/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_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 02:49:37,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 02:49:37,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 02:49:37,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 02:49:37,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 02:49:37,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 02:49:37,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 02:49:37,799 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 02:49:37,826 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 02:49:37,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 02:49:37,827 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 02:49:37,827 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 02:49:37,828 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 02:49:37,829 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 02:49:37,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 02:49:37,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 02:49:37,831 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 02:49:37,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 02:49:37,831 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 02:49:37,832 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 02:49:37,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 02:49:37,832 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 02:49:37,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 02:49:37,833 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 02:49:37,833 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 02:49:37,833 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 02:49:37,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 02:49:37,834 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 02:49:37,834 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 02:49:37,835 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 02:49:37,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 02:49:37,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 02:49:37,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 02:49:37,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:49:37,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 02:49:37,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 02:49:37,837 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 02:49:37,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 02:49:37,838 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 02:49:38,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 02:49:38,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 02:49:38,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 02:49:38,278 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 02:49:38,279 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 02:49:38,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c [2022-10-16 02:49:38,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b86f17209/bc730a890c0d4f87ae285ff2515de9df/FLAG32a0af835 [2022-10-16 02:49:39,069 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 02:49:39,070 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c [2022-10-16 02:49:39,085 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b86f17209/bc730a890c0d4f87ae285ff2515de9df/FLAG32a0af835 [2022-10-16 02:49:39,383 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b86f17209/bc730a890c0d4f87ae285ff2515de9df [2022-10-16 02:49:39,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 02:49:39,395 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 02:49:39,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 02:49:39,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 02:49:39,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 02:49:39,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:49:39" (1/1) ... [2022-10-16 02:49:39,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45b6e152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:39, skipping insertion in model container [2022-10-16 02:49:39,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:49:39" (1/1) ... [2022-10-16 02:49:39,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 02:49:39,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 02:49:39,711 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_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c[12951,12964] [2022-10-16 02:49:39,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:49:39,729 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 02:49:39,832 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_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c[12951,12964] [2022-10-16 02:49:39,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:49:39,852 INFO L208 MainTranslator]: Completed translation [2022-10-16 02:49:39,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:39 WrapperNode [2022-10-16 02:49:39,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 02:49:39,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 02:49:39,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 02:49:39,855 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 02:49:39,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:39" (1/1) ... [2022-10-16 02:49:39,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:39" (1/1) ... [2022-10-16 02:49:39,947 INFO L138 Inliner]: procedures = 23, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 467 [2022-10-16 02:49:39,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 02:49:39,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 02:49:39,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 02:49:39,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 02:49:39,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:39" (1/1) ... [2022-10-16 02:49:39,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:39" (1/1) ... [2022-10-16 02:49:39,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:39" (1/1) ... [2022-10-16 02:49:39,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:39" (1/1) ... [2022-10-16 02:49:39,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:39" (1/1) ... [2022-10-16 02:49:40,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:39" (1/1) ... [2022-10-16 02:49:40,013 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:39" (1/1) ... [2022-10-16 02:49:40,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:39" (1/1) ... [2022-10-16 02:49:40,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 02:49:40,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 02:49:40,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 02:49:40,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 02:49:40,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:39" (1/1) ... [2022-10-16 02:49:40,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:49:40,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:49:40,086 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 02:49:40,088 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 02:49:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 02:49:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 02:49:40,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 02:49:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 02:49:40,336 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 02:49:40,338 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 02:49:41,099 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 02:49:41,123 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 02:49:41,124 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 02:49:41,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:49:41 BoogieIcfgContainer [2022-10-16 02:49:41,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 02:49:41,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 02:49:41,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 02:49:41,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 02:49:41,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:49:39" (1/3) ... [2022-10-16 02:49:41,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@abba208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:49:41, skipping insertion in model container [2022-10-16 02:49:41,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:39" (2/3) ... [2022-10-16 02:49:41,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@abba208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:49:41, skipping insertion in model container [2022-10-16 02:49:41,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:49:41" (3/3) ... [2022-10-16 02:49:41,152 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c [2022-10-16 02:49:41,194 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 02:49:41,195 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 02:49:41,255 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 02:49:41,265 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;@3cfb4c65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 02:49:41,265 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 02:49:41,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 141 states have (on average 1.7446808510638299) internal successors, (246), 143 states have internal predecessors, (246), 0 states have call successors, (0), 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 02:49:41,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 02:49:41,281 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:41,282 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] [2022-10-16 02:49:41,282 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:41,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:41,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1257439287, now seen corresponding path program 1 times [2022-10-16 02:49:41,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:41,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476752297] [2022-10-16 02:49:41,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:41,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:41,725 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 02:49:41,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:41,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476752297] [2022-10-16 02:49:41,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476752297] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:41,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:41,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 02:49:41,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586347794] [2022-10-16 02:49:41,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:41,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 02:49:41,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:41,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 02:49:41,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 02:49:41,775 INFO L87 Difference]: Start difference. First operand has 144 states, 141 states have (on average 1.7446808510638299) internal successors, (246), 143 states have internal predecessors, (246), 0 states have call successors, (0), 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 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 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 02:49:41,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:41,807 INFO L93 Difference]: Finished difference Result 139 states and 238 transitions. [2022-10-16 02:49:41,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 02:49:41,810 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-10-16 02:49:41,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:41,824 INFO L225 Difference]: With dead ends: 139 [2022-10-16 02:49:41,824 INFO L226 Difference]: Without dead ends: 139 [2022-10-16 02:49:41,827 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 02:49:41,832 INFO L413 NwaCegarLoop]: 238 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, 238 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 02:49:41,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:41,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-10-16 02:49:41,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2022-10-16 02:49:41,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 138 states have (on average 1.7246376811594204) internal successors, (238), 138 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:41,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 238 transitions. [2022-10-16 02:49:41,892 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 238 transitions. Word has length 22 [2022-10-16 02:49:41,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:41,893 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 238 transitions. [2022-10-16 02:49:41,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 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 02:49:41,894 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 238 transitions. [2022-10-16 02:49:41,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 02:49:41,897 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:41,897 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] [2022-10-16 02:49:41,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 02:49:41,898 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:41,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:41,899 INFO L85 PathProgramCache]: Analyzing trace with hash -690960342, now seen corresponding path program 1 times [2022-10-16 02:49:41,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:41,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869029458] [2022-10-16 02:49:41,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:41,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:42,275 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 02:49:42,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:42,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869029458] [2022-10-16 02:49:42,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869029458] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:42,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:42,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:49:42,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571609397] [2022-10-16 02:49:42,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:42,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:49:42,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:42,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:49:42,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:42,282 INFO L87 Difference]: Start difference. First operand 139 states and 238 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 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 02:49:42,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:42,386 INFO L93 Difference]: Finished difference Result 142 states and 240 transitions. [2022-10-16 02:49:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:49:42,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2022-10-16 02:49:42,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:42,390 INFO L225 Difference]: With dead ends: 142 [2022-10-16 02:49:42,390 INFO L226 Difference]: Without dead ends: 139 [2022-10-16 02:49:42,391 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 02:49:42,393 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 3 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:42,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 917 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:42,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-10-16 02:49:42,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2022-10-16 02:49:42,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 138 states have (on average 1.5507246376811594) internal successors, (214), 138 states have internal predecessors, (214), 0 states have call successors, (0), 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 02:49:42,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 214 transitions. [2022-10-16 02:49:42,412 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 214 transitions. Word has length 37 [2022-10-16 02:49:42,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:42,412 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 214 transitions. [2022-10-16 02:49:42,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 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 02:49:42,413 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 214 transitions. [2022-10-16 02:49:42,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-16 02:49:42,416 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:42,416 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] [2022-10-16 02:49:42,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 02:49:42,417 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:42,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:42,418 INFO L85 PathProgramCache]: Analyzing trace with hash 747585835, now seen corresponding path program 1 times [2022-10-16 02:49:42,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:42,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042019213] [2022-10-16 02:49:42,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:42,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:42,683 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 02:49:42,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:42,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042019213] [2022-10-16 02:49:42,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042019213] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:42,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:42,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:49:42,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184367059] [2022-10-16 02:49:42,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:42,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:49:42,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:42,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:49:42,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:42,699 INFO L87 Difference]: Start difference. First operand 139 states and 214 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:42,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:42,791 INFO L93 Difference]: Finished difference Result 214 states and 332 transitions. [2022-10-16 02:49:42,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:49:42,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-10-16 02:49:42,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:42,795 INFO L225 Difference]: With dead ends: 214 [2022-10-16 02:49:42,795 INFO L226 Difference]: Without dead ends: 214 [2022-10-16 02:49:42,796 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 02:49:42,798 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 115 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:42,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 382 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:49:42,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-10-16 02:49:42,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 211. [2022-10-16 02:49:42,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.5714285714285714) internal successors, (330), 210 states have internal predecessors, (330), 0 states have call successors, (0), 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 02:49:42,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 330 transitions. [2022-10-16 02:49:42,821 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 330 transitions. Word has length 60 [2022-10-16 02:49:42,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:42,822 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 330 transitions. [2022-10-16 02:49:42,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:42,823 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 330 transitions. [2022-10-16 02:49:42,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-16 02:49:42,826 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:42,826 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] [2022-10-16 02:49:42,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 02:49:42,827 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:42,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:42,828 INFO L85 PathProgramCache]: Analyzing trace with hash -53855584, now seen corresponding path program 1 times [2022-10-16 02:49:42,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:42,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397401703] [2022-10-16 02:49:42,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:42,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:42,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:43,052 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 02:49:43,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:43,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397401703] [2022-10-16 02:49:43,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397401703] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:43,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:43,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:49:43,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485395650] [2022-10-16 02:49:43,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:43,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:49:43,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:43,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:49:43,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:43,060 INFO L87 Difference]: Start difference. First operand 211 states and 330 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 02:49:43,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:43,104 INFO L93 Difference]: Finished difference Result 352 states and 556 transitions. [2022-10-16 02:49:43,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:49:43,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-10-16 02:49:43,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:43,108 INFO L225 Difference]: With dead ends: 352 [2022-10-16 02:49:43,108 INFO L226 Difference]: Without dead ends: 352 [2022-10-16 02:49:43,109 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 02:49:43,111 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 117 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:43,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 395 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:43,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-10-16 02:49:43,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 348. [2022-10-16 02:49:43,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 347 states have (on average 1.5936599423631124) internal successors, (553), 347 states have internal predecessors, (553), 0 states have call successors, (0), 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 02:49:43,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 553 transitions. [2022-10-16 02:49:43,137 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 553 transitions. Word has length 62 [2022-10-16 02:49:43,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:43,138 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 553 transitions. [2022-10-16 02:49:43,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 02:49:43,139 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 553 transitions. [2022-10-16 02:49:43,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-16 02:49:43,142 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:43,142 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] [2022-10-16 02:49:43,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 02:49:43,143 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:43,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:43,144 INFO L85 PathProgramCache]: Analyzing trace with hash -730458987, now seen corresponding path program 1 times [2022-10-16 02:49:43,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:43,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967227626] [2022-10-16 02:49:43,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:43,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:43,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:43,312 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 02:49:43,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:43,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967227626] [2022-10-16 02:49:43,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967227626] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:43,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:43,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:49:43,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135743792] [2022-10-16 02:49:43,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:43,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:49:43,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:43,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:49:43,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:43,318 INFO L87 Difference]: Start difference. First operand 348 states and 553 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 02:49:43,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:43,352 INFO L93 Difference]: Finished difference Result 610 states and 970 transitions. [2022-10-16 02:49:43,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:49:43,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-10-16 02:49:43,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:43,356 INFO L225 Difference]: With dead ends: 610 [2022-10-16 02:49:43,357 INFO L226 Difference]: Without dead ends: 610 [2022-10-16 02:49:43,357 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 02:49:43,362 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 111 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:43,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 396 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:43,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-10-16 02:49:43,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 604. [2022-10-16 02:49:43,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 603 states have (on average 1.6003316749585406) internal successors, (965), 603 states have internal predecessors, (965), 0 states have call successors, (0), 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 02:49:43,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 965 transitions. [2022-10-16 02:49:43,412 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 965 transitions. Word has length 64 [2022-10-16 02:49:43,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:43,415 INFO L495 AbstractCegarLoop]: Abstraction has 604 states and 965 transitions. [2022-10-16 02:49:43,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 02:49:43,415 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 965 transitions. [2022-10-16 02:49:43,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-16 02:49:43,425 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:43,426 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] [2022-10-16 02:49:43,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 02:49:43,428 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:43,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:43,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1382576374, now seen corresponding path program 1 times [2022-10-16 02:49:43,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:43,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490512746] [2022-10-16 02:49:43,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:43,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:43,659 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 02:49:43,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:43,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490512746] [2022-10-16 02:49:43,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490512746] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:43,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:43,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:49:43,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191066067] [2022-10-16 02:49:43,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:43,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:49:43,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:43,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:49:43,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:43,664 INFO L87 Difference]: Start difference. First operand 604 states and 965 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 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 02:49:43,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:43,820 INFO L93 Difference]: Finished difference Result 2066 states and 3356 transitions. [2022-10-16 02:49:43,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:49:43,821 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-10-16 02:49:43,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:43,836 INFO L225 Difference]: With dead ends: 2066 [2022-10-16 02:49:43,836 INFO L226 Difference]: Without dead ends: 2066 [2022-10-16 02:49:43,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:49:43,841 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 936 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:43,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [936 Valid, 1264 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:49:43,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2066 states. [2022-10-16 02:49:43,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2066 to 1086. [2022-10-16 02:49:43,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 1085 states have (on average 1.6110599078341015) internal successors, (1748), 1085 states have internal predecessors, (1748), 0 states have call successors, (0), 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 02:49:43,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1748 transitions. [2022-10-16 02:49:43,888 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1748 transitions. Word has length 66 [2022-10-16 02:49:43,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:43,888 INFO L495 AbstractCegarLoop]: Abstraction has 1086 states and 1748 transitions. [2022-10-16 02:49:43,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 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 02:49:43,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1748 transitions. [2022-10-16 02:49:43,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-16 02:49:43,890 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:43,891 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] [2022-10-16 02:49:43,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 02:49:43,891 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:43,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:43,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1833027237, now seen corresponding path program 1 times [2022-10-16 02:49:43,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:43,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026921814] [2022-10-16 02:49:43,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:43,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:43,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:44,037 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 02:49:44,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:44,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026921814] [2022-10-16 02:49:44,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026921814] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:44,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:44,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:49:44,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815072284] [2022-10-16 02:49:44,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:44,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:49:44,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:44,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:49:44,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:49:44,040 INFO L87 Difference]: Start difference. First operand 1086 states and 1748 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 02:49:44,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:44,117 INFO L93 Difference]: Finished difference Result 2144 states and 3490 transitions. [2022-10-16 02:49:44,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:49:44,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2022-10-16 02:49:44,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:44,130 INFO L225 Difference]: With dead ends: 2144 [2022-10-16 02:49:44,130 INFO L226 Difference]: Without dead ends: 2144 [2022-10-16 02:49:44,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:44,132 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 411 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:44,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 707 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:44,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2144 states. [2022-10-16 02:49:44,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2144 to 1606. [2022-10-16 02:49:44,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.618068535825545) internal successors, (2597), 1605 states have internal predecessors, (2597), 0 states have call successors, (0), 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 02:49:44,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 2597 transitions. [2022-10-16 02:49:44,188 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 2597 transitions. Word has length 67 [2022-10-16 02:49:44,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:44,189 INFO L495 AbstractCegarLoop]: Abstraction has 1606 states and 2597 transitions. [2022-10-16 02:49:44,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 02:49:44,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 2597 transitions. [2022-10-16 02:49:44,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-16 02:49:44,191 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:44,191 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] [2022-10-16 02:49:44,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 02:49:44,192 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:44,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:44,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1551869537, now seen corresponding path program 1 times [2022-10-16 02:49:44,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:44,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059445051] [2022-10-16 02:49:44,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:44,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:44,318 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 02:49:44,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:44,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059445051] [2022-10-16 02:49:44,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059445051] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:44,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:44,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:49:44,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021779117] [2022-10-16 02:49:44,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:44,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:49:44,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:44,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:49:44,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:49:44,322 INFO L87 Difference]: Start difference. First operand 1606 states and 2597 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 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 02:49:44,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:44,408 INFO L93 Difference]: Finished difference Result 3118 states and 5059 transitions. [2022-10-16 02:49:44,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:49:44,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-10-16 02:49:44,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:44,424 INFO L225 Difference]: With dead ends: 3118 [2022-10-16 02:49:44,425 INFO L226 Difference]: Without dead ends: 3118 [2022-10-16 02:49:44,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:44,426 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 411 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:44,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 706 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:49:44,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3118 states. [2022-10-16 02:49:44,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3118 to 2350. [2022-10-16 02:49:44,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2350 states, 2349 states have (on average 1.6164325244785014) internal successors, (3797), 2349 states have internal predecessors, (3797), 0 states have call successors, (0), 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 02:49:44,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2350 states to 2350 states and 3797 transitions. [2022-10-16 02:49:44,507 INFO L78 Accepts]: Start accepts. Automaton has 2350 states and 3797 transitions. Word has length 68 [2022-10-16 02:49:44,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:44,508 INFO L495 AbstractCegarLoop]: Abstraction has 2350 states and 3797 transitions. [2022-10-16 02:49:44,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 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 02:49:44,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2350 states and 3797 transitions. [2022-10-16 02:49:44,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-16 02:49:44,510 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:44,510 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] [2022-10-16 02:49:44,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 02:49:44,511 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:44,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:44,512 INFO L85 PathProgramCache]: Analyzing trace with hash -721508526, now seen corresponding path program 1 times [2022-10-16 02:49:44,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:44,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540106054] [2022-10-16 02:49:44,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:44,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:44,628 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 02:49:44,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:44,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540106054] [2022-10-16 02:49:44,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540106054] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:44,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:44,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:49:44,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642530554] [2022-10-16 02:49:44,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:44,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:49:44,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:44,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:49:44,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:49:44,631 INFO L87 Difference]: Start difference. First operand 2350 states and 3797 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 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 02:49:44,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:44,720 INFO L93 Difference]: Finished difference Result 4494 states and 7279 transitions. [2022-10-16 02:49:44,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:49:44,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2022-10-16 02:49:44,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:44,743 INFO L225 Difference]: With dead ends: 4494 [2022-10-16 02:49:44,744 INFO L226 Difference]: Without dead ends: 4494 [2022-10-16 02:49:44,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:44,748 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 409 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:44,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 700 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:44,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4494 states. [2022-10-16 02:49:44,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4494 to 3406. [2022-10-16 02:49:44,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3406 states, 3405 states have (on average 1.6138032305433188) internal successors, (5495), 3405 states have internal predecessors, (5495), 0 states have call successors, (0), 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 02:49:44,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 5495 transitions. [2022-10-16 02:49:44,858 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 5495 transitions. Word has length 69 [2022-10-16 02:49:44,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:44,859 INFO L495 AbstractCegarLoop]: Abstraction has 3406 states and 5495 transitions. [2022-10-16 02:49:44,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 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 02:49:44,859 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 5495 transitions. [2022-10-16 02:49:44,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-10-16 02:49:44,867 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:44,867 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 02:49:44,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 02:49:44,868 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:44,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:44,868 INFO L85 PathProgramCache]: Analyzing trace with hash -612676452, now seen corresponding path program 1 times [2022-10-16 02:49:44,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:44,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164273932] [2022-10-16 02:49:44,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:44,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:44,974 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 02:49:44,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:44,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164273932] [2022-10-16 02:49:44,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164273932] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:44,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:44,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:49:44,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799054465] [2022-10-16 02:49:44,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:44,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:49:44,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:44,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:49:44,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:44,977 INFO L87 Difference]: Start difference. First operand 3406 states and 5495 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 02:49:45,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:45,036 INFO L93 Difference]: Finished difference Result 5334 states and 8535 transitions. [2022-10-16 02:49:45,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:49:45,037 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 02:49:45,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:45,064 INFO L225 Difference]: With dead ends: 5334 [2022-10-16 02:49:45,064 INFO L226 Difference]: Without dead ends: 5334 [2022-10-16 02:49:45,064 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 02:49:45,065 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 110 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 431 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 02:49:45,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 431 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:45,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5334 states. [2022-10-16 02:49:45,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5334 to 5332. [2022-10-16 02:49:45,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5332 states, 5331 states have (on average 1.6008253610954792) internal successors, (8534), 5331 states have internal predecessors, (8534), 0 states have call successors, (0), 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 02:49:45,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5332 states to 5332 states and 8534 transitions. [2022-10-16 02:49:45,222 INFO L78 Accepts]: Start accepts. Automaton has 5332 states and 8534 transitions. Word has length 70 [2022-10-16 02:49:45,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:45,223 INFO L495 AbstractCegarLoop]: Abstraction has 5332 states and 8534 transitions. [2022-10-16 02:49:45,223 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 02:49:45,223 INFO L276 IsEmpty]: Start isEmpty. Operand 5332 states and 8534 transitions. [2022-10-16 02:49:45,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-10-16 02:49:45,225 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:45,225 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 02:49:45,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 02:49:45,226 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:45,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:45,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1846404324, now seen corresponding path program 1 times [2022-10-16 02:49:45,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:45,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191735277] [2022-10-16 02:49:45,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:45,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:45,308 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 02:49:45,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:45,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191735277] [2022-10-16 02:49:45,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191735277] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:45,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:45,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:49:45,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816580648] [2022-10-16 02:49:45,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:45,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:49:45,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:45,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:49:45,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:45,310 INFO L87 Difference]: Start difference. First operand 5332 states and 8534 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 02:49:45,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:45,366 INFO L93 Difference]: Finished difference Result 7898 states and 12573 transitions. [2022-10-16 02:49:45,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:49:45,367 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 02:49:45,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:45,407 INFO L225 Difference]: With dead ends: 7898 [2022-10-16 02:49:45,408 INFO L226 Difference]: Without dead ends: 7898 [2022-10-16 02:49:45,408 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 02:49:45,409 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 116 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 465 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 02:49:45,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 465 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:45,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7898 states. [2022-10-16 02:49:45,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7898 to 7896. [2022-10-16 02:49:45,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7896 states, 7895 states have (on average 1.592400253324889) internal successors, (12572), 7895 states have internal predecessors, (12572), 0 states have call successors, (0), 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 02:49:45,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7896 states to 7896 states and 12572 transitions. [2022-10-16 02:49:45,618 INFO L78 Accepts]: Start accepts. Automaton has 7896 states and 12572 transitions. Word has length 70 [2022-10-16 02:49:45,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:45,618 INFO L495 AbstractCegarLoop]: Abstraction has 7896 states and 12572 transitions. [2022-10-16 02:49:45,619 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 02:49:45,619 INFO L276 IsEmpty]: Start isEmpty. Operand 7896 states and 12572 transitions. [2022-10-16 02:49:45,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-10-16 02:49:45,620 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:45,620 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 02:49:45,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 02:49:45,621 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:45,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:45,621 INFO L85 PathProgramCache]: Analyzing trace with hash -827061860, now seen corresponding path program 1 times [2022-10-16 02:49:45,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:45,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392740700] [2022-10-16 02:49:45,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:45,622 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 02:49:45,682 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 02:49:45,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:45,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392740700] [2022-10-16 02:49:45,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392740700] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:45,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:45,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:49:45,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027171603] [2022-10-16 02:49:45,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:45,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:49:45,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:45,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:49:45,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:45,684 INFO L87 Difference]: Start difference. First operand 7896 states and 12572 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 02:49:45,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:45,787 INFO L93 Difference]: Finished difference Result 11757 states and 18661 transitions. [2022-10-16 02:49:45,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:49:45,788 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 02:49:45,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:45,818 INFO L225 Difference]: With dead ends: 11757 [2022-10-16 02:49:45,818 INFO L226 Difference]: Without dead ends: 11757 [2022-10-16 02:49:45,818 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 02:49:45,819 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 122 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 491 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 02:49:45,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 491 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:45,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11757 states. [2022-10-16 02:49:46,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11757 to 11755. [2022-10-16 02:49:46,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11755 states, 11754 states have (on average 1.5875446656457377) internal successors, (18660), 11754 states have internal predecessors, (18660), 0 states have call successors, (0), 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 02:49:46,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11755 states to 11755 states and 18660 transitions. [2022-10-16 02:49:46,101 INFO L78 Accepts]: Start accepts. Automaton has 11755 states and 18660 transitions. Word has length 70 [2022-10-16 02:49:46,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:46,102 INFO L495 AbstractCegarLoop]: Abstraction has 11755 states and 18660 transitions. [2022-10-16 02:49:46,103 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 02:49:46,103 INFO L276 IsEmpty]: Start isEmpty. Operand 11755 states and 18660 transitions. [2022-10-16 02:49:46,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 02:49:46,104 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:46,104 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] [2022-10-16 02:49:46,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 02:49:46,105 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:46,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:46,106 INFO L85 PathProgramCache]: Analyzing trace with hash 287488266, now seen corresponding path program 1 times [2022-10-16 02:49:46,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:46,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633825331] [2022-10-16 02:49:46,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:46,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:46,323 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 02:49:46,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:46,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633825331] [2022-10-16 02:49:46,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633825331] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:46,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:46,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:49:46,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691815015] [2022-10-16 02:49:46,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:46,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:49:46,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:46,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:49:46,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:46,327 INFO L87 Difference]: Start difference. First operand 11755 states and 18660 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 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 02:49:46,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:46,491 INFO L93 Difference]: Finished difference Result 11757 states and 18536 transitions. [2022-10-16 02:49:46,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:49:46,491 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-10-16 02:49:46,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:46,520 INFO L225 Difference]: With dead ends: 11757 [2022-10-16 02:49:46,520 INFO L226 Difference]: Without dead ends: 11757 [2022-10-16 02:49:46,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:49:46,521 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 301 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:46,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 573 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:49:46,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11757 states. [2022-10-16 02:49:46,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11757 to 11755. [2022-10-16 02:49:46,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11755 states, 11754 states have (on average 1.576909988089161) internal successors, (18535), 11754 states have internal predecessors, (18535), 0 states have call successors, (0), 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 02:49:46,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11755 states to 11755 states and 18535 transitions. [2022-10-16 02:49:46,763 INFO L78 Accepts]: Start accepts. Automaton has 11755 states and 18535 transitions. Word has length 71 [2022-10-16 02:49:46,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:46,763 INFO L495 AbstractCegarLoop]: Abstraction has 11755 states and 18535 transitions. [2022-10-16 02:49:46,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 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 02:49:46,764 INFO L276 IsEmpty]: Start isEmpty. Operand 11755 states and 18535 transitions. [2022-10-16 02:49:46,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 02:49:46,765 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:46,765 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] [2022-10-16 02:49:46,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 02:49:46,765 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:46,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:46,766 INFO L85 PathProgramCache]: Analyzing trace with hash 2101127620, now seen corresponding path program 1 times [2022-10-16 02:49:46,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:46,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590774004] [2022-10-16 02:49:46,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:46,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:46,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:47,007 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 02:49:47,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:47,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590774004] [2022-10-16 02:49:47,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590774004] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:47,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:47,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:49:47,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031026304] [2022-10-16 02:49:47,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:47,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:49:47,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:47,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:49:47,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:47,010 INFO L87 Difference]: Start difference. First operand 11755 states and 18535 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 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 02:49:47,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:47,177 INFO L93 Difference]: Finished difference Result 22001 states and 34431 transitions. [2022-10-16 02:49:47,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:49:47,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2022-10-16 02:49:47,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:47,239 INFO L225 Difference]: With dead ends: 22001 [2022-10-16 02:49:47,239 INFO L226 Difference]: Without dead ends: 22001 [2022-10-16 02:49:47,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:49:47,240 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 187 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:47,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 763 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:49:47,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22001 states. [2022-10-16 02:49:47,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22001 to 21999. [2022-10-16 02:49:47,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21999 states, 21998 states have (on average 1.565142285662333) internal successors, (34430), 21998 states have internal predecessors, (34430), 0 states have call successors, (0), 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 02:49:47,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21999 states to 21999 states and 34430 transitions. [2022-10-16 02:49:47,786 INFO L78 Accepts]: Start accepts. Automaton has 21999 states and 34430 transitions. Word has length 74 [2022-10-16 02:49:47,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:47,786 INFO L495 AbstractCegarLoop]: Abstraction has 21999 states and 34430 transitions. [2022-10-16 02:49:47,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 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 02:49:47,787 INFO L276 IsEmpty]: Start isEmpty. Operand 21999 states and 34430 transitions. [2022-10-16 02:49:47,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-16 02:49:47,788 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:47,789 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] [2022-10-16 02:49:47,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 02:49:47,789 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:47,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:47,790 INFO L85 PathProgramCache]: Analyzing trace with hash 281871155, now seen corresponding path program 1 times [2022-10-16 02:49:47,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:47,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897455275] [2022-10-16 02:49:47,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:47,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:47,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:48,078 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 02:49:48,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:48,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897455275] [2022-10-16 02:49:48,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897455275] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:48,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:48,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:49:48,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859955413] [2022-10-16 02:49:48,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:48,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:49:48,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:48,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:49:48,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:48,081 INFO L87 Difference]: Start difference. First operand 21999 states and 34430 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 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 02:49:48,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:48,490 INFO L93 Difference]: Finished difference Result 42904 states and 66075 transitions. [2022-10-16 02:49:48,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:49:48,491 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-10-16 02:49:48,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:48,733 INFO L225 Difference]: With dead ends: 42904 [2022-10-16 02:49:48,733 INFO L226 Difference]: Without dead ends: 42904 [2022-10-16 02:49:48,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:49:48,734 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 368 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:48,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 926 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:48,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42904 states. [2022-10-16 02:49:49,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42904 to 23085. [2022-10-16 02:49:49,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23085 states, 23084 states have (on average 1.5381649627447582) internal successors, (35507), 23084 states have internal predecessors, (35507), 0 states have call successors, (0), 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 02:49:49,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23085 states to 23085 states and 35507 transitions. [2022-10-16 02:49:49,293 INFO L78 Accepts]: Start accepts. Automaton has 23085 states and 35507 transitions. Word has length 75 [2022-10-16 02:49:49,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:49,294 INFO L495 AbstractCegarLoop]: Abstraction has 23085 states and 35507 transitions. [2022-10-16 02:49:49,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 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 02:49:49,294 INFO L276 IsEmpty]: Start isEmpty. Operand 23085 states and 35507 transitions. [2022-10-16 02:49:49,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 02:49:49,297 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:49,297 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 02:49:49,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 02:49:49,298 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:49,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:49,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1623964746, now seen corresponding path program 1 times [2022-10-16 02:49:49,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:49,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224927515] [2022-10-16 02:49:49,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:49,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:49,645 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 02:49:49,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:49,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224927515] [2022-10-16 02:49:49,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224927515] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:49,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:49,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:49:49,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885778236] [2022-10-16 02:49:49,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:49,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:49:49,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:49,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:49:49,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:49,648 INFO L87 Difference]: Start difference. First operand 23085 states and 35507 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 02:49:49,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:49,941 INFO L93 Difference]: Finished difference Result 45483 states and 69964 transitions. [2022-10-16 02:49:49,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:49:49,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 103 [2022-10-16 02:49:49,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:50,081 INFO L225 Difference]: With dead ends: 45483 [2022-10-16 02:49:50,082 INFO L226 Difference]: Without dead ends: 45483 [2022-10-16 02:49:50,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:49:50,083 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 521 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:50,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 974 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:49:50,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45483 states. [2022-10-16 02:49:50,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45483 to 35477. [2022-10-16 02:49:50,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35477 states, 35476 states have (on average 1.5366163039801557) internal successors, (54513), 35476 states have internal predecessors, (54513), 0 states have call successors, (0), 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 02:49:50,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35477 states to 35477 states and 54513 transitions. [2022-10-16 02:49:50,996 INFO L78 Accepts]: Start accepts. Automaton has 35477 states and 54513 transitions. Word has length 103 [2022-10-16 02:49:50,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:50,996 INFO L495 AbstractCegarLoop]: Abstraction has 35477 states and 54513 transitions. [2022-10-16 02:49:50,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 02:49:50,997 INFO L276 IsEmpty]: Start isEmpty. Operand 35477 states and 54513 transitions. [2022-10-16 02:49:50,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 02:49:51,000 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:51,000 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 02:49:51,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 02:49:51,001 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:51,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:51,002 INFO L85 PathProgramCache]: Analyzing trace with hash 390236874, now seen corresponding path program 1 times [2022-10-16 02:49:51,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:51,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698678497] [2022-10-16 02:49:51,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:51,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:51,480 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 02:49:51,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:51,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698678497] [2022-10-16 02:49:51,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698678497] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:51,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:51,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:49:51,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079652308] [2022-10-16 02:49:51,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:51,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:49:51,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:51,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:49:51,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:51,483 INFO L87 Difference]: Start difference. First operand 35477 states and 54513 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:51,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:51,935 INFO L93 Difference]: Finished difference Result 49859 states and 76724 transitions. [2022-10-16 02:49:51,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:49:51,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-10-16 02:49:51,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:52,080 INFO L225 Difference]: With dead ends: 49859 [2022-10-16 02:49:52,080 INFO L226 Difference]: Without dead ends: 49859 [2022-10-16 02:49:52,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:49:52,081 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 520 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:52,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 1031 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:49:52,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49859 states. [2022-10-16 02:49:52,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49859 to 48061. [2022-10-16 02:49:53,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48061 states, 48060 states have (on average 1.5370994590095715) internal successors, (73873), 48060 states have internal predecessors, (73873), 0 states have call successors, (0), 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 02:49:53,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48061 states to 48061 states and 73873 transitions. [2022-10-16 02:49:53,144 INFO L78 Accepts]: Start accepts. Automaton has 48061 states and 73873 transitions. Word has length 103 [2022-10-16 02:49:53,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:53,145 INFO L495 AbstractCegarLoop]: Abstraction has 48061 states and 73873 transitions. [2022-10-16 02:49:53,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:53,152 INFO L276 IsEmpty]: Start isEmpty. Operand 48061 states and 73873 transitions. [2022-10-16 02:49:53,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 02:49:53,159 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:53,160 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 02:49:53,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 02:49:53,160 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:53,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:53,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1409579338, now seen corresponding path program 1 times [2022-10-16 02:49:53,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:53,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950551919] [2022-10-16 02:49:53,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:53,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:53,675 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:49:53,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:53,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950551919] [2022-10-16 02:49:53,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950551919] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:53,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:53,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:49:53,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774460634] [2022-10-16 02:49:53,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:53,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:49:53,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:53,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:49:53,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:53,678 INFO L87 Difference]: Start difference. First operand 48061 states and 73873 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 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 02:49:53,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:53,990 INFO L93 Difference]: Finished difference Result 57027 states and 87872 transitions. [2022-10-16 02:49:53,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:49:53,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 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 103 [2022-10-16 02:49:53,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:54,153 INFO L225 Difference]: With dead ends: 57027 [2022-10-16 02:49:54,154 INFO L226 Difference]: Without dead ends: 57027 [2022-10-16 02:49:54,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:49:54,155 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 528 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:54,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 941 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:49:54,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57027 states. [2022-10-16 02:49:55,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57027 to 55229. [2022-10-16 02:49:55,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55229 states, 55228 states have (on average 1.5394546244658507) internal successors, (85021), 55228 states have internal predecessors, (85021), 0 states have call successors, (0), 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 02:49:55,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55229 states to 55229 states and 85021 transitions. [2022-10-16 02:49:55,417 INFO L78 Accepts]: Start accepts. Automaton has 55229 states and 85021 transitions. Word has length 103 [2022-10-16 02:49:55,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:55,418 INFO L495 AbstractCegarLoop]: Abstraction has 55229 states and 85021 transitions. [2022-10-16 02:49:55,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 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 02:49:55,418 INFO L276 IsEmpty]: Start isEmpty. Operand 55229 states and 85021 transitions. [2022-10-16 02:49:55,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-16 02:49:55,421 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:55,421 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] [2022-10-16 02:49:55,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 02:49:55,422 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:55,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:55,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1175546085, now seen corresponding path program 1 times [2022-10-16 02:49:55,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:55,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004453743] [2022-10-16 02:49:55,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:55,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:55,568 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:49:55,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:55,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004453743] [2022-10-16 02:49:55,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004453743] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:55,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:55,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:49:55,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778141246] [2022-10-16 02:49:55,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:55,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:49:55,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:55,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:49:55,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:49:55,573 INFO L87 Difference]: Start difference. First operand 55229 states and 85021 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 02:49:56,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:56,223 INFO L93 Difference]: Finished difference Result 71722 states and 110479 transitions. [2022-10-16 02:49:56,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:49:56,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 104 [2022-10-16 02:49:56,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:56,373 INFO L225 Difference]: With dead ends: 71722 [2022-10-16 02:49:56,373 INFO L226 Difference]: Without dead ends: 71722 [2022-10-16 02:49:56,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:49:56,374 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 224 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:56,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 732 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 02:49:56,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71722 states. [2022-10-16 02:49:58,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71722 to 69926. [2022-10-16 02:49:58,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69926 states, 69925 states have (on average 1.5396639256346085) internal successors, (107661), 69925 states have internal predecessors, (107661), 0 states have call successors, (0), 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 02:49:58,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69926 states to 69926 states and 107661 transitions. [2022-10-16 02:49:58,202 INFO L78 Accepts]: Start accepts. Automaton has 69926 states and 107661 transitions. Word has length 104 [2022-10-16 02:49:58,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:58,203 INFO L495 AbstractCegarLoop]: Abstraction has 69926 states and 107661 transitions. [2022-10-16 02:49:58,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 02:49:58,203 INFO L276 IsEmpty]: Start isEmpty. Operand 69926 states and 107661 transitions. [2022-10-16 02:49:58,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-16 02:49:58,210 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:58,210 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] [2022-10-16 02:49:58,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 02:49:58,211 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:58,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:58,212 INFO L85 PathProgramCache]: Analyzing trace with hash -752844259, now seen corresponding path program 1 times [2022-10-16 02:49:58,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:58,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005982604] [2022-10-16 02:49:58,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:58,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:58,309 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:49:58,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:58,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005982604] [2022-10-16 02:49:58,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005982604] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:58,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:58,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:49:58,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232671021] [2022-10-16 02:49:58,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:58,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:49:58,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:58,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:49:58,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:58,312 INFO L87 Difference]: Start difference. First operand 69926 states and 107661 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 02:49:59,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:59,259 INFO L93 Difference]: Finished difference Result 118200 states and 181806 transitions. [2022-10-16 02:49:59,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:49:59,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 104 [2022-10-16 02:49:59,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:59,451 INFO L225 Difference]: With dead ends: 118200 [2022-10-16 02:49:59,451 INFO L226 Difference]: Without dead ends: 118200 [2022-10-16 02:49:59,451 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 02:49:59,452 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 99 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:59,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 388 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:59,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118200 states. [2022-10-16 02:50:01,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118200 to 117922. [2022-10-16 02:50:01,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117922 states, 117921 states have (on average 1.5394119792064178) internal successors, (181529), 117921 states have internal predecessors, (181529), 0 states have call successors, (0), 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 02:50:02,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117922 states to 117922 states and 181529 transitions. [2022-10-16 02:50:02,051 INFO L78 Accepts]: Start accepts. Automaton has 117922 states and 181529 transitions. Word has length 104 [2022-10-16 02:50:02,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:50:02,051 INFO L495 AbstractCegarLoop]: Abstraction has 117922 states and 181529 transitions. [2022-10-16 02:50:02,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 02:50:02,052 INFO L276 IsEmpty]: Start isEmpty. Operand 117922 states and 181529 transitions. [2022-10-16 02:50:02,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-16 02:50:02,061 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:50:02,061 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] [2022-10-16 02:50:02,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 02:50:02,062 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:50:02,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:50:02,063 INFO L85 PathProgramCache]: Analyzing trace with hash 123384353, now seen corresponding path program 1 times [2022-10-16 02:50:02,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:50:02,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632414168] [2022-10-16 02:50:02,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:50:02,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:50:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:50:02,202 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 02:50:02,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:50:02,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632414168] [2022-10-16 02:50:02,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632414168] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:50:02,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:50:02,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:50:02,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915750379] [2022-10-16 02:50:02,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:50:02,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:50:02,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:50:02,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:50:02,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:50:02,205 INFO L87 Difference]: Start difference. First operand 117922 states and 181529 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 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 02:50:03,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:50:03,423 INFO L93 Difference]: Finished difference Result 146375 states and 225337 transitions. [2022-10-16 02:50:03,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:50:03,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 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 02:50:03,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:50:03,908 INFO L225 Difference]: With dead ends: 146375 [2022-10-16 02:50:03,908 INFO L226 Difference]: Without dead ends: 146375 [2022-10-16 02:50:03,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:50:03,910 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 233 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:50:03,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 670 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:50:04,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146375 states. [2022-10-16 02:50:06,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146375 to 139219. [2022-10-16 02:50:06,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139219 states, 139218 states have (on average 1.538472036661926) internal successors, (214183), 139218 states have internal predecessors, (214183), 0 states have call successors, (0), 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 02:50:06,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139219 states to 139219 states and 214183 transitions. [2022-10-16 02:50:06,892 INFO L78 Accepts]: Start accepts. Automaton has 139219 states and 214183 transitions. Word has length 105 [2022-10-16 02:50:06,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:50:06,893 INFO L495 AbstractCegarLoop]: Abstraction has 139219 states and 214183 transitions. [2022-10-16 02:50:06,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 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 02:50:06,893 INFO L276 IsEmpty]: Start isEmpty. Operand 139219 states and 214183 transitions. [2022-10-16 02:50:06,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-16 02:50:06,904 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:50:06,904 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] [2022-10-16 02:50:06,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 02:50:06,905 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:50:06,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:50:06,906 INFO L85 PathProgramCache]: Analyzing trace with hash -897684001, now seen corresponding path program 1 times [2022-10-16 02:50:06,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:50:06,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800347203] [2022-10-16 02:50:06,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:50:06,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:50:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:50:07,017 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 02:50:07,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:50:07,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800347203] [2022-10-16 02:50:07,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800347203] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:50:07,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:50:07,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:50:07,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142874809] [2022-10-16 02:50:07,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:50:07,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:50:07,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:50:07,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:50:07,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:50:07,020 INFO L87 Difference]: Start difference. First operand 139219 states and 214183 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 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 02:50:08,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:50:08,559 INFO L93 Difference]: Finished difference Result 228931 states and 351512 transitions. [2022-10-16 02:50:08,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:50:08,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 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 02:50:08,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:50:08,971 INFO L225 Difference]: With dead ends: 228931 [2022-10-16 02:50:08,972 INFO L226 Difference]: Without dead ends: 228931 [2022-10-16 02:50:08,972 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 02:50:08,973 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 99 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:50:08,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 387 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:50:09,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228931 states. [2022-10-16 02:50:12,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228931 to 228401. [2022-10-16 02:50:13,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228401 states, 228400 states have (on average 1.5367031523642731) internal successors, (350983), 228400 states have internal predecessors, (350983), 0 states have call successors, (0), 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 02:50:13,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228401 states to 228401 states and 350983 transitions. [2022-10-16 02:50:13,941 INFO L78 Accepts]: Start accepts. Automaton has 228401 states and 350983 transitions. Word has length 105 [2022-10-16 02:50:13,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:50:13,941 INFO L495 AbstractCegarLoop]: Abstraction has 228401 states and 350983 transitions. [2022-10-16 02:50:13,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 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 02:50:13,942 INFO L276 IsEmpty]: Start isEmpty. Operand 228401 states and 350983 transitions. [2022-10-16 02:50:13,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-16 02:50:13,946 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:50:13,946 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] [2022-10-16 02:50:13,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-16 02:50:13,947 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:50:13,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:50:13,948 INFO L85 PathProgramCache]: Analyzing trace with hash -694815216, now seen corresponding path program 1 times [2022-10-16 02:50:13,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:50:13,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494616198] [2022-10-16 02:50:13,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:50:13,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:50:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:50:14,031 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:50:14,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:50:14,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494616198] [2022-10-16 02:50:14,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494616198] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:50:14,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:50:14,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:50:14,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039035155] [2022-10-16 02:50:14,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:50:14,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:50:14,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:50:14,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:50:14,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:50:14,034 INFO L87 Difference]: Start difference. First operand 228401 states and 350983 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 02:50:16,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:50:16,516 INFO L93 Difference]: Finished difference Result 447709 states and 681880 transitions. [2022-10-16 02:50:16,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:50:16,517 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 02:50:16,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:50:17,520 INFO L225 Difference]: With dead ends: 447709 [2022-10-16 02:50:17,520 INFO L226 Difference]: Without dead ends: 447709 [2022-10-16 02:50:17,520 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 02:50:17,521 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 160 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:50:17,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 508 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:50:17,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447709 states. [2022-10-16 02:50:24,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447709 to 447707. [2022-10-16 02:50:26,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447707 states, 447706 states have (on average 1.5230508414003834) internal successors, (681879), 447706 states have internal predecessors, (681879), 0 states have call successors, (0), 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 02:50:28,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447707 states to 447707 states and 681879 transitions. [2022-10-16 02:50:28,327 INFO L78 Accepts]: Start accepts. Automaton has 447707 states and 681879 transitions. Word has length 105 [2022-10-16 02:50:28,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:50:28,328 INFO L495 AbstractCegarLoop]: Abstraction has 447707 states and 681879 transitions. [2022-10-16 02:50:28,328 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 02:50:28,328 INFO L276 IsEmpty]: Start isEmpty. Operand 447707 states and 681879 transitions. [2022-10-16 02:50:28,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-16 02:50:28,354 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:50:28,354 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] [2022-10-16 02:50:28,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-16 02:50:28,355 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:50:28,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:50:28,355 INFO L85 PathProgramCache]: Analyzing trace with hash 237007466, now seen corresponding path program 1 times [2022-10-16 02:50:28,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:50:28,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335012986] [2022-10-16 02:50:28,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:50:28,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:50:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:50:28,450 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:50:28,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:50:28,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335012986] [2022-10-16 02:50:28,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335012986] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:50:28,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:50:28,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:50:28,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520198326] [2022-10-16 02:50:28,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:50:28,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:50:28,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:50:28,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:50:28,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:50:28,455 INFO L87 Difference]: Start difference. First operand 447707 states and 681879 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 02:50:32,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:50:32,886 INFO L93 Difference]: Finished difference Result 878281 states and 1325692 transitions. [2022-10-16 02:50:32,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:50:32,887 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 02:50:32,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:50:36,284 INFO L225 Difference]: With dead ends: 878281 [2022-10-16 02:50:36,284 INFO L226 Difference]: Without dead ends: 878281 [2022-10-16 02:50:36,285 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 02:50:36,286 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 141 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:50:36,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 476 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:50:37,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878281 states. [2022-10-16 02:50:51,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878281 to 878279. [2022-10-16 02:50:53,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878279 states, 878278 states have (on average 1.5094207073386787) internal successors, (1325691), 878278 states have internal predecessors, (1325691), 0 states have call successors, (0), 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 02:50:59,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878279 states to 878279 states and 1325691 transitions. [2022-10-16 02:50:59,339 INFO L78 Accepts]: Start accepts. Automaton has 878279 states and 1325691 transitions. Word has length 105 [2022-10-16 02:50:59,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:50:59,339 INFO L495 AbstractCegarLoop]: Abstraction has 878279 states and 1325691 transitions. [2022-10-16 02:50:59,339 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 02:50:59,339 INFO L276 IsEmpty]: Start isEmpty. Operand 878279 states and 1325691 transitions. [2022-10-16 02:50:59,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-10-16 02:50:59,374 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:50:59,375 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:59,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-10-16 02:50:59,375 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:50:59,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:50:59,378 INFO L85 PathProgramCache]: Analyzing trace with hash 598071188, now seen corresponding path program 1 times [2022-10-16 02:50:59,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:50:59,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84761203] [2022-10-16 02:50:59,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:50:59,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:50:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:50:59,478 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 02:50:59,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:50:59,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84761203] [2022-10-16 02:50:59,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84761203] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:50:59,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:50:59,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:50:59,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047528754] [2022-10-16 02:50:59,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:50:59,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:50:59,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:50:59,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:50:59,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:50:59,481 INFO L87 Difference]: Start difference. First operand 878279 states and 1325691 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 02:51:07,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:51:07,865 INFO L93 Difference]: Finished difference Result 1381783 states and 2084528 transitions. [2022-10-16 02:51:07,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:51:07,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 106 [2022-10-16 02:51:07,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:51:13,051 INFO L225 Difference]: With dead ends: 1381783 [2022-10-16 02:51:13,051 INFO L226 Difference]: Without dead ends: 1381783 [2022-10-16 02:51:13,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:51:13,054 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 99 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:51:13,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 388 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:51:14,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381783 states. [2022-10-16 02:51:42,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381783 to 1378985. [2022-10-16 02:51:47,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378985 states, 1378984 states have (on average 1.509612149234509) internal successors, (2081731), 1378984 states have internal predecessors, (2081731), 0 states have call successors, (0), 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 02:51:59,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378985 states to 1378985 states and 2081731 transitions. [2022-10-16 02:51:59,812 INFO L78 Accepts]: Start accepts. Automaton has 1378985 states and 2081731 transitions. Word has length 106 [2022-10-16 02:51:59,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:51:59,812 INFO L495 AbstractCegarLoop]: Abstraction has 1378985 states and 2081731 transitions. [2022-10-16 02:51:59,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 02:51:59,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1378985 states and 2081731 transitions. [2022-10-16 02:51:59,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-10-16 02:51:59,831 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:51:59,831 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:51:59,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-10-16 02:51:59,832 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:51:59,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:51:59,832 INFO L85 PathProgramCache]: Analyzing trace with hash -102993390, now seen corresponding path program 1 times [2022-10-16 02:51:59,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:51:59,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206053692] [2022-10-16 02:51:59,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:51:59,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:51:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:00,051 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 02:52:00,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:00,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206053692] [2022-10-16 02:52:00,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206053692] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:00,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:00,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:52:00,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31668092] [2022-10-16 02:52:00,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:00,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:52:00,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:00,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:52:00,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:52:00,062 INFO L87 Difference]: Start difference. First operand 1378985 states and 2081731 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)