/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.4.3.ufo.BOUNDED-8.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 02:52:20,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 02:52:20,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 02:52:20,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 02:52:20,419 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 02:52:20,468 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 02:52:20,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 02:52:20,469 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 02:52:20,469 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 02:52:20,471 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 02:52:20,471 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 02:52:20,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 02:52:20,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 02:52:20,474 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 02:52:20,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 02:52:20,476 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 02:52:20,476 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 02:52:20,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 02:52:20,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 02:52:20,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 02:52:20,477 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 02:52:20,477 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 02:52:20,477 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 02:52:20,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 02:52:20,478 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 02:52:20,478 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 02:52:20,478 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 02:52:20,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 02:52:20,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 02:52:20,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 02:52:20,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:52:20,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 02:52:20,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 02:52:20,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 02:52:20,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 02:52:20,480 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 02:52:20,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 02:52:20,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 02:52:20,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 02:52:20,902 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 02:52:20,903 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 02:52:20,905 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c [2022-10-16 02:52:20,989 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b7fc776e/cd8594be3d5d4d06b8dd317345016414/FLAG74c824f85 [2022-10-16 02:52:21,792 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 02:52:21,793 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c [2022-10-16 02:52:21,810 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b7fc776e/cd8594be3d5d4d06b8dd317345016414/FLAG74c824f85 [2022-10-16 02:52:22,118 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b7fc776e/cd8594be3d5d4d06b8dd317345016414 [2022-10-16 02:52:22,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 02:52:22,133 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 02:52:22,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 02:52:22,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 02:52:22,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 02:52:22,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:52:22" (1/1) ... [2022-10-16 02:52:22,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ecd4ab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:22, skipping insertion in model container [2022-10-16 02:52:22,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:52:22" (1/1) ... [2022-10-16 02:52:22,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 02:52:22,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 02:52:22,628 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.4.3.ufo.BOUNDED-8.pals.c[30998,31011] [2022-10-16 02:52:22,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:52:22,644 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 02:52:22,821 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.4.3.ufo.BOUNDED-8.pals.c[30998,31011] [2022-10-16 02:52:22,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:52:22,851 INFO L208 MainTranslator]: Completed translation [2022-10-16 02:52:22,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:22 WrapperNode [2022-10-16 02:52:22,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 02:52:22,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 02:52:22,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 02:52:22,855 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 02:52:22,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:22" (1/1) ... [2022-10-16 02:52:22,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:22" (1/1) ... [2022-10-16 02:52:22,986 INFO L138 Inliner]: procedures = 23, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 1007 [2022-10-16 02:52:22,986 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 02:52:22,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 02:52:22,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 02:52:22,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 02:52:22,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:22" (1/1) ... [2022-10-16 02:52:23,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:22" (1/1) ... [2022-10-16 02:52:23,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:22" (1/1) ... [2022-10-16 02:52:23,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:22" (1/1) ... [2022-10-16 02:52:23,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:22" (1/1) ... [2022-10-16 02:52:23,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:22" (1/1) ... [2022-10-16 02:52:23,107 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:22" (1/1) ... [2022-10-16 02:52:23,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:22" (1/1) ... [2022-10-16 02:52:23,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 02:52:23,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 02:52:23,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 02:52:23,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 02:52:23,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:22" (1/1) ... [2022-10-16 02:52:23,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:52:23,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:52:23,177 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 02:52:23,204 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 02:52:23,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 02:52:23,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 02:52:23,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 02:52:23,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 02:52:23,538 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 02:52:23,540 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 02:52:24,775 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 02:52:24,789 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 02:52:24,790 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 02:52:24,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:52:24 BoogieIcfgContainer [2022-10-16 02:52:24,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 02:52:24,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 02:52:24,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 02:52:24,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 02:52:24,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:52:22" (1/3) ... [2022-10-16 02:52:24,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4714d0b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:52:24, skipping insertion in model container [2022-10-16 02:52:24,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:22" (2/3) ... [2022-10-16 02:52:24,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4714d0b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:52:24, skipping insertion in model container [2022-10-16 02:52:24,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:52:24" (3/3) ... [2022-10-16 02:52:24,805 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c [2022-10-16 02:52:24,829 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 02:52:24,829 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 02:52:24,902 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 02:52:24,912 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;@3ea67a47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 02:52:24,912 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 02:52:24,920 INFO L276 IsEmpty]: Start isEmpty. Operand has 325 states, 322 states have (on average 1.81055900621118) internal successors, (583), 324 states have internal predecessors, (583), 0 states have call successors, (0), 0 states 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 02:52:24,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 02:52:24,936 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:24,937 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] [2022-10-16 02:52:24,938 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:24,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:24,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1596459833, now seen corresponding path program 1 times [2022-10-16 02:52:24,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:24,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957329901] [2022-10-16 02:52:24,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:24,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:25,576 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 02:52:25,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:25,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957329901] [2022-10-16 02:52:25,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957329901] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:25,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:25,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 02:52:25,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21027577] [2022-10-16 02:52:25,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:25,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 02:52:25,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:25,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 02:52:25,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 02:52:25,655 INFO L87 Difference]: Start difference. First operand has 325 states, 322 states have (on average 1.81055900621118) internal successors, (583), 324 states have internal predecessors, (583), 0 states have call successors, (0), 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 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 02:52:25,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:25,746 INFO L93 Difference]: Finished difference Result 325 states and 580 transitions. [2022-10-16 02:52:25,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 02:52:25,755 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2022-10-16 02:52:25,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:25,784 INFO L225 Difference]: With dead ends: 325 [2022-10-16 02:52:25,785 INFO L226 Difference]: Without dead ends: 323 [2022-10-16 02:52:25,787 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 02:52:25,794 INFO L413 NwaCegarLoop]: 580 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, 580 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 02:52:25,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:25,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-10-16 02:52:25,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2022-10-16 02:52:25,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 321 states have (on average 1.8006230529595015) internal successors, (578), 322 states have internal predecessors, (578), 0 states have call successors, (0), 0 states 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 02:52:25,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 578 transitions. [2022-10-16 02:52:25,909 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 578 transitions. Word has length 58 [2022-10-16 02:52:25,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:25,910 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 578 transitions. [2022-10-16 02:52:25,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 02:52:25,912 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 578 transitions. [2022-10-16 02:52:25,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 02:52:25,917 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:25,918 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] [2022-10-16 02:52:25,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 02:52:25,919 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:25,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:25,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1598306875, now seen corresponding path program 1 times [2022-10-16 02:52:25,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:25,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106915489] [2022-10-16 02:52:25,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:25,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:26,231 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 02:52:26,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:26,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106915489] [2022-10-16 02:52:26,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106915489] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:26,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:26,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:52:26,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395290246] [2022-10-16 02:52:26,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:26,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:52:26,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:26,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:52:26,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:52:26,237 INFO L87 Difference]: Start difference. First operand 323 states and 578 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 02:52:26,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:26,368 INFO L93 Difference]: Finished difference Result 326 states and 580 transitions. [2022-10-16 02:52:26,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:52:26,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2022-10-16 02:52:26,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:26,377 INFO L225 Difference]: With dead ends: 326 [2022-10-16 02:52:26,377 INFO L226 Difference]: Without dead ends: 323 [2022-10-16 02:52:26,377 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 02:52:26,382 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 3 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2255 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:52:26,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2255 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:52:26,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-10-16 02:52:26,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2022-10-16 02:52:26,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 321 states have (on average 1.6573208722741433) internal successors, (532), 322 states have internal predecessors, (532), 0 states have call successors, (0), 0 states 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 02:52:26,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 532 transitions. [2022-10-16 02:52:26,417 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 532 transitions. Word has length 58 [2022-10-16 02:52:26,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:26,419 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 532 transitions. [2022-10-16 02:52:26,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 02:52:26,419 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 532 transitions. [2022-10-16 02:52:26,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 02:52:26,429 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:26,433 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:52:26,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 02:52:26,434 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:26,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:26,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1986399547, now seen corresponding path program 1 times [2022-10-16 02:52:26,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:26,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049440251] [2022-10-16 02:52:26,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:26,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:26,776 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 02:52:26,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:26,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049440251] [2022-10-16 02:52:26,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049440251] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:26,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:26,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:52:26,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495103461] [2022-10-16 02:52:26,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:26,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:52:26,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:26,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:52:26,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:52:26,781 INFO L87 Difference]: Start difference. First operand 323 states and 532 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 02:52:26,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:26,819 INFO L93 Difference]: Finished difference Result 447 states and 745 transitions. [2022-10-16 02:52:26,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:52:26,823 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 103 [2022-10-16 02:52:26,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:26,832 INFO L225 Difference]: With dead ends: 447 [2022-10-16 02:52:26,832 INFO L226 Difference]: Without dead ends: 447 [2022-10-16 02:52:26,833 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 02:52:26,834 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 212 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:52:26,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 1056 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:26,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-10-16 02:52:26,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 324. [2022-10-16 02:52:26,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 322 states have (on average 1.65527950310559) internal successors, (533), 323 states have internal predecessors, (533), 0 states have call successors, (0), 0 states 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 02:52:26,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 533 transitions. [2022-10-16 02:52:26,860 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 533 transitions. Word has length 103 [2022-10-16 02:52:26,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:26,864 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 533 transitions. [2022-10-16 02:52:26,865 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 02:52:26,865 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 533 transitions. [2022-10-16 02:52:26,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-10-16 02:52:26,870 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:26,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:52:26,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 02:52:26,872 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:26,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:26,875 INFO L85 PathProgramCache]: Analyzing trace with hash 750751880, now seen corresponding path program 1 times [2022-10-16 02:52:26,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:26,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029602333] [2022-10-16 02:52:26,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:26,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:26,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:27,132 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 02:52:27,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:27,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029602333] [2022-10-16 02:52:27,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029602333] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:27,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:27,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:52:27,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677580781] [2022-10-16 02:52:27,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:27,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:52:27,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:27,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:52:27,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:52:27,136 INFO L87 Difference]: Start difference. First operand 324 states and 533 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states 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 02:52:27,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:27,183 INFO L93 Difference]: Finished difference Result 439 states and 722 transitions. [2022-10-16 02:52:27,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:52:27,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2022-10-16 02:52:27,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:27,189 INFO L225 Difference]: With dead ends: 439 [2022-10-16 02:52:27,190 INFO L226 Difference]: Without dead ends: 439 [2022-10-16 02:52:27,190 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 02:52:27,204 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 186 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:52:27,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 1004 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:27,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2022-10-16 02:52:27,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 434. [2022-10-16 02:52:27,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 432 states have (on average 1.6643518518518519) internal successors, (719), 433 states have internal predecessors, (719), 0 states have call successors, (0), 0 states 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 02:52:27,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 719 transitions. [2022-10-16 02:52:27,221 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 719 transitions. Word has length 122 [2022-10-16 02:52:27,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:27,223 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 719 transitions. [2022-10-16 02:52:27,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states 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 02:52:27,223 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 719 transitions. [2022-10-16 02:52:27,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-10-16 02:52:27,232 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:27,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:52:27,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 02:52:27,233 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:27,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:27,234 INFO L85 PathProgramCache]: Analyzing trace with hash -44233893, now seen corresponding path program 1 times [2022-10-16 02:52:27,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:27,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015463230] [2022-10-16 02:52:27,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:27,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:27,475 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 02:52:27,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:27,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015463230] [2022-10-16 02:52:27,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015463230] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:27,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:27,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:52:27,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63948413] [2022-10-16 02:52:27,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:27,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:52:27,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:27,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:52:27,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:52:27,482 INFO L87 Difference]: Start difference. First operand 434 states and 719 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states 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 02:52:27,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:27,514 INFO L93 Difference]: Finished difference Result 651 states and 1083 transitions. [2022-10-16 02:52:27,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:52:27,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2022-10-16 02:52:27,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:27,543 INFO L225 Difference]: With dead ends: 651 [2022-10-16 02:52:27,543 INFO L226 Difference]: Without dead ends: 651 [2022-10-16 02:52:27,544 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 02:52:27,550 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 187 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:52:27,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 1016 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:27,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2022-10-16 02:52:27,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 646. [2022-10-16 02:52:27,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 644 states have (on average 1.6770186335403727) internal successors, (1080), 645 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states 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 02:52:27,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 1080 transitions. [2022-10-16 02:52:27,580 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 1080 transitions. Word has length 125 [2022-10-16 02:52:27,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:27,581 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 1080 transitions. [2022-10-16 02:52:27,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states 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 02:52:27,581 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 1080 transitions. [2022-10-16 02:52:27,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-10-16 02:52:27,584 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:27,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:52:27,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 02:52:27,585 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:27,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:27,586 INFO L85 PathProgramCache]: Analyzing trace with hash 487395088, now seen corresponding path program 1 times [2022-10-16 02:52:27,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:27,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255593211] [2022-10-16 02:52:27,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:27,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:27,785 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 02:52:27,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:27,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255593211] [2022-10-16 02:52:27,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255593211] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:27,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:27,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:52:27,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186065924] [2022-10-16 02:52:27,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:27,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:52:27,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:27,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:52:27,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:52:27,797 INFO L87 Difference]: Start difference. First operand 646 states and 1080 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:52:27,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:27,826 INFO L93 Difference]: Finished difference Result 1055 states and 1767 transitions. [2022-10-16 02:52:27,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:52:27,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2022-10-16 02:52:27,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:27,833 INFO L225 Difference]: With dead ends: 1055 [2022-10-16 02:52:27,834 INFO L226 Difference]: Without dead ends: 1055 [2022-10-16 02:52:27,834 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 02:52:27,835 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 180 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:52:27,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 1017 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:27,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2022-10-16 02:52:27,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 1050. [2022-10-16 02:52:27,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1048 states have (on average 1.683206106870229) internal successors, (1764), 1049 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states 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 02:52:27,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1764 transitions. [2022-10-16 02:52:27,868 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1764 transitions. Word has length 128 [2022-10-16 02:52:27,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:27,869 INFO L495 AbstractCegarLoop]: Abstraction has 1050 states and 1764 transitions. [2022-10-16 02:52:27,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:52:27,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1764 transitions. [2022-10-16 02:52:27,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-10-16 02:52:27,872 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:27,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:52:27,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 02:52:27,873 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:27,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:27,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1255785821, now seen corresponding path program 1 times [2022-10-16 02:52:27,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:27,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752970709] [2022-10-16 02:52:27,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:27,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:28,028 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 02:52:28,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:28,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752970709] [2022-10-16 02:52:28,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752970709] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:28,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:28,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:52:28,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543651838] [2022-10-16 02:52:28,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:28,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:52:28,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:28,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:52:28,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:52:28,031 INFO L87 Difference]: Start difference. First operand 1050 states and 1764 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:52:28,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:28,066 INFO L93 Difference]: Finished difference Result 1823 states and 3059 transitions. [2022-10-16 02:52:28,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:52:28,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2022-10-16 02:52:28,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:28,077 INFO L225 Difference]: With dead ends: 1823 [2022-10-16 02:52:28,078 INFO L226 Difference]: Without dead ends: 1823 [2022-10-16 02:52:28,078 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 02:52:28,079 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 173 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:52:28,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 1018 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:28,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1823 states. [2022-10-16 02:52:28,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1823 to 1818. [2022-10-16 02:52:28,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1818 states, 1816 states have (on average 1.6828193832599119) internal successors, (3056), 1817 states have internal predecessors, (3056), 0 states have call successors, (0), 0 states 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 02:52:28,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1818 states to 1818 states and 3056 transitions. [2022-10-16 02:52:28,139 INFO L78 Accepts]: Start accepts. Automaton has 1818 states and 3056 transitions. Word has length 131 [2022-10-16 02:52:28,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:28,139 INFO L495 AbstractCegarLoop]: Abstraction has 1818 states and 3056 transitions. [2022-10-16 02:52:28,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:52:28,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1818 states and 3056 transitions. [2022-10-16 02:52:28,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-10-16 02:52:28,143 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:28,143 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:28,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 02:52:28,144 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:28,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:28,144 INFO L85 PathProgramCache]: Analyzing trace with hash 871480728, now seen corresponding path program 1 times [2022-10-16 02:52:28,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:28,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714589015] [2022-10-16 02:52:28,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:28,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:28,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:28,441 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 02:52:28,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:28,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714589015] [2022-10-16 02:52:28,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714589015] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:28,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:28,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:52:28,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546653316] [2022-10-16 02:52:28,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:28,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:52:28,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:28,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:52:28,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:52:28,446 INFO L87 Difference]: Start difference. First operand 1818 states and 3056 transitions. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:52:28,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:28,853 INFO L93 Difference]: Finished difference Result 7757 states and 13125 transitions. [2022-10-16 02:52:28,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 02:52:28,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-10-16 02:52:28,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:28,900 INFO L225 Difference]: With dead ends: 7757 [2022-10-16 02:52:28,900 INFO L226 Difference]: Without dead ends: 7757 [2022-10-16 02:52:28,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:52:28,902 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 1709 mSDsluCounter, 3879 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1709 SdHoareTripleChecker+Valid, 4403 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:52:28,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1709 Valid, 4403 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:52:28,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7757 states. [2022-10-16 02:52:29,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7757 to 3326. [2022-10-16 02:52:29,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3326 states, 3324 states have (on average 1.6859205776173285) internal successors, (5604), 3325 states have internal predecessors, (5604), 0 states have call successors, (0), 0 states 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 02:52:29,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3326 states to 3326 states and 5604 transitions. [2022-10-16 02:52:29,127 INFO L78 Accepts]: Start accepts. Automaton has 3326 states and 5604 transitions. Word has length 134 [2022-10-16 02:52:29,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:29,128 INFO L495 AbstractCegarLoop]: Abstraction has 3326 states and 5604 transitions. [2022-10-16 02:52:29,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:52:29,128 INFO L276 IsEmpty]: Start isEmpty. Operand 3326 states and 5604 transitions. [2022-10-16 02:52:29,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-10-16 02:52:29,133 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:29,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:29,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 02:52:29,134 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:29,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:29,134 INFO L85 PathProgramCache]: Analyzing trace with hash -848507773, now seen corresponding path program 1 times [2022-10-16 02:52:29,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:29,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984092130] [2022-10-16 02:52:29,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:29,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:29,338 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 02:52:29,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:29,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984092130] [2022-10-16 02:52:29,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984092130] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:29,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:29,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:52:29,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090425984] [2022-10-16 02:52:29,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:29,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:52:29,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:29,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:52:29,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:52:29,341 INFO L87 Difference]: Start difference. First operand 3326 states and 5604 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:52:29,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:29,459 INFO L93 Difference]: Finished difference Result 6576 states and 11140 transitions. [2022-10-16 02:52:29,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:52:29,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-10-16 02:52:29,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:29,498 INFO L225 Difference]: With dead ends: 6576 [2022-10-16 02:52:29,498 INFO L226 Difference]: Without dead ends: 6576 [2022-10-16 02:52:29,498 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 02:52:29,499 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 627 mSDsluCounter, 1054 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 1580 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 02:52:29,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 1580 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:29,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6576 states. [2022-10-16 02:52:29,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6576 to 4931. [2022-10-16 02:52:29,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4931 states, 4929 states have (on average 1.688780685737472) internal successors, (8324), 4930 states have internal predecessors, (8324), 0 states have call successors, (0), 0 states 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 02:52:29,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4931 states to 4931 states and 8324 transitions. [2022-10-16 02:52:29,674 INFO L78 Accepts]: Start accepts. Automaton has 4931 states and 8324 transitions. Word has length 135 [2022-10-16 02:52:29,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:29,675 INFO L495 AbstractCegarLoop]: Abstraction has 4931 states and 8324 transitions. [2022-10-16 02:52:29,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:52:29,676 INFO L276 IsEmpty]: Start isEmpty. Operand 4931 states and 8324 transitions. [2022-10-16 02:52:29,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-10-16 02:52:29,708 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:29,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:29,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 02:52:29,709 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:29,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:29,710 INFO L85 PathProgramCache]: Analyzing trace with hash 942022462, now seen corresponding path program 1 times [2022-10-16 02:52:29,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:29,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057778957] [2022-10-16 02:52:29,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:29,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:29,845 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 02:52:29,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:29,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057778957] [2022-10-16 02:52:29,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057778957] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:29,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:29,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:52:29,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010063460] [2022-10-16 02:52:29,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:29,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:52:29,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:29,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:52:29,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:52:29,848 INFO L87 Difference]: Start difference. First operand 4931 states and 8324 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states 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 02:52:29,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:29,931 INFO L93 Difference]: Finished difference Result 6963 states and 11716 transitions. [2022-10-16 02:52:29,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:52:29,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2022-10-16 02:52:29,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:29,974 INFO L225 Difference]: With dead ends: 6963 [2022-10-16 02:52:29,974 INFO L226 Difference]: Without dead ends: 6963 [2022-10-16 02:52:29,974 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 02:52:29,976 INFO L413 NwaCegarLoop]: 658 mSDtfsCounter, 188 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 1150 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 02:52:29,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 1150 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:29,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6963 states. [2022-10-16 02:52:30,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6963 to 6958. [2022-10-16 02:52:30,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6958 states, 6956 states have (on average 1.683870040253019) internal successors, (11713), 6957 states have internal predecessors, (11713), 0 states have call successors, (0), 0 states 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 02:52:30,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6958 states to 6958 states and 11713 transitions. [2022-10-16 02:52:30,235 INFO L78 Accepts]: Start accepts. Automaton has 6958 states and 11713 transitions. Word has length 136 [2022-10-16 02:52:30,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:30,236 INFO L495 AbstractCegarLoop]: Abstraction has 6958 states and 11713 transitions. [2022-10-16 02:52:30,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states 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 02:52:30,236 INFO L276 IsEmpty]: Start isEmpty. Operand 6958 states and 11713 transitions. [2022-10-16 02:52:30,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-10-16 02:52:30,240 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:30,240 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:30,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 02:52:30,241 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:30,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:30,242 INFO L85 PathProgramCache]: Analyzing trace with hash -506487182, now seen corresponding path program 1 times [2022-10-16 02:52:30,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:30,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315349973] [2022-10-16 02:52:30,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:30,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:30,401 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 02:52:30,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:30,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315349973] [2022-10-16 02:52:30,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315349973] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:30,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:30,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:52:30,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036313922] [2022-10-16 02:52:30,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:30,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:52:30,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:30,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:52:30,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:52:30,404 INFO L87 Difference]: Start difference. First operand 6958 states and 11713 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states 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 02:52:30,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:30,529 INFO L93 Difference]: Finished difference Result 9787 states and 16418 transitions. [2022-10-16 02:52:30,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:52:30,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2022-10-16 02:52:30,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:30,559 INFO L225 Difference]: With dead ends: 9787 [2022-10-16 02:52:30,559 INFO L226 Difference]: Without dead ends: 9787 [2022-10-16 02:52:30,560 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 02:52:30,561 INFO L413 NwaCegarLoop]: 633 mSDtfsCounter, 181 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1126 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 02:52:30,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1126 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:30,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9787 states. [2022-10-16 02:52:30,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9787 to 9782. [2022-10-16 02:52:30,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9782 states, 9780 states have (on average 1.6784253578732107) internal successors, (16415), 9781 states have internal predecessors, (16415), 0 states have call successors, (0), 0 states 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 02:52:30,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9782 states to 9782 states and 16415 transitions. [2022-10-16 02:52:30,821 INFO L78 Accepts]: Start accepts. Automaton has 9782 states and 16415 transitions. Word has length 136 [2022-10-16 02:52:30,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:30,822 INFO L495 AbstractCegarLoop]: Abstraction has 9782 states and 16415 transitions. [2022-10-16 02:52:30,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states 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 02:52:30,823 INFO L276 IsEmpty]: Start isEmpty. Operand 9782 states and 16415 transitions. [2022-10-16 02:52:30,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-10-16 02:52:30,826 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:30,826 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:30,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 02:52:30,826 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:30,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:30,827 INFO L85 PathProgramCache]: Analyzing trace with hash -2094526018, now seen corresponding path program 1 times [2022-10-16 02:52:30,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:30,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087752546] [2022-10-16 02:52:30,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:30,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:30,968 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 02:52:30,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:30,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087752546] [2022-10-16 02:52:30,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087752546] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:30,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:30,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:52:30,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738727943] [2022-10-16 02:52:30,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:30,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:52:30,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:30,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:52:30,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:52:30,972 INFO L87 Difference]: Start difference. First operand 9782 states and 16415 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states 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 02:52:31,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:31,125 INFO L93 Difference]: Finished difference Result 13649 states and 22818 transitions. [2022-10-16 02:52:31,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:52:31,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2022-10-16 02:52:31,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:31,170 INFO L225 Difference]: With dead ends: 13649 [2022-10-16 02:52:31,171 INFO L226 Difference]: Without dead ends: 13649 [2022-10-16 02:52:31,171 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 02:52:31,172 INFO L413 NwaCegarLoop]: 608 mSDtfsCounter, 174 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1102 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 02:52:31,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 1102 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:31,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13649 states. [2022-10-16 02:52:31,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13649 to 13644. [2022-10-16 02:52:31,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13644 states, 13642 states have (on average 1.6724087377217416) internal successors, (22815), 13643 states have internal predecessors, (22815), 0 states have call successors, (0), 0 states 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 02:52:31,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13644 states to 13644 states and 22815 transitions. [2022-10-16 02:52:31,649 INFO L78 Accepts]: Start accepts. Automaton has 13644 states and 22815 transitions. Word has length 136 [2022-10-16 02:52:31,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:31,650 INFO L495 AbstractCegarLoop]: Abstraction has 13644 states and 22815 transitions. [2022-10-16 02:52:31,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states 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 02:52:31,650 INFO L276 IsEmpty]: Start isEmpty. Operand 13644 states and 22815 transitions. [2022-10-16 02:52:31,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-10-16 02:52:31,653 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:31,653 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:31,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 02:52:31,654 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:31,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:31,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1835427887, now seen corresponding path program 1 times [2022-10-16 02:52:31,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:31,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097832091] [2022-10-16 02:52:31,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:31,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:31,968 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 02:52:31,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:31,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097832091] [2022-10-16 02:52:31,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097832091] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:31,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:31,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:52:31,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25405468] [2022-10-16 02:52:31,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:31,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:52:31,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:31,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:52:31,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:52:31,972 INFO L87 Difference]: Start difference. First operand 13644 states and 22815 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states 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 02:52:32,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:32,264 INFO L93 Difference]: Finished difference Result 30786 states and 51425 transitions. [2022-10-16 02:52:32,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:52:32,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2022-10-16 02:52:32,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:32,360 INFO L225 Difference]: With dead ends: 30786 [2022-10-16 02:52:32,360 INFO L226 Difference]: Without dead ends: 30786 [2022-10-16 02:52:32,361 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 02:52:32,363 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 626 mSDsluCounter, 1204 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 1725 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 02:52:32,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 1725 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:52:32,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30786 states. [2022-10-16 02:52:32,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30786 to 22158. [2022-10-16 02:52:33,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22158 states, 22156 states have (on average 1.6670427875067702) internal successors, (36935), 22157 states have internal predecessors, (36935), 0 states have call successors, (0), 0 states 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 02:52:33,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22158 states to 22158 states and 36935 transitions. [2022-10-16 02:52:33,105 INFO L78 Accepts]: Start accepts. Automaton has 22158 states and 36935 transitions. Word has length 136 [2022-10-16 02:52:33,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:33,106 INFO L495 AbstractCegarLoop]: Abstraction has 22158 states and 36935 transitions. [2022-10-16 02:52:33,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states 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 02:52:33,107 INFO L276 IsEmpty]: Start isEmpty. Operand 22158 states and 36935 transitions. [2022-10-16 02:52:33,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-10-16 02:52:33,109 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:33,109 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:33,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 02:52:33,110 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:33,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:33,110 INFO L85 PathProgramCache]: Analyzing trace with hash -443602444, now seen corresponding path program 1 times [2022-10-16 02:52:33,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:33,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778779400] [2022-10-16 02:52:33,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:33,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:33,450 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 02:52:33,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:33,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778779400] [2022-10-16 02:52:33,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778779400] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:33,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:33,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:52:33,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079029861] [2022-10-16 02:52:33,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:33,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:52:33,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:33,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:52:33,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:52:33,454 INFO L87 Difference]: Start difference. First operand 22158 states and 36935 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states 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 02:52:33,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:33,712 INFO L93 Difference]: Finished difference Result 33286 states and 55365 transitions. [2022-10-16 02:52:33,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:52:33,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2022-10-16 02:52:33,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:33,879 INFO L225 Difference]: With dead ends: 33286 [2022-10-16 02:52:33,880 INFO L226 Difference]: Without dead ends: 33286 [2022-10-16 02:52:33,880 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 02:52:33,881 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 195 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1184 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 02:52:33,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1184 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:33,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33286 states. [2022-10-16 02:52:34,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33286 to 33281. [2022-10-16 02:52:34,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33281 states, 33279 states have (on average 1.6635716217434418) internal successors, (55362), 33280 states have internal predecessors, (55362), 0 states have call successors, (0), 0 states 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 02:52:35,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33281 states to 33281 states and 55362 transitions. [2022-10-16 02:52:35,054 INFO L78 Accepts]: Start accepts. Automaton has 33281 states and 55362 transitions. Word has length 136 [2022-10-16 02:52:35,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:35,055 INFO L495 AbstractCegarLoop]: Abstraction has 33281 states and 55362 transitions. [2022-10-16 02:52:35,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states 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 02:52:35,060 INFO L276 IsEmpty]: Start isEmpty. Operand 33281 states and 55362 transitions. [2022-10-16 02:52:35,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-10-16 02:52:35,062 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:35,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:35,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 02:52:35,065 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:35,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:35,066 INFO L85 PathProgramCache]: Analyzing trace with hash -692908230, now seen corresponding path program 1 times [2022-10-16 02:52:35,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:35,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467763830] [2022-10-16 02:52:35,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:35,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:35,280 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 02:52:35,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:35,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467763830] [2022-10-16 02:52:35,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467763830] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:35,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:35,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:52:35,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697398649] [2022-10-16 02:52:35,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:35,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:52:35,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:35,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:52:35,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:52:35,283 INFO L87 Difference]: Start difference. First operand 33281 states and 55362 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:52:35,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:35,979 INFO L93 Difference]: Finished difference Result 75163 states and 124799 transitions. [2022-10-16 02:52:35,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:52:35,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-10-16 02:52:35,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:36,271 INFO L225 Difference]: With dead ends: 75163 [2022-10-16 02:52:36,271 INFO L226 Difference]: Without dead ends: 75163 [2022-10-16 02:52:36,273 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 02:52:36,274 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 624 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 1727 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 02:52:36,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 1727 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:52:36,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75163 states. [2022-10-16 02:52:37,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75163 to 54076. [2022-10-16 02:52:37,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54076 states, 54074 states have (on average 1.656692680400932) internal successors, (89584), 54075 states have internal predecessors, (89584), 0 states have call successors, (0), 0 states 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 02:52:38,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54076 states to 54076 states and 89584 transitions. [2022-10-16 02:52:38,165 INFO L78 Accepts]: Start accepts. Automaton has 54076 states and 89584 transitions. Word has length 137 [2022-10-16 02:52:38,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:38,165 INFO L495 AbstractCegarLoop]: Abstraction has 54076 states and 89584 transitions. [2022-10-16 02:52:38,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:52:38,166 INFO L276 IsEmpty]: Start isEmpty. Operand 54076 states and 89584 transitions. [2022-10-16 02:52:38,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-16 02:52:38,168 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:38,168 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:38,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 02:52:38,169 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:38,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:38,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1592912186, now seen corresponding path program 1 times [2022-10-16 02:52:38,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:38,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097112514] [2022-10-16 02:52:38,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:38,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:38,355 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 02:52:38,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:38,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097112514] [2022-10-16 02:52:38,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097112514] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:38,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:38,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:52:38,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388619486] [2022-10-16 02:52:38,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:38,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:52:38,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:38,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:52:38,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:52:38,361 INFO L87 Difference]: Start difference. First operand 54076 states and 89584 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states 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 02:52:39,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:39,217 INFO L93 Difference]: Finished difference Result 120002 states and 198443 transitions. [2022-10-16 02:52:39,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:52:39,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2022-10-16 02:52:39,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:39,608 INFO L225 Difference]: With dead ends: 120002 [2022-10-16 02:52:39,608 INFO L226 Difference]: Without dead ends: 120002 [2022-10-16 02:52:39,608 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 02:52:39,609 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 622 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 1729 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 02:52:39,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 1729 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:52:39,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120002 states. [2022-10-16 02:52:41,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120002 to 86811. [2022-10-16 02:52:41,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86811 states, 86809 states have (on average 1.6499441302169129) internal successors, (143230), 86810 states have internal predecessors, (143230), 0 states have call successors, (0), 0 states 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 02:52:42,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86811 states to 86811 states and 143230 transitions. [2022-10-16 02:52:42,097 INFO L78 Accepts]: Start accepts. Automaton has 86811 states and 143230 transitions. Word has length 138 [2022-10-16 02:52:42,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:42,098 INFO L495 AbstractCegarLoop]: Abstraction has 86811 states and 143230 transitions. [2022-10-16 02:52:42,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states 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 02:52:42,098 INFO L276 IsEmpty]: Start isEmpty. Operand 86811 states and 143230 transitions. [2022-10-16 02:52:42,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-10-16 02:52:42,100 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:42,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:42,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 02:52:42,101 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:42,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:42,101 INFO L85 PathProgramCache]: Analyzing trace with hash 298565918, now seen corresponding path program 1 times [2022-10-16 02:52:42,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:42,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253075180] [2022-10-16 02:52:42,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:42,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:42,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:42,989 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 02:52:42,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:42,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253075180] [2022-10-16 02:52:42,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253075180] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:42,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:42,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:52:42,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804698338] [2022-10-16 02:52:42,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:42,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:52:42,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:42,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:52:42,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:52:42,993 INFO L87 Difference]: Start difference. First operand 86811 states and 143230 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states 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 02:52:43,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:43,471 INFO L93 Difference]: Finished difference Result 86816 states and 142608 transitions. [2022-10-16 02:52:43,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:52:43,472 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2022-10-16 02:52:43,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:43,662 INFO L225 Difference]: With dead ends: 86816 [2022-10-16 02:52:43,663 INFO L226 Difference]: Without dead ends: 86816 [2022-10-16 02:52:43,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:52:43,665 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 681 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 2001 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:52:43,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 2001 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:52:44,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86816 states. [2022-10-16 02:52:45,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86816 to 86811. [2022-10-16 02:52:45,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86811 states, 86809 states have (on average 1.642744415901577) internal successors, (142605), 86810 states have internal predecessors, (142605), 0 states have call successors, (0), 0 states 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 02:52:45,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86811 states to 86811 states and 142605 transitions. [2022-10-16 02:52:45,985 INFO L78 Accepts]: Start accepts. Automaton has 86811 states and 142605 transitions. Word has length 140 [2022-10-16 02:52:45,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:45,986 INFO L495 AbstractCegarLoop]: Abstraction has 86811 states and 142605 transitions. [2022-10-16 02:52:45,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states 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 02:52:45,986 INFO L276 IsEmpty]: Start isEmpty. Operand 86811 states and 142605 transitions. [2022-10-16 02:52:46,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-10-16 02:52:46,000 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:46,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:46,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 02:52:46,003 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:46,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:46,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1347255107, now seen corresponding path program 1 times [2022-10-16 02:52:46,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:46,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85729459] [2022-10-16 02:52:46,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:46,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:46,433 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 02:52:46,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:46,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85729459] [2022-10-16 02:52:46,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85729459] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:46,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:46,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:52:46,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595881163] [2022-10-16 02:52:46,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:46,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:52:46,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:46,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:52:46,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:52:46,436 INFO L87 Difference]: Start difference. First operand 86811 states and 142605 transitions. Second operand has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:52:47,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:47,467 INFO L93 Difference]: Finished difference Result 167230 states and 273117 transitions. [2022-10-16 02:52:47,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:52:47,468 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-10-16 02:52:47,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:47,924 INFO L225 Difference]: With dead ends: 167230 [2022-10-16 02:52:47,925 INFO L226 Difference]: Without dead ends: 167230 [2022-10-16 02:52:47,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:52:47,926 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 844 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 2014 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:52:47,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 2014 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:52:48,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167230 states. [2022-10-16 02:52:50,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167230 to 167225. [2022-10-16 02:52:50,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167225 states, 167223 states have (on average 1.6332322706804685) internal successors, (273114), 167224 states have internal predecessors, (273114), 0 states have call successors, (0), 0 states 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 02:52:51,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167225 states to 167225 states and 273114 transitions. [2022-10-16 02:52:51,571 INFO L78 Accepts]: Start accepts. Automaton has 167225 states and 273114 transitions. Word has length 143 [2022-10-16 02:52:51,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:51,585 INFO L495 AbstractCegarLoop]: Abstraction has 167225 states and 273114 transitions. [2022-10-16 02:52:51,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:52:51,588 INFO L276 IsEmpty]: Start isEmpty. Operand 167225 states and 273114 transitions. [2022-10-16 02:52:51,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-10-16 02:52:51,596 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:51,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:51,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 02:52:51,597 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:51,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:51,597 INFO L85 PathProgramCache]: Analyzing trace with hash 753419399, now seen corresponding path program 1 times [2022-10-16 02:52:51,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:51,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778144984] [2022-10-16 02:52:51,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:51,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:52:52,341 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 02:52:52,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:52:52,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778144984] [2022-10-16 02:52:52,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778144984] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:52:52,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:52:52,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 02:52:52,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506040889] [2022-10-16 02:52:52,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:52:52,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 02:52:52,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:52:52,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 02:52:52,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:52:52,346 INFO L87 Difference]: Start difference. First operand 167225 states and 273114 transitions. Second operand has 8 states, 8 states have (on average 18.0) internal successors, (144), 8 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:52:54,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:52:54,331 INFO L93 Difference]: Finished difference Result 322658 states and 520287 transitions. [2022-10-16 02:52:54,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:52:54,332 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.0) internal successors, (144), 8 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2022-10-16 02:52:54,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:52:55,099 INFO L225 Difference]: With dead ends: 322658 [2022-10-16 02:52:55,099 INFO L226 Difference]: Without dead ends: 322658 [2022-10-16 02:52:55,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-10-16 02:52:55,102 INFO L413 NwaCegarLoop]: 644 mSDtfsCounter, 1543 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1543 SdHoareTripleChecker+Valid, 3165 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 02:52:55,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1543 Valid, 3165 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:52:55,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322658 states. [2022-10-16 02:52:58,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322658 to 173033. [2022-10-16 02:52:58,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173033 states, 173031 states have (on average 1.611821003172842) internal successors, (278895), 173032 states have internal predecessors, (278895), 0 states have call successors, (0), 0 states 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 02:52:59,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173033 states to 173033 states and 278895 transitions. [2022-10-16 02:52:59,682 INFO L78 Accepts]: Start accepts. Automaton has 173033 states and 278895 transitions. Word has length 144 [2022-10-16 02:52:59,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:52:59,683 INFO L495 AbstractCegarLoop]: Abstraction has 173033 states and 278895 transitions. [2022-10-16 02:52:59,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.0) internal successors, (144), 8 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:52:59,684 INFO L276 IsEmpty]: Start isEmpty. Operand 173033 states and 278895 transitions. [2022-10-16 02:52:59,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-10-16 02:52:59,685 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:52:59,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:59,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 02:52:59,687 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:52:59,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:52:59,689 INFO L85 PathProgramCache]: Analyzing trace with hash -375980142, now seen corresponding path program 1 times [2022-10-16 02:52:59,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:52:59,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173137792] [2022-10-16 02:52:59,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:52:59,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:52:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:53:00,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:53:00,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:53:00,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173137792] [2022-10-16 02:53:00,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173137792] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:53:00,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695424941] [2022-10-16 02:53:00,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:53:00,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:53:00,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:53:00,031 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:53:00,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 02:53:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:53:00,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 02:53:00,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:53:00,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 02:53:00,491 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:53:00,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695424941] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:53:00,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:53:00,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 02:53:00,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589128305] [2022-10-16 02:53:00,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:53:00,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:53:00,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:53:00,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:53:00,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:53:00,494 INFO L87 Difference]: Start difference. First operand 173033 states and 278895 transitions. Second operand has 3 states, 2 states have (on average 73.5) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:53:01,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:53:01,582 INFO L93 Difference]: Finished difference Result 173032 states and 278894 transitions. [2022-10-16 02:53:01,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:53:01,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 73.5) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2022-10-16 02:53:01,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:53:02,245 INFO L225 Difference]: With dead ends: 173032 [2022-10-16 02:53:02,245 INFO L226 Difference]: Without dead ends: 173030 [2022-10-16 02:53:02,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:53:02,249 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 385 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:53:02,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 531 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:53:02,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173030 states. [2022-10-16 02:53:04,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173030 to 173030. [2022-10-16 02:53:04,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173030 states, 173029 states have (on average 1.5987840188638898) internal successors, (276636), 173029 states have internal predecessors, (276636), 0 states have call successors, (0), 0 states 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 02:53:05,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173030 states to 173030 states and 276636 transitions. [2022-10-16 02:53:05,440 INFO L78 Accepts]: Start accepts. Automaton has 173030 states and 276636 transitions. Word has length 147 [2022-10-16 02:53:05,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:53:05,441 INFO L495 AbstractCegarLoop]: Abstraction has 173030 states and 276636 transitions. [2022-10-16 02:53:05,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 73.5) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:53:05,441 INFO L276 IsEmpty]: Start isEmpty. Operand 173030 states and 276636 transitions. [2022-10-16 02:53:05,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-10-16 02:53:05,450 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:53:05,450 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:05,478 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 02:53:05,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:53:05,652 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:53:05,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:53:05,653 INFO L85 PathProgramCache]: Analyzing trace with hash -76898287, now seen corresponding path program 1 times [2022-10-16 02:53:05,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:53:05,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809282592] [2022-10-16 02:53:05,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:53:05,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:53:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:53:06,017 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 02:53:06,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:53:06,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809282592] [2022-10-16 02:53:06,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809282592] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:53:06,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:53:06,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:53:06,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987705546] [2022-10-16 02:53:06,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:53:06,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:53:06,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:53:06,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:53:06,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:53:06,020 INFO L87 Difference]: Start difference. First operand 173030 states and 276636 transitions. Second operand has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 0 states 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 02:53:08,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:53:08,671 INFO L93 Difference]: Finished difference Result 396742 states and 634726 transitions. [2022-10-16 02:53:08,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:53:08,678 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 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 180 [2022-10-16 02:53:08,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:53:09,586 INFO L225 Difference]: With dead ends: 396742 [2022-10-16 02:53:09,586 INFO L226 Difference]: Without dead ends: 396742 [2022-10-16 02:53:09,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:53:09,588 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 1244 mSDsluCounter, 2079 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1244 SdHoareTripleChecker+Valid, 2807 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:53:09,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1244 Valid, 2807 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:53:09,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396742 states. [2022-10-16 02:53:15,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396742 to 278326. [2022-10-16 02:53:15,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278326 states, 278325 states have (on average 1.5964142639001169) internal successors, (444322), 278325 states have internal predecessors, (444322), 0 states have call successors, (0), 0 states 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 02:53:17,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278326 states to 278326 states and 444322 transitions. [2022-10-16 02:53:17,217 INFO L78 Accepts]: Start accepts. Automaton has 278326 states and 444322 transitions. Word has length 180 [2022-10-16 02:53:17,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:53:17,218 INFO L495 AbstractCegarLoop]: Abstraction has 278326 states and 444322 transitions. [2022-10-16 02:53:17,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 0 states 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 02:53:17,218 INFO L276 IsEmpty]: Start isEmpty. Operand 278326 states and 444322 transitions. [2022-10-16 02:53:17,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-10-16 02:53:17,248 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:53:17,249 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:17,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 02:53:17,251 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:53:17,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:53:17,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1525407931, now seen corresponding path program 1 times [2022-10-16 02:53:17,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:53:17,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336013470] [2022-10-16 02:53:17,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:53:17,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:53:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:53:17,598 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 02:53:17,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:53:17,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336013470] [2022-10-16 02:53:17,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336013470] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:53:17,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:53:17,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:53:17,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450679356] [2022-10-16 02:53:17,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:53:17,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:53:17,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:53:17,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:53:17,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:53:17,601 INFO L87 Difference]: Start difference. First operand 278326 states and 444322 transitions. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 02:53:19,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:53:19,627 INFO L93 Difference]: Finished difference Result 445478 states and 712962 transitions. [2022-10-16 02:53:19,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:53:19,627 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 0 states have call successors, (0), 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 180 [2022-10-16 02:53:19,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:53:21,889 INFO L225 Difference]: With dead ends: 445478 [2022-10-16 02:53:21,890 INFO L226 Difference]: Without dead ends: 445478 [2022-10-16 02:53:21,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:53:21,891 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 1326 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 2969 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:53:21,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 2969 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:53:22,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445478 states. [2022-10-16 02:53:29,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445478 to 376646. [2022-10-16 02:53:30,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376646 states, 376645 states have (on average 1.5968192860651276) internal successors, (601434), 376645 states have internal predecessors, (601434), 0 states have call successors, (0), 0 states 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 02:53:32,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376646 states to 376646 states and 601434 transitions. [2022-10-16 02:53:32,629 INFO L78 Accepts]: Start accepts. Automaton has 376646 states and 601434 transitions. Word has length 180 [2022-10-16 02:53:32,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:53:32,629 INFO L495 AbstractCegarLoop]: Abstraction has 376646 states and 601434 transitions. [2022-10-16 02:53:32,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 02:53:32,629 INFO L276 IsEmpty]: Start isEmpty. Operand 376646 states and 601434 transitions. [2022-10-16 02:53:32,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-10-16 02:53:32,639 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:53:32,639 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:32,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-16 02:53:32,640 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:53:32,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:53:32,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1181520529, now seen corresponding path program 1 times [2022-10-16 02:53:32,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:53:32,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677483992] [2022-10-16 02:53:32,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:53:32,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:53:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:53:32,933 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 02:53:32,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:53:32,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677483992] [2022-10-16 02:53:32,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677483992] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:53:32,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:53:32,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:53:32,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26666928] [2022-10-16 02:53:32,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:53:32,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:53:32,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:53:32,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:53:32,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:53:32,937 INFO L87 Difference]: Start difference. First operand 376646 states and 601434 transitions. Second operand has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 0 states have call successors, (0), 0 states 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 02:53:35,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:53:35,785 INFO L93 Difference]: Finished difference Result 475918 states and 761722 transitions. [2022-10-16 02:53:35,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:53:35,786 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 0 states have call successors, (0), 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 180 [2022-10-16 02:53:35,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:53:36,829 INFO L225 Difference]: With dead ends: 475918 [2022-10-16 02:53:36,830 INFO L226 Difference]: Without dead ends: 475918 [2022-10-16 02:53:36,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:53:36,830 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 1260 mSDsluCounter, 2349 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 3074 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:53:36,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1260 Valid, 3074 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:53:37,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475918 states. [2022-10-16 02:53:44,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475918 to 436566. [2022-10-16 02:53:44,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436566 states, 436565 states have (on average 1.5980346569239403) internal successors, (697646), 436565 states have internal predecessors, (697646), 0 states have call successors, (0), 0 states 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 02:53:47,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436566 states to 436566 states and 697646 transitions. [2022-10-16 02:53:47,966 INFO L78 Accepts]: Start accepts. Automaton has 436566 states and 697646 transitions. Word has length 180 [2022-10-16 02:53:47,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:53:47,967 INFO L495 AbstractCegarLoop]: Abstraction has 436566 states and 697646 transitions. [2022-10-16 02:53:47,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 0 states have call successors, (0), 0 states 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 02:53:47,967 INFO L276 IsEmpty]: Start isEmpty. Operand 436566 states and 697646 transitions. [2022-10-16 02:53:47,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-10-16 02:53:48,000 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:53:48,002 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:48,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-16 02:53:48,002 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:53:48,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:53:48,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1462523193, now seen corresponding path program 1 times [2022-10-16 02:53:48,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:53:48,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652352707] [2022-10-16 02:53:48,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:53:48,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:53:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:53:48,170 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:53:48,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:53:48,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652352707] [2022-10-16 02:53:48,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652352707] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:53:48,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:53:48,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:53:48,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137879305] [2022-10-16 02:53:48,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:53:48,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:53:48,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:53:48,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:53:48,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:53:48,175 INFO L87 Difference]: Start difference. First operand 436566 states and 697646 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states 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 02:53:52,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:53:52,523 INFO L93 Difference]: Finished difference Result 799517 states and 1278420 transitions. [2022-10-16 02:53:52,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:53:52,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 180 [2022-10-16 02:53:52,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:53:54,452 INFO L225 Difference]: With dead ends: 799517 [2022-10-16 02:53:54,453 INFO L226 Difference]: Without dead ends: 799517 [2022-10-16 02:53:54,453 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 02:53:54,458 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 159 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:53:54,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 1009 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:53:55,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799517 states. [2022-10-16 02:54:10,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799517 to 798840. [2022-10-16 02:54:12,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798840 states, 798839 states have (on average 1.5995012762271246) internal successors, (1277744), 798839 states have internal predecessors, (1277744), 0 states have call successors, (0), 0 states 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 02:54:16,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798840 states to 798840 states and 1277744 transitions. [2022-10-16 02:54:16,983 INFO L78 Accepts]: Start accepts. Automaton has 798840 states and 1277744 transitions. Word has length 180 [2022-10-16 02:54:16,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:54:16,984 INFO L495 AbstractCegarLoop]: Abstraction has 798840 states and 1277744 transitions. [2022-10-16 02:54:16,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states 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 02:54:16,985 INFO L276 IsEmpty]: Start isEmpty. Operand 798840 states and 1277744 transitions. [2022-10-16 02:54:16,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-10-16 02:54:16,995 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:54:16,995 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:54:16,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-10-16 02:54:17,002 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:54:17,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:54:17,003 INFO L85 PathProgramCache]: Analyzing trace with hash -85104553, now seen corresponding path program 1 times [2022-10-16 02:54:17,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:54:17,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221338954] [2022-10-16 02:54:17,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:54:17,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:54:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:54:17,139 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:54:17,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:54:17,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221338954] [2022-10-16 02:54:17,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221338954] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:54:17,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:54:17,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:54:17,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890192511] [2022-10-16 02:54:17,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:54:17,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:54:17,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:54:17,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:54:17,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:54:17,143 INFO L87 Difference]: Start difference. First operand 798840 states and 1277744 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states 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 02:54:26,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:54:26,685 INFO L93 Difference]: Finished difference Result 1574957 states and 2505346 transitions. [2022-10-16 02:54:26,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:54:26,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2022-10-16 02:54:26,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:54:34,251 INFO L225 Difference]: With dead ends: 1574957 [2022-10-16 02:54:34,251 INFO L226 Difference]: Without dead ends: 1574957 [2022-10-16 02:54:34,252 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 02:54:34,255 INFO L413 NwaCegarLoop]: 871 mSDtfsCounter, 445 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:54:34,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 1386 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:54:36,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574957 states.