/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/seq-mthreaded/pals_lcr.8.ufo.BOUNDED-16.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 02:48:33,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 02:48:33,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 02:48:33,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 02:48:33,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 02:48:33,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 02:48:33,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 02:48:33,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 02:48:33,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 02:48:33,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 02:48:33,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 02:48:33,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 02:48:33,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 02:48:33,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 02:48:33,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 02:48:33,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 02:48:33,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 02:48:33,156 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 [2022-10-16 02:48:33,187 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 02:48:33,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 02:48:33,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 02:48:33,188 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 02:48:33,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 02:48:33,190 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 02:48:33,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 02:48:33,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 02:48:33,192 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 02:48:33,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 02:48:33,192 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 02:48:33,192 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 02:48:33,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 02:48:33,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 02:48:33,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 02:48:33,193 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 02:48:33,194 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 02:48:33,194 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 02:48:33,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 02:48:33,194 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 02:48:33,195 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 02:48:33,195 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 02:48:33,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 02:48:33,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 02:48:33,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 02:48:33,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:48:33,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 02:48:33,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 02:48:33,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 02:48:33,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 02:48:33,198 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 02:48:33,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 02:48:33,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 02:48:33,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 02:48:33,615 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 02:48:33,616 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 02:48:33,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.ufo.BOUNDED-16.pals.c [2022-10-16 02:48:33,706 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d15b3b4fc/59bd363ab6664827922c278c9d47346d/FLAG581f89eba [2022-10-16 02:48:34,490 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 02:48:34,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.8.ufo.BOUNDED-16.pals.c [2022-10-16 02:48:34,516 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d15b3b4fc/59bd363ab6664827922c278c9d47346d/FLAG581f89eba [2022-10-16 02:48:34,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d15b3b4fc/59bd363ab6664827922c278c9d47346d [2022-10-16 02:48:34,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 02:48:34,792 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 02:48:34,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 02:48:34,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 02:48:34,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 02:48:34,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:48:34" (1/1) ... [2022-10-16 02:48:34,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194d6760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:48:34, skipping insertion in model container [2022-10-16 02:48:34,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:48:34" (1/1) ... [2022-10-16 02:48:34,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 02:48:34,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 02:48:35,315 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/seq-mthreaded/pals_lcr.8.ufo.BOUNDED-16.pals.c[26453,26466] [2022-10-16 02:48:35,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:48:35,332 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 02:48:35,412 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/seq-mthreaded/pals_lcr.8.ufo.BOUNDED-16.pals.c[26453,26466] [2022-10-16 02:48:35,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:48:35,444 INFO L208 MainTranslator]: Completed translation [2022-10-16 02:48:35,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:48:35 WrapperNode [2022-10-16 02:48:35,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 02:48:35,446 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 02:48:35,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 02:48:35,447 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 02:48:35,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:48:35" (1/1) ... [2022-10-16 02:48:35,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:48:35" (1/1) ... [2022-10-16 02:48:35,523 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 524 [2022-10-16 02:48:35,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 02:48:35,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 02:48:35,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 02:48:35,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 02:48:35,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:48:35" (1/1) ... [2022-10-16 02:48:35,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:48:35" (1/1) ... [2022-10-16 02:48:35,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:48:35" (1/1) ... [2022-10-16 02:48:35,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:48:35" (1/1) ... [2022-10-16 02:48:35,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:48:35" (1/1) ... [2022-10-16 02:48:35,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:48:35" (1/1) ... [2022-10-16 02:48:35,605 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:48:35" (1/1) ... [2022-10-16 02:48:35,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:48:35" (1/1) ... [2022-10-16 02:48:35,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 02:48:35,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 02:48:35,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 02:48:35,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 02:48:35,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:48:35" (1/1) ... [2022-10-16 02:48:35,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:48:35,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:48:35,672 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) [2022-10-16 02:48:35,696 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 [2022-10-16 02:48:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 02:48:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 02:48:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 02:48:35,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 02:48:35,968 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 02:48:35,971 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 02:48:36,841 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 02:48:36,853 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 02:48:36,853 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 02:48:36,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:48:36 BoogieIcfgContainer [2022-10-16 02:48:36,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 02:48:36,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 02:48:36,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 02:48:36,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 02:48:36,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:48:34" (1/3) ... [2022-10-16 02:48:36,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7afff579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:48:36, skipping insertion in model container [2022-10-16 02:48:36,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:48:35" (2/3) ... [2022-10-16 02:48:36,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7afff579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:48:36, skipping insertion in model container [2022-10-16 02:48:36,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:48:36" (3/3) ... [2022-10-16 02:48:36,866 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.BOUNDED-16.pals.c [2022-10-16 02:48:36,889 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 02:48:36,889 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 02:48:36,948 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 02:48:36,958 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;@441d16d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 02:48:36,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 02:48:36,964 INFO L276 IsEmpty]: Start isEmpty. Operand has 148 states, 145 states have (on average 1.7724137931034483) internal successors, (257), 147 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) [2022-10-16 02:48:36,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 02:48:36,973 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:48:36,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:48:36,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:48:36,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:48:36,981 INFO L85 PathProgramCache]: Analyzing trace with hash 2004247217, now seen corresponding path program 1 times [2022-10-16 02:48:36,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:48:36,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786322977] [2022-10-16 02:48:36,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:36,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:48:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:37,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:37,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:48:37,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786322977] [2022-10-16 02:48:37,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786322977] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:48:37,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:48:37,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 02:48:37,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422131707] [2022-10-16 02:48:37,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:48:37,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 02:48:37,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:48:37,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 02:48:37,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 02:48:37,444 INFO L87 Difference]: Start difference. First operand has 148 states, 145 states have (on average 1.7724137931034483) internal successors, (257), 147 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) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-10-16 02:48:37,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:48:37,478 INFO L93 Difference]: Finished difference Result 148 states and 254 transitions. [2022-10-16 02:48:37,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 02:48:37,484 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-10-16 02:48:37,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:48:37,500 INFO L225 Difference]: With dead ends: 148 [2022-10-16 02:48:37,500 INFO L226 Difference]: Without dead ends: 146 [2022-10-16 02:48:37,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 02:48:37,508 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:48:37,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:48:37,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-10-16 02:48:37,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-10-16 02:48:37,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 144 states have (on average 1.75) internal successors, (252), 145 states have internal predecessors, (252), 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) [2022-10-16 02:48:37,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 252 transitions. [2022-10-16 02:48:37,566 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 252 transitions. Word has length 10 [2022-10-16 02:48:37,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:48:37,567 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 252 transitions. [2022-10-16 02:48:37,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-10-16 02:48:37,568 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 252 transitions. [2022-10-16 02:48:37,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 02:48:37,569 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:48:37,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:48:37,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 02:48:37,570 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:48:37,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:48:37,571 INFO L85 PathProgramCache]: Analyzing trace with hash 2006094259, now seen corresponding path program 1 times [2022-10-16 02:48:37,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:48:37,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318963191] [2022-10-16 02:48:37,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:37,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:48:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:37,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:37,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:48:37,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318963191] [2022-10-16 02:48:37,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318963191] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:48:37,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:48:37,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:48:37,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293382263] [2022-10-16 02:48:37,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:48:37,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:48:37,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:48:37,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:48:37,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:48:37,924 INFO L87 Difference]: Start difference. First operand 146 states and 252 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-10-16 02:48:38,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:48:38,044 INFO L93 Difference]: Finished difference Result 149 states and 254 transitions. [2022-10-16 02:48:38,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:48:38,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2022-10-16 02:48:38,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:48:38,046 INFO L225 Difference]: With dead ends: 149 [2022-10-16 02:48:38,047 INFO L226 Difference]: Without dead ends: 146 [2022-10-16 02:48:38,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:48:38,049 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 3 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:48:38,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 936 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:48:38,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-10-16 02:48:38,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-10-16 02:48:38,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 144 states have (on average 1.3263888888888888) internal successors, (191), 145 states have internal predecessors, (191), 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) [2022-10-16 02:48:38,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 191 transitions. [2022-10-16 02:48:38,106 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 191 transitions. Word has length 10 [2022-10-16 02:48:38,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:48:38,107 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 191 transitions. [2022-10-16 02:48:38,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-10-16 02:48:38,108 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 191 transitions. [2022-10-16 02:48:38,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-10-16 02:48:38,110 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:48:38,110 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:48:38,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 02:48:38,111 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:48:38,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:48:38,113 INFO L85 PathProgramCache]: Analyzing trace with hash -151637565, now seen corresponding path program 1 times [2022-10-16 02:48:38,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:48:38,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317896240] [2022-10-16 02:48:38,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:38,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:48:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:38,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:38,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:48:38,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317896240] [2022-10-16 02:48:38,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317896240] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:48:38,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:48:38,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:48:38,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568403093] [2022-10-16 02:48:38,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:48:38,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:48:38,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:48:38,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:48:38,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:48:38,301 INFO L87 Difference]: Start difference. First operand 146 states and 191 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2022-10-16 02:48:38,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:48:38,322 INFO L93 Difference]: Finished difference Result 222 states and 312 transitions. [2022-10-16 02:48:38,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:48:38,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2022-10-16 02:48:38,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:48:38,326 INFO L225 Difference]: With dead ends: 222 [2022-10-16 02:48:38,326 INFO L226 Difference]: Without dead ends: 222 [2022-10-16 02:48:38,327 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 [2022-10-16 02:48:38,329 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 120 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:48:38,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 374 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:48:38,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-10-16 02:48:38,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 147. [2022-10-16 02:48:38,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 145 states have (on average 1.3241379310344827) internal successors, (192), 146 states have internal predecessors, (192), 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) [2022-10-16 02:48:38,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 192 transitions. [2022-10-16 02:48:38,344 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 192 transitions. Word has length 70 [2022-10-16 02:48:38,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:48:38,345 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 192 transitions. [2022-10-16 02:48:38,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2022-10-16 02:48:38,346 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 192 transitions. [2022-10-16 02:48:38,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-16 02:48:38,350 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:48:38,350 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:48:38,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 02:48:38,351 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:48:38,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:48:38,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1176555156, now seen corresponding path program 1 times [2022-10-16 02:48:38,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:48:38,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369355361] [2022-10-16 02:48:38,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:38,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:48:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:38,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:38,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:48:38,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369355361] [2022-10-16 02:48:38,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369355361] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:48:38,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:48:38,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:48:38,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420273532] [2022-10-16 02:48:38,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:48:38,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:48:38,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:48:38,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:48:38,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:48:38,663 INFO L87 Difference]: Start difference. First operand 147 states and 192 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2022-10-16 02:48:38,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:48:38,688 INFO L93 Difference]: Finished difference Result 220 states and 305 transitions. [2022-10-16 02:48:38,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:48:38,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 105 [2022-10-16 02:48:38,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:48:38,692 INFO L225 Difference]: With dead ends: 220 [2022-10-16 02:48:38,692 INFO L226 Difference]: Without dead ends: 220 [2022-10-16 02:48:38,693 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 [2022-10-16 02:48:38,694 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 114 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:48:38,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 423 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:48:38,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-10-16 02:48:38,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 215. [2022-10-16 02:48:38,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 213 states have (on average 1.4178403755868545) internal successors, (302), 214 states have internal predecessors, (302), 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) [2022-10-16 02:48:38,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 302 transitions. [2022-10-16 02:48:38,710 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 302 transitions. Word has length 105 [2022-10-16 02:48:38,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:48:38,711 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 302 transitions. [2022-10-16 02:48:38,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2022-10-16 02:48:38,711 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 302 transitions. [2022-10-16 02:48:38,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-16 02:48:38,715 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:48:38,715 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:48:38,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 02:48:38,716 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:48:38,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:48:38,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1701405430, now seen corresponding path program 1 times [2022-10-16 02:48:38,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:48:38,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713110415] [2022-10-16 02:48:38,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:38,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:48:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:38,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:38,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:48:38,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713110415] [2022-10-16 02:48:38,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713110415] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:48:38,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:48:38,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:48:38,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599031443] [2022-10-16 02:48:38,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:48:38,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:48:38,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:48:38,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:48:38,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:48:38,956 INFO L87 Difference]: Start difference. First operand 215 states and 302 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2022-10-16 02:48:38,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:48:38,977 INFO L93 Difference]: Finished difference Result 350 states and 514 transitions. [2022-10-16 02:48:38,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:48:38,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 105 [2022-10-16 02:48:38,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:48:38,981 INFO L225 Difference]: With dead ends: 350 [2022-10-16 02:48:38,981 INFO L226 Difference]: Without dead ends: 350 [2022-10-16 02:48:38,982 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 [2022-10-16 02:48:38,984 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 110 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:48:38,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 422 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:48:38,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-10-16 02:48:39,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 345. [2022-10-16 02:48:39,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 343 states have (on average 1.489795918367347) internal successors, (511), 344 states have internal predecessors, (511), 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) [2022-10-16 02:48:39,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 511 transitions. [2022-10-16 02:48:39,016 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 511 transitions. Word has length 105 [2022-10-16 02:48:39,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:48:39,016 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 511 transitions. [2022-10-16 02:48:39,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2022-10-16 02:48:39,019 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 511 transitions. [2022-10-16 02:48:39,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-16 02:48:39,028 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:48:39,029 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:48:39,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 02:48:39,029 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:48:39,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:48:39,030 INFO L85 PathProgramCache]: Analyzing trace with hash -179136962, now seen corresponding path program 1 times [2022-10-16 02:48:39,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:48:39,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200074206] [2022-10-16 02:48:39,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:39,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:48:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:39,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:39,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:48:39,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200074206] [2022-10-16 02:48:39,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200074206] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:48:39,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:48:39,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:48:39,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65451660] [2022-10-16 02:48:39,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:48:39,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:48:39,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:48:39,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:48:39,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:48:39,243 INFO L87 Difference]: Start difference. First operand 345 states and 511 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2022-10-16 02:48:39,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:48:39,265 INFO L93 Difference]: Finished difference Result 598 states and 910 transitions. [2022-10-16 02:48:39,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:48:39,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 105 [2022-10-16 02:48:39,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:48:39,271 INFO L225 Difference]: With dead ends: 598 [2022-10-16 02:48:39,271 INFO L226 Difference]: Without dead ends: 598 [2022-10-16 02:48:39,272 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 [2022-10-16 02:48:39,279 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 106 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:48:39,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 421 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:48:39,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-10-16 02:48:39,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 593. [2022-10-16 02:48:39,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 591 states have (on average 1.5346869712351945) internal successors, (907), 592 states have internal predecessors, (907), 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) [2022-10-16 02:48:39,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 907 transitions. [2022-10-16 02:48:39,318 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 907 transitions. Word has length 105 [2022-10-16 02:48:39,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:48:39,319 INFO L495 AbstractCegarLoop]: Abstraction has 593 states and 907 transitions. [2022-10-16 02:48:39,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2022-10-16 02:48:39,320 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 907 transitions. [2022-10-16 02:48:39,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-16 02:48:39,326 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:48:39,327 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:48:39,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 02:48:39,330 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:48:39,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:48:39,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1430042254, now seen corresponding path program 1 times [2022-10-16 02:48:39,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:48:39,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216595429] [2022-10-16 02:48:39,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:39,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:48:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:39,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:39,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:48:39,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216595429] [2022-10-16 02:48:39,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216595429] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:48:39,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:48:39,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:48:39,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081177951] [2022-10-16 02:48:39,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:48:39,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:48:39,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:48:39,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:48:39,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:48:39,512 INFO L87 Difference]: Start difference. First operand 593 states and 907 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2022-10-16 02:48:39,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:48:39,544 INFO L93 Difference]: Finished difference Result 1070 states and 1658 transitions. [2022-10-16 02:48:39,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:48:39,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 105 [2022-10-16 02:48:39,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:48:39,551 INFO L225 Difference]: With dead ends: 1070 [2022-10-16 02:48:39,552 INFO L226 Difference]: Without dead ends: 1070 [2022-10-16 02:48:39,552 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 [2022-10-16 02:48:39,557 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 102 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:48:39,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 420 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:48:39,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2022-10-16 02:48:39,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1065. [2022-10-16 02:48:39,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 1063 states have (on average 1.5569143932267169) internal successors, (1655), 1064 states have internal predecessors, (1655), 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) [2022-10-16 02:48:39,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1655 transitions. [2022-10-16 02:48:39,592 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1655 transitions. Word has length 105 [2022-10-16 02:48:39,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:48:39,592 INFO L495 AbstractCegarLoop]: Abstraction has 1065 states and 1655 transitions. [2022-10-16 02:48:39,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2022-10-16 02:48:39,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1655 transitions. [2022-10-16 02:48:39,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-16 02:48:39,594 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:48:39,595 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:48:39,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 02:48:39,595 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:48:39,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:48:39,596 INFO L85 PathProgramCache]: Analyzing trace with hash 2119342312, now seen corresponding path program 1 times [2022-10-16 02:48:39,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:48:39,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813933838] [2022-10-16 02:48:39,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:39,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:48:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:39,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:39,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:48:39,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813933838] [2022-10-16 02:48:39,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813933838] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:48:39,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:48:39,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:48:39,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331646008] [2022-10-16 02:48:39,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:48:39,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:48:39,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:48:39,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:48:39,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:48:39,765 INFO L87 Difference]: Start difference. First operand 1065 states and 1655 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2022-10-16 02:48:39,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:48:39,794 INFO L93 Difference]: Finished difference Result 1966 states and 3066 transitions. [2022-10-16 02:48:39,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:48:39,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 105 [2022-10-16 02:48:39,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:48:39,806 INFO L225 Difference]: With dead ends: 1966 [2022-10-16 02:48:39,807 INFO L226 Difference]: Without dead ends: 1966 [2022-10-16 02:48:39,807 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 [2022-10-16 02:48:39,809 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 98 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:48:39,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 419 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:48:39,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2022-10-16 02:48:39,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1961. [2022-10-16 02:48:39,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1961 states, 1959 states have (on average 1.563552833078101) internal successors, (3063), 1960 states have internal predecessors, (3063), 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) [2022-10-16 02:48:39,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 3063 transitions. [2022-10-16 02:48:39,857 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 3063 transitions. Word has length 105 [2022-10-16 02:48:39,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:48:39,858 INFO L495 AbstractCegarLoop]: Abstraction has 1961 states and 3063 transitions. [2022-10-16 02:48:39,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2022-10-16 02:48:39,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 3063 transitions. [2022-10-16 02:48:39,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-16 02:48:39,862 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:48:39,863 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:48:39,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 02:48:39,864 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:48:39,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:48:39,870 INFO L85 PathProgramCache]: Analyzing trace with hash 179311454, now seen corresponding path program 1 times [2022-10-16 02:48:39,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:48:39,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903032069] [2022-10-16 02:48:39,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:39,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:48:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:40,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:40,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:48:40,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903032069] [2022-10-16 02:48:40,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903032069] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:48:40,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:48:40,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:48:40,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316598729] [2022-10-16 02:48:40,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:48:40,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:48:40,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:48:40,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:48:40,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:48:40,039 INFO L87 Difference]: Start difference. First operand 1961 states and 3063 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2022-10-16 02:48:40,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:48:40,085 INFO L93 Difference]: Finished difference Result 3662 states and 5706 transitions. [2022-10-16 02:48:40,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:48:40,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 105 [2022-10-16 02:48:40,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:48:40,106 INFO L225 Difference]: With dead ends: 3662 [2022-10-16 02:48:40,106 INFO L226 Difference]: Without dead ends: 3662 [2022-10-16 02:48:40,106 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 [2022-10-16 02:48:40,110 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 94 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:48:40,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 418 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:48:40,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3662 states. [2022-10-16 02:48:40,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3662 to 3657. [2022-10-16 02:48:40,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3657 states, 3655 states have (on average 1.560328317373461) internal successors, (5703), 3656 states have internal predecessors, (5703), 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) [2022-10-16 02:48:40,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3657 states to 3657 states and 5703 transitions. [2022-10-16 02:48:40,233 INFO L78 Accepts]: Start accepts. Automaton has 3657 states and 5703 transitions. Word has length 105 [2022-10-16 02:48:40,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:48:40,233 INFO L495 AbstractCegarLoop]: Abstraction has 3657 states and 5703 transitions. [2022-10-16 02:48:40,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2022-10-16 02:48:40,234 INFO L276 IsEmpty]: Start isEmpty. Operand 3657 states and 5703 transitions. [2022-10-16 02:48:40,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-16 02:48:40,235 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:48:40,236 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:48:40,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 02:48:40,239 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:48:40,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:48:40,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1414973228, now seen corresponding path program 1 times [2022-10-16 02:48:40,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:48:40,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569024296] [2022-10-16 02:48:40,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:40,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:48:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:40,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:40,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:48:40,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569024296] [2022-10-16 02:48:40,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569024296] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:48:40,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:48:40,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-16 02:48:40,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468927761] [2022-10-16 02:48:40,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:48:40,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 02:48:40,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:48:40,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 02:48:40,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:48:40,709 INFO L87 Difference]: Start difference. First operand 3657 states and 5703 transitions. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2022-10-16 02:48:41,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:48:41,646 INFO L93 Difference]: Finished difference Result 57492 states and 89204 transitions. [2022-10-16 02:48:41,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 02:48:41,646 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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 105 [2022-10-16 02:48:41,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:48:41,848 INFO L225 Difference]: With dead ends: 57492 [2022-10-16 02:48:41,849 INFO L226 Difference]: Without dead ends: 57492 [2022-10-16 02:48:41,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-10-16 02:48:41,850 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 4811 mSDsluCounter, 2033 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4811 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:48:41,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4811 Valid, 2218 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:48:41,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57492 states. [2022-10-16 02:48:42,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57492 to 7241. [2022-10-16 02:48:42,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7241 states, 7239 states have (on average 1.5481420085647188) internal successors, (11207), 7240 states have internal predecessors, (11207), 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) [2022-10-16 02:48:42,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7241 states to 7241 states and 11207 transitions. [2022-10-16 02:48:42,627 INFO L78 Accepts]: Start accepts. Automaton has 7241 states and 11207 transitions. Word has length 105 [2022-10-16 02:48:42,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:48:42,628 INFO L495 AbstractCegarLoop]: Abstraction has 7241 states and 11207 transitions. [2022-10-16 02:48:42,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 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) [2022-10-16 02:48:42,629 INFO L276 IsEmpty]: Start isEmpty. Operand 7241 states and 11207 transitions. [2022-10-16 02:48:42,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-16 02:48:42,630 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:48:42,630 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:48:42,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 02:48:42,631 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:48:42,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:48:42,633 INFO L85 PathProgramCache]: Analyzing trace with hash 299673892, now seen corresponding path program 1 times [2022-10-16 02:48:42,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:48:42,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608737017] [2022-10-16 02:48:42,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:42,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:48:42,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:42,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:42,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:48:42,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608737017] [2022-10-16 02:48:42,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608737017] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:48:42,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:48:42,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:48:42,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842210651] [2022-10-16 02:48:42,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:48:42,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:48:42,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:48:42,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:48:42,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:48:42,812 INFO L87 Difference]: Start difference. First operand 7241 states and 11207 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2022-10-16 02:48:42,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:48:42,869 INFO L93 Difference]: Finished difference Result 10671 states and 16427 transitions. [2022-10-16 02:48:42,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:48:42,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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 107 [2022-10-16 02:48:42,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:48:42,896 INFO L225 Difference]: With dead ends: 10671 [2022-10-16 02:48:42,897 INFO L226 Difference]: Without dead ends: 10671 [2022-10-16 02:48:42,897 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 [2022-10-16 02:48:42,898 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 78 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:48:42,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 347 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:48:42,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10671 states. [2022-10-16 02:48:43,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10671 to 10666. [2022-10-16 02:48:43,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10666 states, 10664 states have (on average 1.5401350337584396) internal successors, (16424), 10665 states have internal predecessors, (16424), 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) [2022-10-16 02:48:43,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10666 states to 10666 states and 16424 transitions. [2022-10-16 02:48:43,275 INFO L78 Accepts]: Start accepts. Automaton has 10666 states and 16424 transitions. Word has length 107 [2022-10-16 02:48:43,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:48:43,276 INFO L495 AbstractCegarLoop]: Abstraction has 10666 states and 16424 transitions. [2022-10-16 02:48:43,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2022-10-16 02:48:43,277 INFO L276 IsEmpty]: Start isEmpty. Operand 10666 states and 16424 transitions. [2022-10-16 02:48:43,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-16 02:48:43,365 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:48:43,365 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:48:43,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 02:48:43,366 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:48:43,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:48:43,366 INFO L85 PathProgramCache]: Analyzing trace with hash 366167404, now seen corresponding path program 1 times [2022-10-16 02:48:43,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:48:43,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771566510] [2022-10-16 02:48:43,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:43,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:48:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:44,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:44,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:48:44,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771566510] [2022-10-16 02:48:44,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771566510] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:48:44,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:48:44,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-16 02:48:44,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534894360] [2022-10-16 02:48:44,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:48:44,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 02:48:44,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:48:44,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 02:48:44,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:48:44,205 INFO L87 Difference]: Start difference. First operand 10666 states and 16424 transitions. Second operand has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 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) [2022-10-16 02:48:44,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:48:44,823 INFO L93 Difference]: Finished difference Result 10671 states and 16331 transitions. [2022-10-16 02:48:44,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:48:44,824 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 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 107 [2022-10-16 02:48:44,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:48:44,853 INFO L225 Difference]: With dead ends: 10671 [2022-10-16 02:48:44,853 INFO L226 Difference]: Without dead ends: 10671 [2022-10-16 02:48:44,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2022-10-16 02:48:44,855 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 808 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:48:44,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 1091 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:48:44,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10671 states. [2022-10-16 02:48:45,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10671 to 10666. [2022-10-16 02:48:45,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10666 states, 10664 states have (on average 1.531132783195799) internal successors, (16328), 10665 states have internal predecessors, (16328), 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) [2022-10-16 02:48:45,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10666 states to 10666 states and 16328 transitions. [2022-10-16 02:48:45,186 INFO L78 Accepts]: Start accepts. Automaton has 10666 states and 16328 transitions. Word has length 107 [2022-10-16 02:48:45,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:48:45,186 INFO L495 AbstractCegarLoop]: Abstraction has 10666 states and 16328 transitions. [2022-10-16 02:48:45,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 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) [2022-10-16 02:48:45,187 INFO L276 IsEmpty]: Start isEmpty. Operand 10666 states and 16328 transitions. [2022-10-16 02:48:45,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-16 02:48:45,188 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:48:45,188 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:48:45,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 02:48:45,188 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:48:45,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:48:45,189 INFO L85 PathProgramCache]: Analyzing trace with hash -2139885816, now seen corresponding path program 1 times [2022-10-16 02:48:45,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:48:45,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207379140] [2022-10-16 02:48:45,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:45,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:48:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:45,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:45,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:48:45,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207379140] [2022-10-16 02:48:45,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207379140] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:48:45,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:48:45,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:48:45,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531538594] [2022-10-16 02:48:45,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:48:45,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:48:45,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:48:45,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:48:45,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:48:45,328 INFO L87 Difference]: Start difference. First operand 10666 states and 16328 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2022-10-16 02:48:45,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:48:45,422 INFO L93 Difference]: Finished difference Result 20111 states and 30475 transitions. [2022-10-16 02:48:45,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:48:45,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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 107 [2022-10-16 02:48:45,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:48:45,473 INFO L225 Difference]: With dead ends: 20111 [2022-10-16 02:48:45,474 INFO L226 Difference]: Without dead ends: 20111 [2022-10-16 02:48:45,474 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 [2022-10-16 02:48:45,475 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 86 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:48:45,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 408 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:48:45,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20111 states. [2022-10-16 02:48:45,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20111 to 20106. [2022-10-16 02:48:45,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20106 states, 20104 states have (on average 1.5157182650218861) internal successors, (30472), 20105 states have internal predecessors, (30472), 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) [2022-10-16 02:48:46,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20106 states to 20106 states and 30472 transitions. [2022-10-16 02:48:46,028 INFO L78 Accepts]: Start accepts. Automaton has 20106 states and 30472 transitions. Word has length 107 [2022-10-16 02:48:46,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:48:46,029 INFO L495 AbstractCegarLoop]: Abstraction has 20106 states and 30472 transitions. [2022-10-16 02:48:46,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2022-10-16 02:48:46,029 INFO L276 IsEmpty]: Start isEmpty. Operand 20106 states and 30472 transitions. [2022-10-16 02:48:46,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-16 02:48:46,031 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:48:46,031 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:48:46,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 02:48:46,031 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:48:46,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:48:46,032 INFO L85 PathProgramCache]: Analyzing trace with hash -892378200, now seen corresponding path program 1 times [2022-10-16 02:48:46,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:48:46,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094004478] [2022-10-16 02:48:46,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:46,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:48:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:46,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:46,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:48:46,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094004478] [2022-10-16 02:48:46,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094004478] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:48:46,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:48:46,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:48:46,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095654283] [2022-10-16 02:48:46,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:48:46,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:48:46,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:48:46,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:48:46,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:48:46,276 INFO L87 Difference]: Start difference. First operand 20106 states and 30472 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2022-10-16 02:48:46,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:48:46,431 INFO L93 Difference]: Finished difference Result 37839 states and 56651 transitions. [2022-10-16 02:48:46,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:48:46,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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 107 [2022-10-16 02:48:46,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:48:46,536 INFO L225 Difference]: With dead ends: 37839 [2022-10-16 02:48:46,537 INFO L226 Difference]: Without dead ends: 37839 [2022-10-16 02:48:46,537 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 [2022-10-16 02:48:46,538 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 90 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:48:46,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 417 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:48:46,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37839 states. [2022-10-16 02:48:47,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37839 to 37834. [2022-10-16 02:48:47,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37834 states, 37832 states have (on average 1.4973567350391204) internal successors, (56648), 37833 states have internal predecessors, (56648), 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) [2022-10-16 02:48:47,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37834 states to 37834 states and 56648 transitions. [2022-10-16 02:48:47,553 INFO L78 Accepts]: Start accepts. Automaton has 37834 states and 56648 transitions. Word has length 107 [2022-10-16 02:48:47,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:48:47,554 INFO L495 AbstractCegarLoop]: Abstraction has 37834 states and 56648 transitions. [2022-10-16 02:48:47,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2022-10-16 02:48:47,555 INFO L276 IsEmpty]: Start isEmpty. Operand 37834 states and 56648 transitions. [2022-10-16 02:48:47,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-10-16 02:48:47,556 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:48:47,556 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:48:47,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 02:48:47,557 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:48:47,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:48:47,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1948435132, now seen corresponding path program 1 times [2022-10-16 02:48:47,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:48:47,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131435988] [2022-10-16 02:48:47,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:47,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:48:47,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:47,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:47,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:48:47,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131435988] [2022-10-16 02:48:47,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131435988] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:48:47,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:48:47,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:48:47,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329836440] [2022-10-16 02:48:47,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:48:47,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:48:47,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:48:47,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:48:47,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:48:47,865 INFO L87 Difference]: Start difference. First operand 37834 states and 56648 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 5 states have internal predecessors, (108), 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) [2022-10-16 02:48:48,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:48:48,552 INFO L93 Difference]: Finished difference Result 37834 states and 56264 transitions. [2022-10-16 02:48:48,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:48:48,552 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 5 states have internal predecessors, (108), 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 108 [2022-10-16 02:48:48,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:48:48,652 INFO L225 Difference]: With dead ends: 37834 [2022-10-16 02:48:48,652 INFO L226 Difference]: Without dead ends: 37834 [2022-10-16 02:48:48,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:48:48,655 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 658 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:48:48,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 251 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:48:48,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37834 states. [2022-10-16 02:48:49,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37834 to 37834. [2022-10-16 02:48:49,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37834 states, 37832 states have (on average 1.4872065975893423) internal successors, (56264), 37833 states have internal predecessors, (56264), 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) [2022-10-16 02:48:49,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37834 states to 37834 states and 56264 transitions. [2022-10-16 02:48:49,968 INFO L78 Accepts]: Start accepts. Automaton has 37834 states and 56264 transitions. Word has length 108 [2022-10-16 02:48:49,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:48:49,968 INFO L495 AbstractCegarLoop]: Abstraction has 37834 states and 56264 transitions. [2022-10-16 02:48:49,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 5 states have internal predecessors, (108), 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) [2022-10-16 02:48:49,969 INFO L276 IsEmpty]: Start isEmpty. Operand 37834 states and 56264 transitions. [2022-10-16 02:48:49,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-10-16 02:48:49,970 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:48:49,970 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:48:49,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 02:48:49,971 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:48:49,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:48:49,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1104429630, now seen corresponding path program 1 times [2022-10-16 02:48:49,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:48:49,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312173414] [2022-10-16 02:48:49,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:49,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:48:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:50,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:50,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:48:50,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312173414] [2022-10-16 02:48:50,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312173414] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:48:50,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:48:50,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:48:50,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944293801] [2022-10-16 02:48:50,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:48:50,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:48:50,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:48:50,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:48:50,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:48:50,193 INFO L87 Difference]: Start difference. First operand 37834 states and 56264 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 5 states have internal predecessors, (108), 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) [2022-10-16 02:48:50,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:48:50,680 INFO L93 Difference]: Finished difference Result 37834 states and 55880 transitions. [2022-10-16 02:48:50,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:48:50,681 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 5 states have internal predecessors, (108), 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 108 [2022-10-16 02:48:50,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:48:50,778 INFO L225 Difference]: With dead ends: 37834 [2022-10-16 02:48:50,778 INFO L226 Difference]: Without dead ends: 37834 [2022-10-16 02:48:50,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:48:50,780 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 703 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:48:50,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 239 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 02:48:50,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37834 states. [2022-10-16 02:48:51,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37834 to 37834. [2022-10-16 02:48:51,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37834 states, 37832 states have (on average 1.4770564601395644) internal successors, (55880), 37833 states have internal predecessors, (55880), 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) [2022-10-16 02:48:51,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37834 states to 37834 states and 55880 transitions. [2022-10-16 02:48:51,952 INFO L78 Accepts]: Start accepts. Automaton has 37834 states and 55880 transitions. Word has length 108 [2022-10-16 02:48:51,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:48:51,953 INFO L495 AbstractCegarLoop]: Abstraction has 37834 states and 55880 transitions. [2022-10-16 02:48:51,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 5 states have internal predecessors, (108), 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) [2022-10-16 02:48:51,953 INFO L276 IsEmpty]: Start isEmpty. Operand 37834 states and 55880 transitions. [2022-10-16 02:48:51,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-10-16 02:48:51,954 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:48:51,955 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:48:51,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 02:48:51,955 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:48:51,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:48:51,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1806029504, now seen corresponding path program 1 times [2022-10-16 02:48:51,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:48:51,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566232084] [2022-10-16 02:48:51,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:51,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:48:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:52,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:52,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:48:52,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566232084] [2022-10-16 02:48:52,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566232084] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:48:52,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:48:52,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 02:48:52,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675590239] [2022-10-16 02:48:52,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:48:52,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 02:48:52,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:48:52,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 02:48:52,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:48:52,392 INFO L87 Difference]: Start difference. First operand 37834 states and 55880 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 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) [2022-10-16 02:48:53,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:48:53,005 INFO L93 Difference]: Finished difference Result 70002 states and 101784 transitions. [2022-10-16 02:48:53,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:48:53,005 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 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 108 [2022-10-16 02:48:53,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:48:53,179 INFO L225 Difference]: With dead ends: 70002 [2022-10-16 02:48:53,180 INFO L226 Difference]: Without dead ends: 70002 [2022-10-16 02:48:53,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-10-16 02:48:53,182 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 949 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:48:53,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [949 Valid, 963 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:48:53,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70002 states. [2022-10-16 02:48:54,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70002 to 39370. [2022-10-16 02:48:54,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39370 states, 39368 states have (on average 1.4551920341394025) internal successors, (57288), 39369 states have internal predecessors, (57288), 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) [2022-10-16 02:48:54,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39370 states to 39370 states and 57288 transitions. [2022-10-16 02:48:54,694 INFO L78 Accepts]: Start accepts. Automaton has 39370 states and 57288 transitions. Word has length 108 [2022-10-16 02:48:54,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:48:54,695 INFO L495 AbstractCegarLoop]: Abstraction has 39370 states and 57288 transitions. [2022-10-16 02:48:54,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 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) [2022-10-16 02:48:54,695 INFO L276 IsEmpty]: Start isEmpty. Operand 39370 states and 57288 transitions. [2022-10-16 02:48:54,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-10-16 02:48:54,696 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:48:54,697 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:48:54,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 02:48:54,697 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:48:54,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:48:54,698 INFO L85 PathProgramCache]: Analyzing trace with hash -364477821, now seen corresponding path program 1 times [2022-10-16 02:48:54,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:48:54,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465652618] [2022-10-16 02:48:54,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:54,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:48:54,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:54,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:54,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:48:54,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465652618] [2022-10-16 02:48:54,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465652618] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:48:54,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731383286] [2022-10-16 02:48:54,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:54,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:48:54,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:48:54,846 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) [2022-10-16 02:48:54,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 02:48:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:55,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 02:48:55,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:48:55,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 02:48:55,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:48:55,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731383286] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:48:55,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:48:55,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 02:48:55,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422296618] [2022-10-16 02:48:55,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:48:55,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:48:55,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:48:55,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:48:55,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:48:55,248 INFO L87 Difference]: Start difference. First operand 39370 states and 57288 transitions. Second operand has 3 states, 2 states have (on average 55.5) 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) [2022-10-16 02:48:55,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:48:55,399 INFO L93 Difference]: Finished difference Result 39369 states and 57287 transitions. [2022-10-16 02:48:55,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:48:55,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 55.5) 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 111 [2022-10-16 02:48:55,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:48:55,525 INFO L225 Difference]: With dead ends: 39369 [2022-10-16 02:48:55,525 INFO L226 Difference]: Without dead ends: 39367 [2022-10-16 02:48:55,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:48:55,526 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 78 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:48:55,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 188 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:48:55,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39367 states. [2022-10-16 02:48:56,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39367 to 39367. [2022-10-16 02:48:56,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39367 states, 39366 states have (on average 1.4357059391352944) internal successors, (56518), 39366 states have internal predecessors, (56518), 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) [2022-10-16 02:48:56,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39367 states to 39367 states and 56518 transitions. [2022-10-16 02:48:56,695 INFO L78 Accepts]: Start accepts. Automaton has 39367 states and 56518 transitions. Word has length 111 [2022-10-16 02:48:56,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:48:56,696 INFO L495 AbstractCegarLoop]: Abstraction has 39367 states and 56518 transitions. [2022-10-16 02:48:56,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 55.5) 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) [2022-10-16 02:48:56,696 INFO L276 IsEmpty]: Start isEmpty. Operand 39367 states and 56518 transitions. [2022-10-16 02:48:56,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-10-16 02:48:56,721 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:48:56,721 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:48:56,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 02:48:56,936 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,SelfDestructingSolverStorable17 [2022-10-16 02:48:56,936 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:48:56,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:48:56,938 INFO L85 PathProgramCache]: Analyzing trace with hash 150223880, now seen corresponding path program 1 times [2022-10-16 02:48:56,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:48:56,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649776169] [2022-10-16 02:48:56,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:56,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:48:57,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:57,364 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 02:48:57,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:48:57,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649776169] [2022-10-16 02:48:57,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649776169] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:48:57,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:48:57,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-16 02:48:57,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817417629] [2022-10-16 02:48:57,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:48:57,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 02:48:57,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:48:57,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 02:48:57,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:48:57,367 INFO L87 Difference]: Start difference. First operand 39367 states and 56518 transitions. Second operand has 10 states, 10 states have (on average 13.7) internal successors, (137), 10 states have internal predecessors, (137), 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) [2022-10-16 02:48:59,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:48:59,494 INFO L93 Difference]: Finished difference Result 322007 states and 461710 transitions. [2022-10-16 02:48:59,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:48:59,501 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.7) internal successors, (137), 10 states have internal predecessors, (137), 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 148 [2022-10-16 02:48:59,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:00,130 INFO L225 Difference]: With dead ends: 322007 [2022-10-16 02:49:00,130 INFO L226 Difference]: Without dead ends: 322007 [2022-10-16 02:49:00,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-10-16 02:49:00,131 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 3119 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3119 SdHoareTripleChecker+Valid, 1518 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:00,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3119 Valid, 1518 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:49:00,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322007 states. [2022-10-16 02:49:03,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322007 to 78663. [2022-10-16 02:49:03,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78663 states, 78662 states have (on average 1.4312120210520962) internal successors, (112582), 78662 states have internal predecessors, (112582), 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) [2022-10-16 02:49:03,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78663 states to 78663 states and 112582 transitions. [2022-10-16 02:49:03,934 INFO L78 Accepts]: Start accepts. Automaton has 78663 states and 112582 transitions. Word has length 148 [2022-10-16 02:49:03,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:03,934 INFO L495 AbstractCegarLoop]: Abstraction has 78663 states and 112582 transitions. [2022-10-16 02:49:03,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.7) internal successors, (137), 10 states have internal predecessors, (137), 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) [2022-10-16 02:49:03,934 INFO L276 IsEmpty]: Start isEmpty. Operand 78663 states and 112582 transitions. [2022-10-16 02:49:03,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-10-16 02:49:03,979 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:03,979 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:49:03,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 02:49:03,980 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:03,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:03,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1397731496, now seen corresponding path program 1 times [2022-10-16 02:49:03,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:03,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887667544] [2022-10-16 02:49:03,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:03,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:04,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:04,386 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 02:49:04,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:04,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887667544] [2022-10-16 02:49:04,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887667544] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:04,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:04,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-16 02:49:04,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166015039] [2022-10-16 02:49:04,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:04,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 02:49:04,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:04,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 02:49:04,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:49:04,389 INFO L87 Difference]: Start difference. First operand 78663 states and 112582 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 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) [2022-10-16 02:49:06,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:06,854 INFO L93 Difference]: Finished difference Result 361303 states and 517774 transitions. [2022-10-16 02:49:06,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:49:06,855 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 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 148 [2022-10-16 02:49:06,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:07,507 INFO L225 Difference]: With dead ends: 361303 [2022-10-16 02:49:07,507 INFO L226 Difference]: Without dead ends: 361303 [2022-10-16 02:49:07,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-10-16 02:49:07,509 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 2777 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2777 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:07,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2777 Valid, 1601 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:49:07,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361303 states. [2022-10-16 02:49:11,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361303 to 137671. [2022-10-16 02:49:11,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137671 states, 137670 states have (on average 1.4262947628386722) internal successors, (196358), 137670 states have internal predecessors, (196358), 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) [2022-10-16 02:49:12,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137671 states to 137671 states and 196358 transitions. [2022-10-16 02:49:12,050 INFO L78 Accepts]: Start accepts. Automaton has 137671 states and 196358 transitions. Word has length 148 [2022-10-16 02:49:12,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:12,051 INFO L495 AbstractCegarLoop]: Abstraction has 137671 states and 196358 transitions. [2022-10-16 02:49:12,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 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) [2022-10-16 02:49:12,051 INFO L276 IsEmpty]: Start isEmpty. Operand 137671 states and 196358 transitions. [2022-10-16 02:49:12,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-10-16 02:49:12,107 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:12,108 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:49:12,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 02:49:12,108 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:12,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:12,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1427802818, now seen corresponding path program 1 times [2022-10-16 02:49:12,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:12,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607749541] [2022-10-16 02:49:12,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:12,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:13,314 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 02:49:13,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:13,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607749541] [2022-10-16 02:49:13,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607749541] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:13,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:13,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-16 02:49:13,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288536844] [2022-10-16 02:49:13,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:13,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 02:49:13,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:13,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 02:49:13,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:49:13,320 INFO L87 Difference]: Start difference. First operand 137671 states and 196358 transitions. Second operand has 10 states, 10 states have (on average 14.2) internal successors, (142), 10 states have internal predecessors, (142), 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) [2022-10-16 02:49:15,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:15,329 INFO L93 Difference]: Finished difference Result 400599 states and 573838 transitions. [2022-10-16 02:49:15,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:49:15,330 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.2) internal successors, (142), 10 states have internal predecessors, (142), 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 148 [2022-10-16 02:49:15,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:16,483 INFO L225 Difference]: With dead ends: 400599 [2022-10-16 02:49:16,483 INFO L226 Difference]: Without dead ends: 400599 [2022-10-16 02:49:16,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-10-16 02:49:16,485 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 2627 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2627 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:16,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2627 Valid, 1688 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:49:16,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400599 states. [2022-10-16 02:49:20,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400599 to 176967. [2022-10-16 02:49:20,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176967 states, 176966 states have (on average 1.426386989591221) internal successors, (252422), 176966 states have internal predecessors, (252422), 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) [2022-10-16 02:49:21,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176967 states to 176967 states and 252422 transitions. [2022-10-16 02:49:21,480 INFO L78 Accepts]: Start accepts. Automaton has 176967 states and 252422 transitions. Word has length 148 [2022-10-16 02:49:21,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:21,480 INFO L495 AbstractCegarLoop]: Abstraction has 176967 states and 252422 transitions. [2022-10-16 02:49:21,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.2) internal successors, (142), 10 states have internal predecessors, (142), 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) [2022-10-16 02:49:21,491 INFO L276 IsEmpty]: Start isEmpty. Operand 176967 states and 252422 transitions. [2022-10-16 02:49:21,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-10-16 02:49:21,528 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:21,528 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:49:21,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 02:49:21,529 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:21,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:21,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1631705438, now seen corresponding path program 1 times [2022-10-16 02:49:21,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:21,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164949301] [2022-10-16 02:49:21,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:21,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:21,907 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 02:49:21,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:21,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164949301] [2022-10-16 02:49:21,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164949301] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:21,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:21,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-16 02:49:21,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100281983] [2022-10-16 02:49:21,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:21,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 02:49:21,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:21,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 02:49:21,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:49:21,911 INFO L87 Difference]: Start difference. First operand 176967 states and 252422 transitions. Second operand has 10 states, 10 states have (on average 14.3) internal successors, (143), 10 states have internal predecessors, (143), 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) [2022-10-16 02:49:24,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:24,971 INFO L93 Difference]: Finished difference Result 439895 states and 629902 transitions. [2022-10-16 02:49:24,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:49:24,971 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 10 states have internal predecessors, (143), 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 148 [2022-10-16 02:49:24,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:25,841 INFO L225 Difference]: With dead ends: 439895 [2022-10-16 02:49:25,841 INFO L226 Difference]: Without dead ends: 439895 [2022-10-16 02:49:25,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-10-16 02:49:25,843 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 2623 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2623 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:25,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2623 Valid, 1726 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:49:26,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439895 states. [2022-10-16 02:49:31,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439895 to 216263. [2022-10-16 02:49:31,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216263 states, 216262 states have (on average 1.4264457001229989) internal successors, (308486), 216262 states have internal predecessors, (308486), 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) [2022-10-16 02:49:32,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216263 states to 216263 states and 308486 transitions. [2022-10-16 02:49:32,549 INFO L78 Accepts]: Start accepts. Automaton has 216263 states and 308486 transitions. Word has length 148 [2022-10-16 02:49:32,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:32,549 INFO L495 AbstractCegarLoop]: Abstraction has 216263 states and 308486 transitions. [2022-10-16 02:49:32,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 10 states have internal predecessors, (143), 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) [2022-10-16 02:49:32,550 INFO L276 IsEmpty]: Start isEmpty. Operand 216263 states and 308486 transitions. [2022-10-16 02:49:32,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-10-16 02:49:32,593 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:32,594 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:49:32,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-16 02:49:32,594 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:32,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:32,595 INFO L85 PathProgramCache]: Analyzing trace with hash 210709886, now seen corresponding path program 1 times [2022-10-16 02:49:32,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:32,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346725466] [2022-10-16 02:49:32,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:32,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:33,759 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 02:49:33,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:33,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346725466] [2022-10-16 02:49:33,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346725466] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:33,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:33,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-16 02:49:33,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995213243] [2022-10-16 02:49:33,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:33,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 02:49:33,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:33,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 02:49:33,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:49:33,763 INFO L87 Difference]: Start difference. First operand 216263 states and 308486 transitions. Second operand has 10 states, 10 states have (on average 14.4) internal successors, (144), 10 states have internal predecessors, (144), 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) [2022-10-16 02:49:35,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:35,877 INFO L93 Difference]: Finished difference Result 479191 states and 685966 transitions. [2022-10-16 02:49:35,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:49:35,878 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.4) internal successors, (144), 10 states have internal predecessors, (144), 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 148 [2022-10-16 02:49:35,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:37,365 INFO L225 Difference]: With dead ends: 479191 [2022-10-16 02:49:37,365 INFO L226 Difference]: Without dead ends: 479191 [2022-10-16 02:49:37,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-10-16 02:49:37,366 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 2727 mSDsluCounter, 1445 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2727 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:37,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2727 Valid, 1740 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:49:37,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479191 states. [2022-10-16 02:49:43,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479191 to 255559. [2022-10-16 02:49:43,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255559 states, 255558 states have (on average 1.4264863553479055) internal successors, (364550), 255558 states have internal predecessors, (364550), 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) [2022-10-16 02:49:44,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255559 states to 255559 states and 364550 transitions. [2022-10-16 02:49:44,848 INFO L78 Accepts]: Start accepts. Automaton has 255559 states and 364550 transitions. Word has length 148 [2022-10-16 02:49:44,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:44,852 INFO L495 AbstractCegarLoop]: Abstraction has 255559 states and 364550 transitions. [2022-10-16 02:49:44,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.4) internal successors, (144), 10 states have internal predecessors, (144), 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) [2022-10-16 02:49:44,853 INFO L276 IsEmpty]: Start isEmpty. Operand 255559 states and 364550 transitions. [2022-10-16 02:49:44,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-10-16 02:49:44,885 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:44,885 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:49:44,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-16 02:49:44,886 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:44,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:44,887 INFO L85 PathProgramCache]: Analyzing trace with hash -355110498, now seen corresponding path program 1 times [2022-10-16 02:49:44,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:44,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748291612] [2022-10-16 02:49:44,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:44,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:46,210 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 02:49:46,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:46,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748291612] [2022-10-16 02:49:46,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748291612] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:46,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:46,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-16 02:49:46,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991270805] [2022-10-16 02:49:46,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:46,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 02:49:46,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:46,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 02:49:46,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:49:46,214 INFO L87 Difference]: Start difference. First operand 255559 states and 364550 transitions. Second operand has 10 states, 10 states have (on average 14.5) internal successors, (145), 10 states have internal predecessors, (145), 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) [2022-10-16 02:49:49,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:49,923 INFO L93 Difference]: Finished difference Result 518487 states and 742030 transitions. [2022-10-16 02:49:49,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:49:49,923 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.5) internal successors, (145), 10 states have internal predecessors, (145), 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 148 [2022-10-16 02:49:49,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:51,427 INFO L225 Difference]: With dead ends: 518487 [2022-10-16 02:49:51,427 INFO L226 Difference]: Without dead ends: 518487 [2022-10-16 02:49:51,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-10-16 02:49:51,430 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 2905 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2905 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:51,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2905 Valid, 1710 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:49:51,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518487 states. [2022-10-16 02:49:58,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518487 to 294855. [2022-10-16 02:49:58,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294855 states, 294854 states have (on average 1.4265161741065069) internal successors, (420614), 294854 states have internal predecessors, (420614), 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) [2022-10-16 02:50:00,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294855 states to 294855 states and 420614 transitions. [2022-10-16 02:50:00,215 INFO L78 Accepts]: Start accepts. Automaton has 294855 states and 420614 transitions. Word has length 148 [2022-10-16 02:50:00,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:50:00,215 INFO L495 AbstractCegarLoop]: Abstraction has 294855 states and 420614 transitions. [2022-10-16 02:50:00,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.5) internal successors, (145), 10 states have internal predecessors, (145), 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) [2022-10-16 02:50:00,216 INFO L276 IsEmpty]: Start isEmpty. Operand 294855 states and 420614 transitions. [2022-10-16 02:50:00,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-10-16 02:50:00,260 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:50:00,261 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:50:00,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-10-16 02:50:00,261 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:50:00,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:50:00,262 INFO L85 PathProgramCache]: Analyzing trace with hash -165894722, now seen corresponding path program 1 times [2022-10-16 02:50:00,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:50:00,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174803638] [2022-10-16 02:50:00,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:50:00,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:50:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:50:00,608 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 02:50:00,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:50:00,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174803638] [2022-10-16 02:50:00,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174803638] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:50:00,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:50:00,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-16 02:50:00,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38900340] [2022-10-16 02:50:00,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:50:00,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 02:50:00,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:50:00,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 02:50:00,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:50:00,612 INFO L87 Difference]: Start difference. First operand 294855 states and 420614 transitions. Second operand has 10 states, 10 states have (on average 14.6) internal successors, (146), 10 states have internal predecessors, (146), 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) [2022-10-16 02:50:03,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:50:03,454 INFO L93 Difference]: Finished difference Result 557783 states and 798094 transitions. [2022-10-16 02:50:03,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:50:03,455 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.6) internal successors, (146), 10 states have internal predecessors, (146), 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 148 [2022-10-16 02:50:03,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:50:04,419 INFO L225 Difference]: With dead ends: 557783 [2022-10-16 02:50:04,419 INFO L226 Difference]: Without dead ends: 557783 [2022-10-16 02:50:04,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-10-16 02:50:04,420 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 3074 mSDsluCounter, 1412 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3074 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:50:04,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3074 Valid, 1708 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:50:04,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557783 states. [2022-10-16 02:50:10,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557783 to 334151. [2022-10-16 02:50:11,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334151 states, 334150 states have (on average 1.4265389795002243) internal successors, (476678), 334150 states have internal predecessors, (476678), 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) [2022-10-16 02:50:13,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334151 states to 334151 states and 476678 transitions. [2022-10-16 02:50:13,227 INFO L78 Accepts]: Start accepts. Automaton has 334151 states and 476678 transitions. Word has length 148 [2022-10-16 02:50:13,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:50:13,228 INFO L495 AbstractCegarLoop]: Abstraction has 334151 states and 476678 transitions. [2022-10-16 02:50:13,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.6) internal successors, (146), 10 states have internal predecessors, (146), 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) [2022-10-16 02:50:13,228 INFO L276 IsEmpty]: Start isEmpty. Operand 334151 states and 476678 transitions. [2022-10-16 02:50:13,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-10-16 02:50:13,276 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:50:13,276 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:50:13,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-10-16 02:50:13,277 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:50:13,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:50:13,277 INFO L85 PathProgramCache]: Analyzing trace with hash -462632482, now seen corresponding path program 1 times [2022-10-16 02:50:13,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:50:13,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949703327] [2022-10-16 02:50:13,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:50:13,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:50:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:50:13,600 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:50:13,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:50:13,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949703327] [2022-10-16 02:50:13,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949703327] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:50:13,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:50:13,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-16 02:50:13,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480890827] [2022-10-16 02:50:13,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:50:13,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 02:50:13,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:50:13,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 02:50:13,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:50:13,608 INFO L87 Difference]: Start difference. First operand 334151 states and 476678 transitions. Second operand has 10 states, 10 states have (on average 14.7) internal successors, (147), 10 states have internal predecessors, (147), 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) [2022-10-16 02:50:14,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-10-16 02:50:17,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:50:17,006 INFO L93 Difference]: Finished difference Result 584919 states and 837006 transitions. [2022-10-16 02:50:17,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:50:17,007 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.7) internal successors, (147), 10 states have internal predecessors, (147), 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 148 [2022-10-16 02:50:17,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:50:19,291 INFO L225 Difference]: With dead ends: 584919 [2022-10-16 02:50:19,291 INFO L226 Difference]: Without dead ends: 584919 [2022-10-16 02:50:19,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-10-16 02:50:19,292 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 3075 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3075 SdHoareTripleChecker+Valid, 1546 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:50:19,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3075 Valid, 1546 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-16 02:50:19,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584919 states. [2022-10-16 02:50:27,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584919 to 361287. [2022-10-16 02:50:29,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361287 states, 361286 states have (on average 1.4270965384764425) internal successors, (515590), 361286 states have internal predecessors, (515590), 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) [2022-10-16 02:50:30,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361287 states to 361287 states and 515590 transitions. [2022-10-16 02:50:30,744 INFO L78 Accepts]: Start accepts. Automaton has 361287 states and 515590 transitions. Word has length 148 [2022-10-16 02:50:30,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:50:30,745 INFO L495 AbstractCegarLoop]: Abstraction has 361287 states and 515590 transitions. [2022-10-16 02:50:30,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.7) internal successors, (147), 10 states have internal predecessors, (147), 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) [2022-10-16 02:50:30,745 INFO L276 IsEmpty]: Start isEmpty. Operand 361287 states and 515590 transitions. [2022-10-16 02:50:30,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-10-16 02:50:30,804 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:50:30,804 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:50:30,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-10-16 02:50:30,805 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:50:30,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:50:30,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1271279101, now seen corresponding path program 1 times [2022-10-16 02:50:30,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:50:30,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640095879] [2022-10-16 02:50:30,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:50:30,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:50:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:50:31,852 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:50:31,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:50:31,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640095879] [2022-10-16 02:50:31,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640095879] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:50:31,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:50:31,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:50:31,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394833758] [2022-10-16 02:50:31,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:50:31,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:50:31,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:50:31,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:50:31,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:50:31,855 INFO L87 Difference]: Start difference. First operand 361287 states and 515590 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2022-10-16 02:50:33,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:50:33,218 INFO L93 Difference]: Finished difference Result 361289 states and 512071 transitions. [2022-10-16 02:50:33,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:50:33,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 149 [2022-10-16 02:50:33,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:50:33,676 INFO L225 Difference]: With dead ends: 361289 [2022-10-16 02:50:33,676 INFO L226 Difference]: Without dead ends: 361289 [2022-10-16 02:50:33,676 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 [2022-10-16 02:50:33,677 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 76 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:50:33,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 403 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:50:33,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361289 states. [2022-10-16 02:50:38,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361289 to 361287. [2022-10-16 02:50:39,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361287 states, 361286 states have (on average 1.4173535647658642) internal successors, (512070), 361286 states have internal predecessors, (512070), 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) [2022-10-16 02:50:41,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361287 states to 361287 states and 512070 transitions. [2022-10-16 02:50:41,039 INFO L78 Accepts]: Start accepts. Automaton has 361287 states and 512070 transitions. Word has length 149 [2022-10-16 02:50:41,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:50:41,040 INFO L495 AbstractCegarLoop]: Abstraction has 361287 states and 512070 transitions. [2022-10-16 02:50:41,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2022-10-16 02:50:41,040 INFO L276 IsEmpty]: Start isEmpty. Operand 361287 states and 512070 transitions. [2022-10-16 02:50:41,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-10-16 02:50:41,061 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:50:41,061 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:50:41,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-10-16 02:50:41,062 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:50:41,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:50:41,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1358397895, now seen corresponding path program 1 times [2022-10-16 02:50:41,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:50:41,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376944141] [2022-10-16 02:50:41,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:50:41,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:50:41,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:50:41,983 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:50:41,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:50:41,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376944141] [2022-10-16 02:50:41,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376944141] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:50:41,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:50:41,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:50:41,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580027704] [2022-10-16 02:50:41,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:50:41,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:50:41,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:50:41,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:50:41,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:50:41,986 INFO L87 Difference]: Start difference. First operand 361287 states and 512070 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2022-10-16 02:50:42,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:50:42,457 INFO L93 Difference]: Finished difference Result 180681 states and 254311 transitions. [2022-10-16 02:50:42,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:50:42,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 149 [2022-10-16 02:50:42,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:50:42,662 INFO L225 Difference]: With dead ends: 180681 [2022-10-16 02:50:42,662 INFO L226 Difference]: Without dead ends: 180681 [2022-10-16 02:50:42,663 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 [2022-10-16 02:50:42,663 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 72 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:50:42,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 388 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:50:42,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180681 states. [2022-10-16 02:50:45,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180681 to 180679. [2022-10-16 02:50:45,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180679 states, 180678 states have (on average 1.4075316308571049) internal successors, (254310), 180678 states have internal predecessors, (254310), 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) [2022-10-16 02:50:46,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180679 states to 180679 states and 254310 transitions. [2022-10-16 02:50:46,272 INFO L78 Accepts]: Start accepts. Automaton has 180679 states and 254310 transitions. Word has length 149 [2022-10-16 02:50:46,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:50:46,273 INFO L495 AbstractCegarLoop]: Abstraction has 180679 states and 254310 transitions. [2022-10-16 02:50:46,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2022-10-16 02:50:46,273 INFO L276 IsEmpty]: Start isEmpty. Operand 180679 states and 254310 transitions. [2022-10-16 02:50:46,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-10-16 02:50:46,287 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:50:46,287 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:50:46,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-10-16 02:50:46,287 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:50:46,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:50:46,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1817294191, now seen corresponding path program 1 times [2022-10-16 02:50:46,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:50:46,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577029437] [2022-10-16 02:50:46,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:50:46,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:50:46,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:50:47,121 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:50:47,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:50:47,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577029437] [2022-10-16 02:50:47,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577029437] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:50:47,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850948835] [2022-10-16 02:50:47,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:50:47,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:50:47,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:50:47,124 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) [2022-10-16 02:50:47,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 02:50:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:50:47,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 02:50:47,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:50:48,202 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:50:48,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:50:48,854 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:50:48,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850948835] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:50:48,855 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:50:48,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 4] total 20 [2022-10-16 02:50:48,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233903333] [2022-10-16 02:50:48,855 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:50:48,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-16 02:50:48,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:50:48,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-16 02:50:48,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2022-10-16 02:50:48,857 INFO L87 Difference]: Start difference. First operand 180679 states and 254310 transitions. Second operand has 20 states, 20 states have (on average 21.55) internal successors, (431), 20 states have internal predecessors, (431), 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) [2022-10-16 02:51:07,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:51:07,748 INFO L93 Difference]: Finished difference Result 2019131 states and 2793083 transitions. [2022-10-16 02:51:07,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-10-16 02:51:07,749 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 21.55) internal successors, (431), 20 states have internal predecessors, (431), 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 149 [2022-10-16 02:51:07,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:51:12,281 INFO L225 Difference]: With dead ends: 2019131 [2022-10-16 02:51:12,282 INFO L226 Difference]: Without dead ends: 2019131 [2022-10-16 02:51:12,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10561 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=4277, Invalid=20529, Unknown=0, NotChecked=0, Total=24806 [2022-10-16 02:51:12,290 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 8358 mSDsluCounter, 3158 mSDsCounter, 0 mSdLazyCounter, 3486 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8358 SdHoareTripleChecker+Valid, 3560 SdHoareTripleChecker+Invalid, 3784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 3486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-10-16 02:51:12,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8358 Valid, 3560 Invalid, 3784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 3486 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-10-16 02:51:13,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2019131 states.