:31:54,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:31:54,934 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 16:31:54,956 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 16:31:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:31:55,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 16:31:55,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:31:55,478 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 16:31:55,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:31:55,965 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 16:31:55,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010262413] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:31:55,965 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 16:31:55,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 10 [2022-10-15 16:31:55,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999218107] [2022-10-15 16:31:55,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 16:31:55,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-15 16:31:55,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:31:55,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-15 16:31:55,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-10-15 16:31:55,968 INFO L87 Difference]: Start difference. First operand 6266 states and 8559 transitions. Second operand has 10 states, 10 states have (on average 44.0) internal successors, (440), 10 states have internal predecessors, (440), 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 16:31:57,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:31:57,726 INFO L93 Difference]: Finished difference Result 8642 states and 11133 transitions. [2022-10-15 16:31:57,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-15 16:31:57,727 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 44.0) internal successors, (440), 10 states have internal predecessors, (440), 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 16:31:57,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:31:57,727 INFO L225 Difference]: With dead ends: 8642 [2022-10-15 16:31:57,728 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 16:31:57,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1062 GetRequests, 1037 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=196, Invalid=506, Unknown=0, NotChecked=0, Total=702 [2022-10-15 16:31:57,729 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 862 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 2234 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 1590 SdHoareTripleChecker+Invalid, 2501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 2234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-15 16:31:57,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 1590 Invalid, 2501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 2234 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-15 16:31:57,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 16:31:57,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 16:31:57,731 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 16:31:57,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 16:31:57,731 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 513 [2022-10-15 16:31:57,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:31:57,731 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 16:31:57,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 44.0) internal successors, (440), 10 states have internal predecessors, (440), 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 16:31:57,732 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 16:31:57,732 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 16:31:57,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-10-15 16:31:57,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-10-15 16:31:57,779 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 16:31:57,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:31:57,956 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:31:57,959 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 16:31:57,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:31:57 BoogieIcfgContainer [2022-10-15 16:31:57,962 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 16:31:57,963 INFO L158 Benchmark]: Toolchain (without parser) took 16331.89ms. Allocated memory was 151.0MB in the beginning and 373.3MB in the end (delta: 222.3MB). Free memory was 125.1MB in the beginning and 157.3MB in the end (delta: -32.2MB). Peak memory consumption was 191.7MB. Max. memory is 8.0GB. [2022-10-15 16:31:57,963 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 151.0MB. Free memory is still 120.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 16:31:57,963 INFO L158 Benchmark]: CACSL2BoogieTranslator took 564.31ms. Allocated memory is still 151.0MB. Free memory was 124.9MB in the beginning and 109.9MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-10-15 16:31:57,964 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.76ms. Allocated memory is still 151.0MB. Free memory was 109.7MB in the beginning and 106.9MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-10-15 16:31:57,964 INFO L158 Benchmark]: Boogie Preprocessor took 42.89ms. Allocated memory is still 151.0MB. Free memory was 106.9MB in the beginning and 104.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 16:31:57,964 INFO L158 Benchmark]: RCFGBuilder took 891.63ms. Allocated memory is still 151.0MB. Free memory was 104.6MB in the beginning and 103.4MB in the end (delta: 1.1MB). Peak memory consumption was 13.8MB. Max. memory is 8.0GB. [2022-10-15 16:31:57,965 INFO L158 Benchmark]: TraceAbstraction took 14751.24ms. Allocated memory was 151.0MB in the beginning and 373.3MB in the end (delta: 222.3MB). Free memory was 102.9MB in the beginning and 157.3MB in the end (delta: -54.4MB). Peak memory consumption was 168.4MB. Max. memory is 8.0GB. [2022-10-15 16:31:57,966 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 is still 120.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 564.31ms. Allocated memory is still 151.0MB. Free memory was 124.9MB in the beginning and 109.9MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 66.76ms. Allocated memory is still 151.0MB. Free memory was 109.7MB in the beginning and 106.9MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.89ms. Allocated memory is still 151.0MB. Free memory was 106.9MB in the beginning and 104.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 891.63ms. Allocated memory is still 151.0MB. Free memory was 104.6MB in the beginning and 103.4MB in the end (delta: 1.1MB). Peak memory consumption was 13.8MB. Max. memory is 8.0GB. * TraceAbstraction took 14751.24ms. Allocated memory was 151.0MB in the beginning and 373.3MB in the end (delta: 222.3MB). Free memory was 102.9MB in the beginning and 157.3MB in the end (delta: -54.4MB). Peak memory consumption was 168.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 679]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 687]: 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: 14.7s, OverallIterations: 21, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3214 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3214 mSDsluCounter, 8725 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3769 mSDsCounter, 691 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4534 IncrementalHoareTripleChecker+Invalid, 5225 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 691 mSolverCounterUnsat, 4956 mSDtfsCounter, 4534 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2824 GetRequests, 2766 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8575occurred in iteration=17, InterpolantAutomatonStates: 95, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 21 MinimizatonAttempts, 6740 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 6218 NumberOfCodeBlocks, 6218 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 7373 ConstructedInterpolants, 0 QuantifiedInterpolants, 13382 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2567 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 28 InterpolantComputations, 18 PerfectInterpolantSequences, 28486/29037 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 16:31:58,017 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...