./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/locks/test_locks_11.c --full-output --preprocessor.use.memory.slicer true --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6ae2ee47 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/locks/test_locks_11.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dd9c6b82321d3b192dc5809ecc7ca6021855509a18ab1d23ca9eeb538976a0c0 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 17:13:44,743 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 17:13:44,782 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-22 17:13:44,785 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 17:13:44,785 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 17:13:44,800 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 17:13:44,800 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 17:13:44,801 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 17:13:44,801 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 17:13:44,802 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 17:13:44,802 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 17:13:44,803 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 17:13:44,804 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 17:13:44,805 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 17:13:44,805 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-22 17:13:44,806 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 17:13:44,806 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-22 17:13:44,806 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 17:13:44,808 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-22 17:13:44,808 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-22 17:13:44,808 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-22 17:13:44,809 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 17:13:44,809 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-22 17:13:44,809 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-22 17:13:44,809 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-22 17:13:44,812 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 17:13:44,812 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 17:13:44,812 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 17:13:44,812 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 17:13:44,813 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 17:13:44,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 17:13:44,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 17:13:44,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 17:13:44,813 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 17:13:44,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 17:13:44,814 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 17:13:44,815 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 17:13:44,815 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 17:13:44,815 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 17:13:44,815 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd9c6b82321d3b192dc5809ecc7ca6021855509a18ab1d23ca9eeb538976a0c0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-22 17:13:45,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 17:13:45,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 17:13:45,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 17:13:45,084 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 17:13:45,084 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 17:13:45,085 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_11.c [2023-11-22 17:13:46,194 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 17:13:46,362 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 17:13:46,362 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_11.c [2023-11-22 17:13:46,370 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc6fac4f8/c9efdfb6c6bc48e58b15d0c3c1616f44/FLAG6909db46f [2023-11-22 17:13:46,384 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc6fac4f8/c9efdfb6c6bc48e58b15d0c3c1616f44 [2023-11-22 17:13:46,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 17:13:46,388 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 17:13:46,390 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 17:13:46,391 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 17:13:46,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 17:13:46,397 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:13:46" (1/1) ... [2023-11-22 17:13:46,397 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@373a0a9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:13:46, skipping insertion in model container [2023-11-22 17:13:46,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:13:46" (1/1) ... [2023-11-22 17:13:46,427 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 17:13:46,570 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 17:13:46,583 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 17:13:46,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 17:13:46,676 INFO L206 MainTranslator]: Completed translation [2023-11-22 17:13:46,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:13:46 WrapperNode [2023-11-22 17:13:46,677 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 17:13:46,678 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 17:13:46,678 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 17:13:46,678 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 17:13:46,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:13:46" (1/1) ... [2023-11-22 17:13:46,688 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:13:46" (1/1) ... [2023-11-22 17:13:46,703 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 161 [2023-11-22 17:13:46,704 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 17:13:46,704 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 17:13:46,704 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 17:13:46,704 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 17:13:46,712 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:13:46" (1/1) ... [2023-11-22 17:13:46,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:13:46" (1/1) ... [2023-11-22 17:13:46,714 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:13:46" (1/1) ... [2023-11-22 17:13:46,721 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-22 17:13:46,723 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:13:46" (1/1) ... [2023-11-22 17:13:46,723 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:13:46" (1/1) ... [2023-11-22 17:13:46,726 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:13:46" (1/1) ... [2023-11-22 17:13:46,733 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:13:46" (1/1) ... [2023-11-22 17:13:46,733 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:13:46" (1/1) ... [2023-11-22 17:13:46,734 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:13:46" (1/1) ... [2023-11-22 17:13:46,736 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 17:13:46,736 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 17:13:46,736 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 17:13:46,736 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 17:13:46,737 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:13:46" (1/1) ... [2023-11-22 17:13:46,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 17:13:46,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 17:13:46,762 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) [2023-11-22 17:13:46,788 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 [2023-11-22 17:13:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 17:13:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 17:13:46,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 17:13:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-22 17:13:46,853 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 17:13:46,855 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 17:13:47,081 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 17:13:47,102 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 17:13:47,102 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-22 17:13:47,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:13:47 BoogieIcfgContainer [2023-11-22 17:13:47,103 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 17:13:47,105 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 17:13:47,106 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 17:13:47,108 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 17:13:47,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:13:46" (1/3) ... [2023-11-22 17:13:47,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cff1a87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:13:47, skipping insertion in model container [2023-11-22 17:13:47,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:13:46" (2/3) ... [2023-11-22 17:13:47,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cff1a87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:13:47, skipping insertion in model container [2023-11-22 17:13:47,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:13:47" (3/3) ... [2023-11-22 17:13:47,112 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_11.c [2023-11-22 17:13:47,126 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 17:13:47,126 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-22 17:13:47,166 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 17:13:47,171 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=PETRI_NET, 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;@7315dae9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 17:13:47,171 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-22 17:13:47,175 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 40 states have (on average 1.95) internal successors, (78), 42 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-22 17:13:47,179 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:47,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-22 17:13:47,181 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:47,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:47,186 INFO L85 PathProgramCache]: Analyzing trace with hash 7492822, now seen corresponding path program 1 times [2023-11-22 17:13:47,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:47,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633559962] [2023-11-22 17:13:47,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:47,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:47,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:47,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:47,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633559962] [2023-11-22 17:13:47,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633559962] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:47,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:47,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-22 17:13:47,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704669580] [2023-11-22 17:13:47,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:47,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-22 17:13:47,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:47,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-22 17:13:47,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-22 17:13:47,326 INFO L87 Difference]: Start difference. First operand has 43 states, 40 states have (on average 1.95) internal successors, (78), 42 states have internal predecessors, (78), 0 states have call successors, (0), 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 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:47,351 INFO L93 Difference]: Finished difference Result 43 states and 75 transitions. [2023-11-22 17:13:47,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 17:13:47,354 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2023-11-22 17:13:47,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:47,360 INFO L225 Difference]: With dead ends: 43 [2023-11-22 17:13:47,360 INFO L226 Difference]: Without dead ends: 42 [2023-11-22 17:13:47,362 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 [2023-11-22 17:13:47,364 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:47,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:47,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-22 17:13:47,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-11-22 17:13:47,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 40 states have (on average 1.85) internal successors, (74), 41 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 74 transitions. [2023-11-22 17:13:47,390 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 74 transitions. Word has length 4 [2023-11-22 17:13:47,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:47,391 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 74 transitions. [2023-11-22 17:13:47,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,392 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 74 transitions. [2023-11-22 17:13:47,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-22 17:13:47,393 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:47,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-22 17:13:47,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 17:13:47,393 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:47,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:47,394 INFO L85 PathProgramCache]: Analyzing trace with hash 232151558, now seen corresponding path program 1 times [2023-11-22 17:13:47,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:47,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744313159] [2023-11-22 17:13:47,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:47,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:47,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:47,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:47,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744313159] [2023-11-22 17:13:47,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744313159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:47,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:47,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-22 17:13:47,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083190430] [2023-11-22 17:13:47,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:47,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:47,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:47,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:47,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:47,456 INFO L87 Difference]: Start difference. First operand 42 states and 74 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:47,463 INFO L93 Difference]: Finished difference Result 41 states and 73 transitions. [2023-11-22 17:13:47,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:47,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2023-11-22 17:13:47,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:47,464 INFO L225 Difference]: With dead ends: 41 [2023-11-22 17:13:47,465 INFO L226 Difference]: Without dead ends: 39 [2023-11-22 17:13:47,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:47,466 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 69 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 72 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 [2023-11-22 17:13:47,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 72 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:47,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-22 17:13:47,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-22 17:13:47,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.868421052631579) internal successors, (71), 38 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 71 transitions. [2023-11-22 17:13:47,470 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 71 transitions. Word has length 5 [2023-11-22 17:13:47,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:47,470 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 71 transitions. [2023-11-22 17:13:47,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,471 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 71 transitions. [2023-11-22 17:13:47,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-22 17:13:47,471 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:47,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 17:13:47,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-22 17:13:47,472 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:47,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:47,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1707449351, now seen corresponding path program 1 times [2023-11-22 17:13:47,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:47,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295596480] [2023-11-22 17:13:47,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:47,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:47,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:47,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:47,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295596480] [2023-11-22 17:13:47,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295596480] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:47,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:47,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:47,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759616427] [2023-11-22 17:13:47,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:47,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:47,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:47,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:47,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:47,556 INFO L87 Difference]: Start difference. First operand 39 states and 71 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:47,573 INFO L93 Difference]: Finished difference Result 76 states and 138 transitions. [2023-11-22 17:13:47,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:47,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2023-11-22 17:13:47,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:47,574 INFO L225 Difference]: With dead ends: 76 [2023-11-22 17:13:47,574 INFO L226 Difference]: Without dead ends: 76 [2023-11-22 17:13:47,574 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 [2023-11-22 17:13:47,575 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 54 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 139 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 [2023-11-22 17:13:47,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 139 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:47,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-22 17:13:47,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 51. [2023-11-22 17:13:47,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.88) internal successors, (94), 50 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 94 transitions. [2023-11-22 17:13:47,582 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 94 transitions. Word has length 18 [2023-11-22 17:13:47,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:47,582 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 94 transitions. [2023-11-22 17:13:47,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,582 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 94 transitions. [2023-11-22 17:13:47,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-22 17:13:47,583 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:47,583 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 17:13:47,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-22 17:13:47,583 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:47,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:47,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1307654267, now seen corresponding path program 1 times [2023-11-22 17:13:47,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:47,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426189746] [2023-11-22 17:13:47,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:47,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:47,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:47,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:47,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:47,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426189746] [2023-11-22 17:13:47,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426189746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:47,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:47,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:47,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997181328] [2023-11-22 17:13:47,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:47,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:47,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:47,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:47,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:47,633 INFO L87 Difference]: Start difference. First operand 51 states and 94 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:47,651 INFO L93 Difference]: Finished difference Result 76 states and 136 transitions. [2023-11-22 17:13:47,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:47,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2023-11-22 17:13:47,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:47,653 INFO L225 Difference]: With dead ends: 76 [2023-11-22 17:13:47,653 INFO L226 Difference]: Without dead ends: 76 [2023-11-22 17:13:47,653 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 [2023-11-22 17:13:47,654 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 54 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:47,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 156 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:47,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-22 17:13:47,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 73. [2023-11-22 17:13:47,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.8611111111111112) internal successors, (134), 72 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) [2023-11-22 17:13:47,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 134 transitions. [2023-11-22 17:13:47,672 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 134 transitions. Word has length 18 [2023-11-22 17:13:47,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:47,672 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 134 transitions. [2023-11-22 17:13:47,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,672 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 134 transitions. [2023-11-22 17:13:47,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-22 17:13:47,673 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:47,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 17:13:47,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-22 17:13:47,673 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:47,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:47,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1384724885, now seen corresponding path program 1 times [2023-11-22 17:13:47,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:47,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417902183] [2023-11-22 17:13:47,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:47,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:47,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:47,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:47,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417902183] [2023-11-22 17:13:47,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417902183] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:47,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:47,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:47,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272108586] [2023-11-22 17:13:47,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:47,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:47,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:47,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:47,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:47,713 INFO L87 Difference]: Start difference. First operand 73 states and 134 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:47,726 INFO L93 Difference]: Finished difference Result 79 states and 138 transitions. [2023-11-22 17:13:47,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:47,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2023-11-22 17:13:47,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:47,727 INFO L225 Difference]: With dead ends: 79 [2023-11-22 17:13:47,727 INFO L226 Difference]: Without dead ends: 79 [2023-11-22 17:13:47,727 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 [2023-11-22 17:13:47,728 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 56 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:47,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 176 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:47,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-22 17:13:47,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2023-11-22 17:13:47,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.8133333333333332) internal successors, (136), 75 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) [2023-11-22 17:13:47,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 136 transitions. [2023-11-22 17:13:47,737 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 136 transitions. Word has length 19 [2023-11-22 17:13:47,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:47,737 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 136 transitions. [2023-11-22 17:13:47,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,737 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 136 transitions. [2023-11-22 17:13:47,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-22 17:13:47,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:47,738 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 17:13:47,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-22 17:13:47,738 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:47,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:47,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1889174057, now seen corresponding path program 1 times [2023-11-22 17:13:47,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:47,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778555389] [2023-11-22 17:13:47,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:47,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:47,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:47,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:47,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:47,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778555389] [2023-11-22 17:13:47,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778555389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:47,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:47,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:47,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392402898] [2023-11-22 17:13:47,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:47,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:47,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:47,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:47,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:47,801 INFO L87 Difference]: Start difference. First operand 76 states and 136 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:47,816 INFO L93 Difference]: Finished difference Result 144 states and 259 transitions. [2023-11-22 17:13:47,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:47,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2023-11-22 17:13:47,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:47,817 INFO L225 Difference]: With dead ends: 144 [2023-11-22 17:13:47,818 INFO L226 Difference]: Without dead ends: 144 [2023-11-22 17:13:47,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:47,819 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 51 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 137 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 [2023-11-22 17:13:47,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 137 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:47,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-22 17:13:47,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 101. [2023-11-22 17:13:47,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 100 states have (on average 1.81) internal successors, (181), 100 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) [2023-11-22 17:13:47,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 181 transitions. [2023-11-22 17:13:47,826 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 181 transitions. Word has length 19 [2023-11-22 17:13:47,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:47,826 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 181 transitions. [2023-11-22 17:13:47,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,827 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 181 transitions. [2023-11-22 17:13:47,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-22 17:13:47,827 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:47,827 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 17:13:47,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-22 17:13:47,828 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:47,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:47,828 INFO L85 PathProgramCache]: Analyzing trace with hash 609310379, now seen corresponding path program 1 times [2023-11-22 17:13:47,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:47,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351998931] [2023-11-22 17:13:47,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:47,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:47,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:47,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:47,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:47,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351998931] [2023-11-22 17:13:47,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351998931] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:47,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:47,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:47,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917410561] [2023-11-22 17:13:47,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:47,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:47,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:47,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:47,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:47,892 INFO L87 Difference]: Start difference. First operand 101 states and 181 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:47,904 INFO L93 Difference]: Finished difference Result 146 states and 257 transitions. [2023-11-22 17:13:47,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:47,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2023-11-22 17:13:47,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:47,905 INFO L225 Difference]: With dead ends: 146 [2023-11-22 17:13:47,905 INFO L226 Difference]: Without dead ends: 146 [2023-11-22 17:13:47,906 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 [2023-11-22 17:13:47,906 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 53 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:47,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 157 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:47,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-22 17:13:47,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 143. [2023-11-22 17:13:47,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.795774647887324) internal successors, (255), 142 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 255 transitions. [2023-11-22 17:13:47,914 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 255 transitions. Word has length 19 [2023-11-22 17:13:47,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:47,914 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 255 transitions. [2023-11-22 17:13:47,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,915 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 255 transitions. [2023-11-22 17:13:47,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-22 17:13:47,916 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:47,916 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] [2023-11-22 17:13:47,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-22 17:13:47,916 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:47,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:47,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1558538362, now seen corresponding path program 1 times [2023-11-22 17:13:47,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:47,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102703225] [2023-11-22 17:13:47,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:47,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:47,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:47,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:47,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102703225] [2023-11-22 17:13:47,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102703225] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:47,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:47,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:47,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073064356] [2023-11-22 17:13:47,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:47,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:47,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:47,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:47,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:47,941 INFO L87 Difference]: Start difference. First operand 143 states and 255 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:47,951 INFO L93 Difference]: Finished difference Result 148 states and 257 transitions. [2023-11-22 17:13:47,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:47,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2023-11-22 17:13:47,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:47,953 INFO L225 Difference]: With dead ends: 148 [2023-11-22 17:13:47,953 INFO L226 Difference]: Without dead ends: 148 [2023-11-22 17:13:47,953 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 [2023-11-22 17:13:47,954 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 55 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:47,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 172 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:47,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-22 17:13:47,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 145. [2023-11-22 17:13:47,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.7708333333333333) internal successors, (255), 144 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 255 transitions. [2023-11-22 17:13:47,961 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 255 transitions. Word has length 20 [2023-11-22 17:13:47,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:47,961 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 255 transitions. [2023-11-22 17:13:47,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:47,961 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 255 transitions. [2023-11-22 17:13:47,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-22 17:13:47,962 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:47,962 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] [2023-11-22 17:13:47,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-22 17:13:47,963 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:47,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:47,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1715360580, now seen corresponding path program 1 times [2023-11-22 17:13:47,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:47,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005606439] [2023-11-22 17:13:47,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:47,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:48,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:48,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:48,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005606439] [2023-11-22 17:13:48,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005606439] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:48,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:48,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:48,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889961246] [2023-11-22 17:13:48,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:48,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:48,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:48,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:48,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:48,004 INFO L87 Difference]: Start difference. First operand 145 states and 255 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:48,014 INFO L93 Difference]: Finished difference Result 280 states and 485 transitions. [2023-11-22 17:13:48,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:48,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2023-11-22 17:13:48,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:48,030 INFO L225 Difference]: With dead ends: 280 [2023-11-22 17:13:48,030 INFO L226 Difference]: Without dead ends: 280 [2023-11-22 17:13:48,030 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 [2023-11-22 17:13:48,031 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 53 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:48,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 139 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:48,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-11-22 17:13:48,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 277. [2023-11-22 17:13:48,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 276 states have (on average 1.75) internal successors, (483), 276 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 483 transitions. [2023-11-22 17:13:48,068 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 483 transitions. Word has length 20 [2023-11-22 17:13:48,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:48,068 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 483 transitions. [2023-11-22 17:13:48,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,068 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 483 transitions. [2023-11-22 17:13:48,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-22 17:13:48,075 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:48,075 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] [2023-11-22 17:13:48,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-22 17:13:48,076 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:48,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:48,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1299743038, now seen corresponding path program 1 times [2023-11-22 17:13:48,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:48,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002646857] [2023-11-22 17:13:48,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:48,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:48,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:48,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:48,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002646857] [2023-11-22 17:13:48,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002646857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:48,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:48,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:48,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715991917] [2023-11-22 17:13:48,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:48,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:48,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:48,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:48,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:48,130 INFO L87 Difference]: Start difference. First operand 277 states and 483 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:48,149 INFO L93 Difference]: Finished difference Result 352 states and 617 transitions. [2023-11-22 17:13:48,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:48,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2023-11-22 17:13:48,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:48,151 INFO L225 Difference]: With dead ends: 352 [2023-11-22 17:13:48,151 INFO L226 Difference]: Without dead ends: 352 [2023-11-22 17:13:48,151 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 [2023-11-22 17:13:48,152 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 48 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:48,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 188 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:48,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-11-22 17:13:48,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 277. [2023-11-22 17:13:48,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 276 states have (on average 1.7355072463768115) internal successors, (479), 276 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 479 transitions. [2023-11-22 17:13:48,167 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 479 transitions. Word has length 20 [2023-11-22 17:13:48,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:48,168 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 479 transitions. [2023-11-22 17:13:48,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,168 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 479 transitions. [2023-11-22 17:13:48,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-22 17:13:48,169 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:48,169 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] [2023-11-22 17:13:48,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-22 17:13:48,169 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:48,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:48,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1643189014, now seen corresponding path program 1 times [2023-11-22 17:13:48,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:48,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276818560] [2023-11-22 17:13:48,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:48,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:48,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:48,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:48,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276818560] [2023-11-22 17:13:48,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276818560] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:48,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:48,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:48,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173032030] [2023-11-22 17:13:48,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:48,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:48,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:48,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:48,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:48,210 INFO L87 Difference]: Start difference. First operand 277 states and 479 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:48,221 INFO L93 Difference]: Finished difference Result 516 states and 897 transitions. [2023-11-22 17:13:48,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:48,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2023-11-22 17:13:48,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:48,223 INFO L225 Difference]: With dead ends: 516 [2023-11-22 17:13:48,223 INFO L226 Difference]: Without dead ends: 516 [2023-11-22 17:13:48,224 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 [2023-11-22 17:13:48,224 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 45 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 133 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 [2023-11-22 17:13:48,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 133 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:48,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-11-22 17:13:48,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 385. [2023-11-22 17:13:48,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.7057291666666667) internal successors, (655), 384 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 655 transitions. [2023-11-22 17:13:48,237 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 655 transitions. Word has length 21 [2023-11-22 17:13:48,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:48,238 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 655 transitions. [2023-11-22 17:13:48,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,239 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 655 transitions. [2023-11-22 17:13:48,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-22 17:13:48,242 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:48,243 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] [2023-11-22 17:13:48,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-22 17:13:48,243 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:48,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:48,244 INFO L85 PathProgramCache]: Analyzing trace with hash 363325336, now seen corresponding path program 1 times [2023-11-22 17:13:48,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:48,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143161392] [2023-11-22 17:13:48,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:48,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:48,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:48,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:48,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143161392] [2023-11-22 17:13:48,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143161392] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:48,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:48,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:48,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435262586] [2023-11-22 17:13:48,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:48,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:48,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:48,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:48,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:48,292 INFO L87 Difference]: Start difference. First operand 385 states and 655 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:48,305 INFO L93 Difference]: Finished difference Result 540 states and 909 transitions. [2023-11-22 17:13:48,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:48,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2023-11-22 17:13:48,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:48,309 INFO L225 Difference]: With dead ends: 540 [2023-11-22 17:13:48,309 INFO L226 Difference]: Without dead ends: 540 [2023-11-22 17:13:48,310 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 [2023-11-22 17:13:48,312 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 51 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:48,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 159 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:48,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2023-11-22 17:13:48,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 537. [2023-11-22 17:13:48,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 536 states have (on average 1.6921641791044777) internal successors, (907), 536 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 907 transitions. [2023-11-22 17:13:48,325 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 907 transitions. Word has length 21 [2023-11-22 17:13:48,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:48,325 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 907 transitions. [2023-11-22 17:13:48,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,326 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 907 transitions. [2023-11-22 17:13:48,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-22 17:13:48,327 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:48,328 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] [2023-11-22 17:13:48,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-22 17:13:48,328 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:48,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:48,329 INFO L85 PathProgramCache]: Analyzing trace with hash -594118961, now seen corresponding path program 1 times [2023-11-22 17:13:48,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:48,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388579714] [2023-11-22 17:13:48,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:48,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:48,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:48,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:48,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388579714] [2023-11-22 17:13:48,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388579714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:48,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:48,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:48,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207518477] [2023-11-22 17:13:48,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:48,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:48,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:48,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:48,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:48,365 INFO L87 Difference]: Start difference. First operand 537 states and 907 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:48,378 INFO L93 Difference]: Finished difference Result 552 states and 917 transitions. [2023-11-22 17:13:48,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:48,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-11-22 17:13:48,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:48,381 INFO L225 Difference]: With dead ends: 552 [2023-11-22 17:13:48,381 INFO L226 Difference]: Without dead ends: 552 [2023-11-22 17:13:48,381 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 [2023-11-22 17:13:48,383 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 53 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:48,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 164 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:48,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2023-11-22 17:13:48,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 549. [2023-11-22 17:13:48,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 548 states have (on average 1.6697080291970803) internal successors, (915), 548 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 915 transitions. [2023-11-22 17:13:48,393 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 915 transitions. Word has length 22 [2023-11-22 17:13:48,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:48,393 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 915 transitions. [2023-11-22 17:13:48,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,394 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 915 transitions. [2023-11-22 17:13:48,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-22 17:13:48,394 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:48,395 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] [2023-11-22 17:13:48,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-22 17:13:48,395 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:48,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:48,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1615187315, now seen corresponding path program 1 times [2023-11-22 17:13:48,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:48,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243505319] [2023-11-22 17:13:48,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:48,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:48,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:48,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:48,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243505319] [2023-11-22 17:13:48,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243505319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:48,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:48,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:48,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666929265] [2023-11-22 17:13:48,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:48,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:48,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:48,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:48,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:48,424 INFO L87 Difference]: Start difference. First operand 549 states and 915 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:48,434 INFO L93 Difference]: Finished difference Result 1000 states and 1677 transitions. [2023-11-22 17:13:48,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:48,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-11-22 17:13:48,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:48,438 INFO L225 Difference]: With dead ends: 1000 [2023-11-22 17:13:48,438 INFO L226 Difference]: Without dead ends: 1000 [2023-11-22 17:13:48,438 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 [2023-11-22 17:13:48,439 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 42 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 131 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 [2023-11-22 17:13:48,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 131 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:48,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2023-11-22 17:13:48,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 773. [2023-11-22 17:13:48,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 772 states have (on average 1.6308290155440415) internal successors, (1259), 772 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1259 transitions. [2023-11-22 17:13:48,451 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1259 transitions. Word has length 22 [2023-11-22 17:13:48,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:48,451 INFO L495 AbstractCegarLoop]: Abstraction has 773 states and 1259 transitions. [2023-11-22 17:13:48,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,452 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1259 transitions. [2023-11-22 17:13:48,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-22 17:13:48,453 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:48,453 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] [2023-11-22 17:13:48,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-22 17:13:48,454 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:48,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:48,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1399916303, now seen corresponding path program 1 times [2023-11-22 17:13:48,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:48,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983823383] [2023-11-22 17:13:48,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:48,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:48,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:48,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:48,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983823383] [2023-11-22 17:13:48,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983823383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:48,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:48,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:48,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354100605] [2023-11-22 17:13:48,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:48,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:48,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:48,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:48,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:48,488 INFO L87 Difference]: Start difference. First operand 773 states and 1259 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:48,500 INFO L93 Difference]: Finished difference Result 1064 states and 1717 transitions. [2023-11-22 17:13:48,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:48,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-11-22 17:13:48,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:48,503 INFO L225 Difference]: With dead ends: 1064 [2023-11-22 17:13:48,503 INFO L226 Difference]: Without dead ends: 1064 [2023-11-22 17:13:48,504 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 [2023-11-22 17:13:48,504 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 50 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:48,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 160 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:48,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2023-11-22 17:13:48,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1061. [2023-11-22 17:13:48,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 1060 states have (on average 1.6179245283018868) internal successors, (1715), 1060 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1715 transitions. [2023-11-22 17:13:48,516 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1715 transitions. Word has length 22 [2023-11-22 17:13:48,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:48,517 INFO L495 AbstractCegarLoop]: Abstraction has 1061 states and 1715 transitions. [2023-11-22 17:13:48,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1715 transitions. [2023-11-22 17:13:48,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-22 17:13:48,518 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:48,518 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] [2023-11-22 17:13:48,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-22 17:13:48,518 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:48,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:48,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1475440515, now seen corresponding path program 1 times [2023-11-22 17:13:48,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:48,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083231895] [2023-11-22 17:13:48,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:48,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:48,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:48,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:48,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083231895] [2023-11-22 17:13:48,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083231895] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:48,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:48,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:48,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893860528] [2023-11-22 17:13:48,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:48,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:48,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:48,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:48,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:48,539 INFO L87 Difference]: Start difference. First operand 1061 states and 1715 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:48,553 INFO L93 Difference]: Finished difference Result 1080 states and 1717 transitions. [2023-11-22 17:13:48,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:48,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2023-11-22 17:13:48,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:48,558 INFO L225 Difference]: With dead ends: 1080 [2023-11-22 17:13:48,558 INFO L226 Difference]: Without dead ends: 1080 [2023-11-22 17:13:48,558 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 [2023-11-22 17:13:48,558 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 52 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:48,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 160 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:48,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2023-11-22 17:13:48,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1077. [2023-11-22 17:13:48,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 1076 states have (on average 1.5938661710037174) internal successors, (1715), 1076 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1715 transitions. [2023-11-22 17:13:48,572 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1715 transitions. Word has length 23 [2023-11-22 17:13:48,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:48,572 INFO L495 AbstractCegarLoop]: Abstraction has 1077 states and 1715 transitions. [2023-11-22 17:13:48,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1715 transitions. [2023-11-22 17:13:48,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-22 17:13:48,573 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:48,573 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] [2023-11-22 17:13:48,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-22 17:13:48,574 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:48,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:48,574 INFO L85 PathProgramCache]: Analyzing trace with hash 454372161, now seen corresponding path program 1 times [2023-11-22 17:13:48,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:48,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997845033] [2023-11-22 17:13:48,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:48,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:48,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:48,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:48,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997845033] [2023-11-22 17:13:48,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997845033] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:48,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:48,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:48,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221596621] [2023-11-22 17:13:48,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:48,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:48,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:48,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:48,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:48,593 INFO L87 Difference]: Start difference. First operand 1077 states and 1715 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:48,605 INFO L93 Difference]: Finished difference Result 1928 states and 3093 transitions. [2023-11-22 17:13:48,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:48,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2023-11-22 17:13:48,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:48,611 INFO L225 Difference]: With dead ends: 1928 [2023-11-22 17:13:48,611 INFO L226 Difference]: Without dead ends: 1928 [2023-11-22 17:13:48,611 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 [2023-11-22 17:13:48,612 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 39 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 129 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 [2023-11-22 17:13:48,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 129 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:48,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2023-11-22 17:13:48,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1541. [2023-11-22 17:13:48,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1541 states, 1540 states have (on average 1.55) internal successors, (2387), 1540 states have internal predecessors, (2387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 2387 transitions. [2023-11-22 17:13:48,648 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 2387 transitions. Word has length 23 [2023-11-22 17:13:48,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:48,649 INFO L495 AbstractCegarLoop]: Abstraction has 1541 states and 2387 transitions. [2023-11-22 17:13:48,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 2387 transitions. [2023-11-22 17:13:48,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-22 17:13:48,651 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:48,651 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] [2023-11-22 17:13:48,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-22 17:13:48,651 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:48,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:48,652 INFO L85 PathProgramCache]: Analyzing trace with hash -825491517, now seen corresponding path program 1 times [2023-11-22 17:13:48,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:48,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853011912] [2023-11-22 17:13:48,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:48,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:48,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:48,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:48,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:48,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853011912] [2023-11-22 17:13:48,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853011912] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:48,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:48,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:48,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381011887] [2023-11-22 17:13:48,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:48,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:48,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:48,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:48,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:48,677 INFO L87 Difference]: Start difference. First operand 1541 states and 2387 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:48,690 INFO L93 Difference]: Finished difference Result 2088 states and 3205 transitions. [2023-11-22 17:13:48,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:48,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2023-11-22 17:13:48,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:48,695 INFO L225 Difference]: With dead ends: 2088 [2023-11-22 17:13:48,695 INFO L226 Difference]: Without dead ends: 2088 [2023-11-22 17:13:48,695 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 [2023-11-22 17:13:48,696 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 49 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:48,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 161 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:48,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2023-11-22 17:13:48,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 2085. [2023-11-22 17:13:48,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2085 states, 2084 states have (on average 1.5369481765834934) internal successors, (3203), 2084 states have internal predecessors, (3203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 3203 transitions. [2023-11-22 17:13:48,724 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 3203 transitions. Word has length 23 [2023-11-22 17:13:48,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:48,724 INFO L495 AbstractCegarLoop]: Abstraction has 2085 states and 3203 transitions. [2023-11-22 17:13:48,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 3203 transitions. [2023-11-22 17:13:48,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-22 17:13:48,726 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:48,726 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] [2023-11-22 17:13:48,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-22 17:13:48,727 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:48,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:48,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1207285402, now seen corresponding path program 1 times [2023-11-22 17:13:48,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:48,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45924789] [2023-11-22 17:13:48,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:48,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:48,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:48,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:48,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45924789] [2023-11-22 17:13:48,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45924789] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:48,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:48,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:48,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138274743] [2023-11-22 17:13:48,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:48,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:48,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:48,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:48,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:48,749 INFO L87 Difference]: Start difference. First operand 2085 states and 3203 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:48,763 INFO L93 Difference]: Finished difference Result 2120 states and 3205 transitions. [2023-11-22 17:13:48,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:48,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2023-11-22 17:13:48,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:48,768 INFO L225 Difference]: With dead ends: 2120 [2023-11-22 17:13:48,768 INFO L226 Difference]: Without dead ends: 2120 [2023-11-22 17:13:48,768 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 [2023-11-22 17:13:48,769 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 51 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:48,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 156 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:48,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2023-11-22 17:13:48,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 2117. [2023-11-22 17:13:48,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 2116 states have (on average 1.5137051039697542) internal successors, (3203), 2116 states have internal predecessors, (3203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 3203 transitions. [2023-11-22 17:13:48,796 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 3203 transitions. Word has length 24 [2023-11-22 17:13:48,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:48,796 INFO L495 AbstractCegarLoop]: Abstraction has 2117 states and 3203 transitions. [2023-11-22 17:13:48,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,797 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 3203 transitions. [2023-11-22 17:13:48,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-22 17:13:48,798 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:48,798 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] [2023-11-22 17:13:48,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-22 17:13:48,798 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:48,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:48,799 INFO L85 PathProgramCache]: Analyzing trace with hash 186217048, now seen corresponding path program 1 times [2023-11-22 17:13:48,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:48,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040084976] [2023-11-22 17:13:48,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:48,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:48,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:48,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:48,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:48,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040084976] [2023-11-22 17:13:48,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040084976] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:48,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:48,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:48,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516630418] [2023-11-22 17:13:48,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:48,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:48,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:48,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:48,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:48,814 INFO L87 Difference]: Start difference. First operand 2117 states and 3203 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:48,830 INFO L93 Difference]: Finished difference Result 3720 states and 5669 transitions. [2023-11-22 17:13:48,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:48,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2023-11-22 17:13:48,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:48,839 INFO L225 Difference]: With dead ends: 3720 [2023-11-22 17:13:48,839 INFO L226 Difference]: Without dead ends: 3720 [2023-11-22 17:13:48,840 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 [2023-11-22 17:13:48,840 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 36 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 127 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 [2023-11-22 17:13:48,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 127 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:48,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3720 states. [2023-11-22 17:13:48,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3720 to 3077. [2023-11-22 17:13:48,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3077 states, 3076 states have (on average 1.467815344603381) internal successors, (4515), 3076 states have internal predecessors, (4515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3077 states to 3077 states and 4515 transitions. [2023-11-22 17:13:48,882 INFO L78 Accepts]: Start accepts. Automaton has 3077 states and 4515 transitions. Word has length 24 [2023-11-22 17:13:48,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:48,882 INFO L495 AbstractCegarLoop]: Abstraction has 3077 states and 4515 transitions. [2023-11-22 17:13:48,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,883 INFO L276 IsEmpty]: Start isEmpty. Operand 3077 states and 4515 transitions. [2023-11-22 17:13:48,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-22 17:13:48,885 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:48,885 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] [2023-11-22 17:13:48,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-22 17:13:48,885 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:48,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:48,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1093646630, now seen corresponding path program 1 times [2023-11-22 17:13:48,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:48,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529712949] [2023-11-22 17:13:48,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:48,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:48,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:48,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:48,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529712949] [2023-11-22 17:13:48,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529712949] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:48,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:48,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:48,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837872331] [2023-11-22 17:13:48,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:48,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:48,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:48,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:48,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:48,901 INFO L87 Difference]: Start difference. First operand 3077 states and 4515 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:48,917 INFO L93 Difference]: Finished difference Result 4104 states and 5957 transitions. [2023-11-22 17:13:48,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:48,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2023-11-22 17:13:48,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:48,926 INFO L225 Difference]: With dead ends: 4104 [2023-11-22 17:13:48,926 INFO L226 Difference]: Without dead ends: 4104 [2023-11-22 17:13:48,926 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 [2023-11-22 17:13:48,927 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 48 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:48,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 162 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:48,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4104 states. [2023-11-22 17:13:48,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4104 to 4101. [2023-11-22 17:13:48,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4101 states, 4100 states have (on average 1.4524390243902439) internal successors, (5955), 4100 states have internal predecessors, (5955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4101 states to 4101 states and 5955 transitions. [2023-11-22 17:13:48,990 INFO L78 Accepts]: Start accepts. Automaton has 4101 states and 5955 transitions. Word has length 24 [2023-11-22 17:13:48,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:48,991 INFO L495 AbstractCegarLoop]: Abstraction has 4101 states and 5955 transitions. [2023-11-22 17:13:48,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:48,991 INFO L276 IsEmpty]: Start isEmpty. Operand 4101 states and 5955 transitions. [2023-11-22 17:13:48,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-22 17:13:48,994 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:48,994 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] [2023-11-22 17:13:48,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-22 17:13:48,994 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:48,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:48,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1484422062, now seen corresponding path program 1 times [2023-11-22 17:13:48,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:48,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109564057] [2023-11-22 17:13:48,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:48,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:49,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:49,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:49,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109564057] [2023-11-22 17:13:49,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109564057] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:49,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:49,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:49,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794447495] [2023-11-22 17:13:49,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:49,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:49,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:49,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:49,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:49,010 INFO L87 Difference]: Start difference. First operand 4101 states and 5955 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:49,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:49,026 INFO L93 Difference]: Finished difference Result 4168 states and 5957 transitions. [2023-11-22 17:13:49,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:49,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2023-11-22 17:13:49,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:49,036 INFO L225 Difference]: With dead ends: 4168 [2023-11-22 17:13:49,036 INFO L226 Difference]: Without dead ends: 4168 [2023-11-22 17:13:49,036 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 [2023-11-22 17:13:49,037 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 50 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:49,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 152 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:49,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4168 states. [2023-11-22 17:13:49,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4168 to 4165. [2023-11-22 17:13:49,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4165 states, 4164 states have (on average 1.430115273775216) internal successors, (5955), 4164 states have internal predecessors, (5955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:49,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4165 states to 4165 states and 5955 transitions. [2023-11-22 17:13:49,088 INFO L78 Accepts]: Start accepts. Automaton has 4165 states and 5955 transitions. Word has length 25 [2023-11-22 17:13:49,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:49,088 INFO L495 AbstractCegarLoop]: Abstraction has 4165 states and 5955 transitions. [2023-11-22 17:13:49,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:49,088 INFO L276 IsEmpty]: Start isEmpty. Operand 4165 states and 5955 transitions. [2023-11-22 17:13:49,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-22 17:13:49,091 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:49,091 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] [2023-11-22 17:13:49,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-22 17:13:49,091 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:49,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:49,092 INFO L85 PathProgramCache]: Analyzing trace with hash 463353708, now seen corresponding path program 1 times [2023-11-22 17:13:49,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:49,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122436362] [2023-11-22 17:13:49,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:49,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:49,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:49,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:49,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122436362] [2023-11-22 17:13:49,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122436362] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:49,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:49,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:49,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711818862] [2023-11-22 17:13:49,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:49,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:49,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:49,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:49,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:49,107 INFO L87 Difference]: Start difference. First operand 4165 states and 5955 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:49,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:49,129 INFO L93 Difference]: Finished difference Result 7176 states and 10309 transitions. [2023-11-22 17:13:49,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:49,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2023-11-22 17:13:49,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:49,142 INFO L225 Difference]: With dead ends: 7176 [2023-11-22 17:13:49,142 INFO L226 Difference]: Without dead ends: 7176 [2023-11-22 17:13:49,142 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 [2023-11-22 17:13:49,143 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 33 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 125 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 [2023-11-22 17:13:49,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 125 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:49,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7176 states. [2023-11-22 17:13:49,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7176 to 6149. [2023-11-22 17:13:49,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6149 states, 6148 states have (on average 1.385003253090436) internal successors, (8515), 6148 states have internal predecessors, (8515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:49,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6149 states to 6149 states and 8515 transitions. [2023-11-22 17:13:49,217 INFO L78 Accepts]: Start accepts. Automaton has 6149 states and 8515 transitions. Word has length 25 [2023-11-22 17:13:49,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:49,217 INFO L495 AbstractCegarLoop]: Abstraction has 6149 states and 8515 transitions. [2023-11-22 17:13:49,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:49,218 INFO L276 IsEmpty]: Start isEmpty. Operand 6149 states and 8515 transitions. [2023-11-22 17:13:49,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-22 17:13:49,223 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:49,223 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] [2023-11-22 17:13:49,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-22 17:13:49,223 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:49,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:49,223 INFO L85 PathProgramCache]: Analyzing trace with hash -816509970, now seen corresponding path program 1 times [2023-11-22 17:13:49,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:49,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435254538] [2023-11-22 17:13:49,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:49,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:49,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:49,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:49,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435254538] [2023-11-22 17:13:49,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435254538] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:49,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:49,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:49,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510798322] [2023-11-22 17:13:49,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:49,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:49,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:49,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:49,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:49,266 INFO L87 Difference]: Start difference. First operand 6149 states and 8515 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:49,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:49,288 INFO L93 Difference]: Finished difference Result 8072 states and 11013 transitions. [2023-11-22 17:13:49,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:49,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2023-11-22 17:13:49,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:49,298 INFO L225 Difference]: With dead ends: 8072 [2023-11-22 17:13:49,298 INFO L226 Difference]: Without dead ends: 8072 [2023-11-22 17:13:49,298 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 [2023-11-22 17:13:49,298 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 47 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:49,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 163 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:49,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8072 states. [2023-11-22 17:13:49,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8072 to 8069. [2023-11-22 17:13:49,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8069 states, 8068 states have (on average 1.364774417451661) internal successors, (11011), 8068 states have internal predecessors, (11011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:49,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8069 states to 8069 states and 11011 transitions. [2023-11-22 17:13:49,393 INFO L78 Accepts]: Start accepts. Automaton has 8069 states and 11011 transitions. Word has length 25 [2023-11-22 17:13:49,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:49,393 INFO L495 AbstractCegarLoop]: Abstraction has 8069 states and 11011 transitions. [2023-11-22 17:13:49,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:49,394 INFO L276 IsEmpty]: Start isEmpty. Operand 8069 states and 11011 transitions. [2023-11-22 17:13:49,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-22 17:13:49,399 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:49,399 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] [2023-11-22 17:13:49,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-22 17:13:49,399 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:49,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:49,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1485734501, now seen corresponding path program 1 times [2023-11-22 17:13:49,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:49,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315952623] [2023-11-22 17:13:49,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:49,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:49,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:49,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:49,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315952623] [2023-11-22 17:13:49,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315952623] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:49,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:49,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:49,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335324662] [2023-11-22 17:13:49,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:49,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:49,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:49,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:49,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:49,414 INFO L87 Difference]: Start difference. First operand 8069 states and 11011 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:49,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:49,435 INFO L93 Difference]: Finished difference Result 8200 states and 11013 transitions. [2023-11-22 17:13:49,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:49,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2023-11-22 17:13:49,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:49,445 INFO L225 Difference]: With dead ends: 8200 [2023-11-22 17:13:49,445 INFO L226 Difference]: Without dead ends: 8200 [2023-11-22 17:13:49,445 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 [2023-11-22 17:13:49,446 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 49 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:49,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 148 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:49,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8200 states. [2023-11-22 17:13:49,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8200 to 8197. [2023-11-22 17:13:49,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8197 states, 8196 states have (on average 1.343460224499756) internal successors, (11011), 8196 states have internal predecessors, (11011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:49,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8197 states to 8197 states and 11011 transitions. [2023-11-22 17:13:49,582 INFO L78 Accepts]: Start accepts. Automaton has 8197 states and 11011 transitions. Word has length 26 [2023-11-22 17:13:49,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:49,582 INFO L495 AbstractCegarLoop]: Abstraction has 8197 states and 11011 transitions. [2023-11-22 17:13:49,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:49,583 INFO L276 IsEmpty]: Start isEmpty. Operand 8197 states and 11011 transitions. [2023-11-22 17:13:49,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-22 17:13:49,588 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:49,589 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] [2023-11-22 17:13:49,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-22 17:13:49,589 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:49,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:49,589 INFO L85 PathProgramCache]: Analyzing trace with hash 464666147, now seen corresponding path program 1 times [2023-11-22 17:13:49,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:49,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342178604] [2023-11-22 17:13:49,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:49,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:49,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:49,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:49,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342178604] [2023-11-22 17:13:49,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342178604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:49,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:49,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:49,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660055469] [2023-11-22 17:13:49,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:49,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:49,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:49,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:49,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:49,607 INFO L87 Difference]: Start difference. First operand 8197 states and 11011 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:49,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:49,637 INFO L93 Difference]: Finished difference Result 13832 states and 18565 transitions. [2023-11-22 17:13:49,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:49,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2023-11-22 17:13:49,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:49,656 INFO L225 Difference]: With dead ends: 13832 [2023-11-22 17:13:49,656 INFO L226 Difference]: Without dead ends: 13832 [2023-11-22 17:13:49,657 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 [2023-11-22 17:13:49,657 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 30 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 123 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 [2023-11-22 17:13:49,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 123 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:49,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13832 states. [2023-11-22 17:13:49,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13832 to 12293. [2023-11-22 17:13:49,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12293 states, 12292 states have (on average 1.3019036771884152) internal successors, (16003), 12292 states have internal predecessors, (16003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:49,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12293 states to 12293 states and 16003 transitions. [2023-11-22 17:13:49,873 INFO L78 Accepts]: Start accepts. Automaton has 12293 states and 16003 transitions. Word has length 26 [2023-11-22 17:13:49,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:49,873 INFO L495 AbstractCegarLoop]: Abstraction has 12293 states and 16003 transitions. [2023-11-22 17:13:49,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:49,873 INFO L276 IsEmpty]: Start isEmpty. Operand 12293 states and 16003 transitions. [2023-11-22 17:13:49,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-22 17:13:49,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:49,886 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] [2023-11-22 17:13:49,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-22 17:13:49,887 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:49,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:49,888 INFO L85 PathProgramCache]: Analyzing trace with hash -815197531, now seen corresponding path program 1 times [2023-11-22 17:13:49,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:49,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250981142] [2023-11-22 17:13:49,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:49,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:49,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:49,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:49,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250981142] [2023-11-22 17:13:49,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250981142] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:49,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:49,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:49,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942017447] [2023-11-22 17:13:49,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:49,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:49,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:49,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:49,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:49,912 INFO L87 Difference]: Start difference. First operand 12293 states and 16003 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:49,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:49,948 INFO L93 Difference]: Finished difference Result 15880 states and 20229 transitions. [2023-11-22 17:13:49,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:49,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2023-11-22 17:13:49,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:49,967 INFO L225 Difference]: With dead ends: 15880 [2023-11-22 17:13:49,968 INFO L226 Difference]: Without dead ends: 15880 [2023-11-22 17:13:49,968 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 [2023-11-22 17:13:49,968 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 46 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:49,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 164 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:49,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15880 states. [2023-11-22 17:13:50,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15880 to 15877. [2023-11-22 17:13:50,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15877 states, 15876 states have (on average 1.2740614764424287) internal successors, (20227), 15876 states have internal predecessors, (20227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:50,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15877 states to 15877 states and 20227 transitions. [2023-11-22 17:13:50,187 INFO L78 Accepts]: Start accepts. Automaton has 15877 states and 20227 transitions. Word has length 26 [2023-11-22 17:13:50,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:50,188 INFO L495 AbstractCegarLoop]: Abstraction has 15877 states and 20227 transitions. [2023-11-22 17:13:50,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:50,188 INFO L276 IsEmpty]: Start isEmpty. Operand 15877 states and 20227 transitions. [2023-11-22 17:13:50,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-22 17:13:50,199 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:50,199 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] [2023-11-22 17:13:50,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-22 17:13:50,199 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:50,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:50,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1526430681, now seen corresponding path program 1 times [2023-11-22 17:13:50,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:50,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144884905] [2023-11-22 17:13:50,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:50,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:50,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:50,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:50,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144884905] [2023-11-22 17:13:50,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144884905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:50,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:50,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:50,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132471356] [2023-11-22 17:13:50,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:50,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:50,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:50,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:50,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:50,218 INFO L87 Difference]: Start difference. First operand 15877 states and 20227 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:50,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:50,256 INFO L93 Difference]: Finished difference Result 16136 states and 20229 transitions. [2023-11-22 17:13:50,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:50,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2023-11-22 17:13:50,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:50,277 INFO L225 Difference]: With dead ends: 16136 [2023-11-22 17:13:50,277 INFO L226 Difference]: Without dead ends: 16136 [2023-11-22 17:13:50,278 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 [2023-11-22 17:13:50,278 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 48 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:50,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 144 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:50,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16136 states. [2023-11-22 17:13:50,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16136 to 16133. [2023-11-22 17:13:50,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16133 states, 16132 states have (on average 1.2538432928341186) internal successors, (20227), 16132 states have internal predecessors, (20227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:50,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16133 states to 16133 states and 20227 transitions. [2023-11-22 17:13:50,509 INFO L78 Accepts]: Start accepts. Automaton has 16133 states and 20227 transitions. Word has length 27 [2023-11-22 17:13:50,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:50,509 INFO L495 AbstractCegarLoop]: Abstraction has 16133 states and 20227 transitions. [2023-11-22 17:13:50,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:50,509 INFO L276 IsEmpty]: Start isEmpty. Operand 16133 states and 20227 transitions. [2023-11-22 17:13:50,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-22 17:13:50,520 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:50,521 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] [2023-11-22 17:13:50,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-22 17:13:50,521 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:50,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:50,521 INFO L85 PathProgramCache]: Analyzing trace with hash 505362327, now seen corresponding path program 1 times [2023-11-22 17:13:50,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:50,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59165303] [2023-11-22 17:13:50,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:50,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:50,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:50,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:50,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59165303] [2023-11-22 17:13:50,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59165303] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:50,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:50,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:50,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264257350] [2023-11-22 17:13:50,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:50,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:50,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:50,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:50,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:50,559 INFO L87 Difference]: Start difference. First operand 16133 states and 20227 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:50,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:50,711 INFO L93 Difference]: Finished difference Result 26632 states and 33029 transitions. [2023-11-22 17:13:50,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:50,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2023-11-22 17:13:50,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:50,750 INFO L225 Difference]: With dead ends: 26632 [2023-11-22 17:13:50,751 INFO L226 Difference]: Without dead ends: 26632 [2023-11-22 17:13:50,751 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 [2023-11-22 17:13:50,751 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 27 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 121 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 [2023-11-22 17:13:50,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 121 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:50,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26632 states. [2023-11-22 17:13:51,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26632 to 24581. [2023-11-22 17:13:51,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24581 states, 24580 states have (on average 1.2186737184703011) internal successors, (29955), 24580 states have internal predecessors, (29955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:51,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24581 states to 24581 states and 29955 transitions. [2023-11-22 17:13:51,088 INFO L78 Accepts]: Start accepts. Automaton has 24581 states and 29955 transitions. Word has length 27 [2023-11-22 17:13:51,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:51,088 INFO L495 AbstractCegarLoop]: Abstraction has 24581 states and 29955 transitions. [2023-11-22 17:13:51,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:51,089 INFO L276 IsEmpty]: Start isEmpty. Operand 24581 states and 29955 transitions. [2023-11-22 17:13:51,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-22 17:13:51,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:51,229 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] [2023-11-22 17:13:51,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-22 17:13:51,229 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:51,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:51,230 INFO L85 PathProgramCache]: Analyzing trace with hash -774501351, now seen corresponding path program 1 times [2023-11-22 17:13:51,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:51,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318738012] [2023-11-22 17:13:51,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:51,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:51,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:51,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:51,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318738012] [2023-11-22 17:13:51,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318738012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:51,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:51,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:51,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853265883] [2023-11-22 17:13:51,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:51,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:51,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:51,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:51,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:51,251 INFO L87 Difference]: Start difference. First operand 24581 states and 29955 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:51,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:51,310 INFO L93 Difference]: Finished difference Result 31240 states and 36869 transitions. [2023-11-22 17:13:51,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:51,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2023-11-22 17:13:51,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:51,350 INFO L225 Difference]: With dead ends: 31240 [2023-11-22 17:13:51,350 INFO L226 Difference]: Without dead ends: 31240 [2023-11-22 17:13:51,350 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 [2023-11-22 17:13:51,350 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 45 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:51,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 165 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:51,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31240 states. [2023-11-22 17:13:51,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31240 to 31237. [2023-11-22 17:13:51,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31237 states, 31236 states have (on average 1.1802727621974645) internal successors, (36867), 31236 states have internal predecessors, (36867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:51,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31237 states to 31237 states and 36867 transitions. [2023-11-22 17:13:51,799 INFO L78 Accepts]: Start accepts. Automaton has 31237 states and 36867 transitions. Word has length 27 [2023-11-22 17:13:51,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:51,799 INFO L495 AbstractCegarLoop]: Abstraction has 31237 states and 36867 transitions. [2023-11-22 17:13:51,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:51,800 INFO L276 IsEmpty]: Start isEmpty. Operand 31237 states and 36867 transitions. [2023-11-22 17:13:51,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-22 17:13:51,816 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:51,817 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] [2023-11-22 17:13:51,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-22 17:13:51,817 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:51,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:51,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1506944464, now seen corresponding path program 1 times [2023-11-22 17:13:51,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:51,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066093973] [2023-11-22 17:13:51,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:51,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:51,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:51,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:51,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066093973] [2023-11-22 17:13:51,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066093973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:51,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:51,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:51,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810019055] [2023-11-22 17:13:51,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:51,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:51,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:51,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:51,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:51,851 INFO L87 Difference]: Start difference. First operand 31237 states and 36867 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:51,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:51,979 INFO L93 Difference]: Finished difference Result 31752 states and 36869 transitions. [2023-11-22 17:13:51,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:51,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2023-11-22 17:13:51,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:52,036 INFO L225 Difference]: With dead ends: 31752 [2023-11-22 17:13:52,036 INFO L226 Difference]: Without dead ends: 31752 [2023-11-22 17:13:52,036 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 [2023-11-22 17:13:52,037 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 47 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:52,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 140 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:52,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31752 states. [2023-11-22 17:13:52,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31752 to 31749. [2023-11-22 17:13:52,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31749 states, 31748 states have (on average 1.1612385032128008) internal successors, (36867), 31748 states have internal predecessors, (36867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:52,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31749 states to 31749 states and 36867 transitions. [2023-11-22 17:13:52,745 INFO L78 Accepts]: Start accepts. Automaton has 31749 states and 36867 transitions. Word has length 28 [2023-11-22 17:13:52,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:52,745 INFO L495 AbstractCegarLoop]: Abstraction has 31749 states and 36867 transitions. [2023-11-22 17:13:52,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:52,746 INFO L276 IsEmpty]: Start isEmpty. Operand 31749 states and 36867 transitions. [2023-11-22 17:13:52,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-22 17:13:52,762 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:52,762 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] [2023-11-22 17:13:52,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-22 17:13:52,763 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:52,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:52,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1766954478, now seen corresponding path program 1 times [2023-11-22 17:13:52,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:52,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484544272] [2023-11-22 17:13:52,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:52,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:52,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:52,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:52,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484544272] [2023-11-22 17:13:52,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484544272] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:52,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:52,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:52,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798212040] [2023-11-22 17:13:52,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:52,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:52,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:52,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:52,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:52,779 INFO L87 Difference]: Start difference. First operand 31749 states and 36867 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:53,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:53,034 INFO L93 Difference]: Finished difference Result 61445 states and 67587 transitions. [2023-11-22 17:13:53,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:53,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2023-11-22 17:13:53,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:53,092 INFO L225 Difference]: With dead ends: 61445 [2023-11-22 17:13:53,093 INFO L226 Difference]: Without dead ends: 31749 [2023-11-22 17:13:53,094 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 [2023-11-22 17:13:53,094 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 43 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:53,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 137 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:53,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31749 states. [2023-11-22 17:13:53,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31749 to 31749. [2023-11-22 17:13:53,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31749 states, 31748 states have (on average 1.096730502708832) internal successors, (34819), 31748 states have internal predecessors, (34819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:53,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31749 states to 31749 states and 34819 transitions. [2023-11-22 17:13:53,614 INFO L78 Accepts]: Start accepts. Automaton has 31749 states and 34819 transitions. Word has length 28 [2023-11-22 17:13:53,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:53,614 INFO L495 AbstractCegarLoop]: Abstraction has 31749 states and 34819 transitions. [2023-11-22 17:13:53,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:53,615 INFO L276 IsEmpty]: Start isEmpty. Operand 31749 states and 34819 transitions. [2023-11-22 17:13:53,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-22 17:13:53,639 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 17:13:53,639 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] [2023-11-22 17:13:53,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-22 17:13:53,639 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-22 17:13:53,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 17:13:53,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1248149140, now seen corresponding path program 1 times [2023-11-22 17:13:53,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 17:13:53,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125547185] [2023-11-22 17:13:53,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 17:13:53,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 17:13:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 17:13:53,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 17:13:53,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 17:13:53,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125547185] [2023-11-22 17:13:53,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125547185] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 17:13:53,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 17:13:53,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 17:13:53,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256042966] [2023-11-22 17:13:53,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 17:13:53,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 17:13:53,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 17:13:53,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 17:13:53,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 17:13:53,657 INFO L87 Difference]: Start difference. First operand 31749 states and 34819 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:53,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 17:13:53,709 INFO L93 Difference]: Finished difference Result 31746 states and 33793 transitions. [2023-11-22 17:13:53,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 17:13:53,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2023-11-22 17:13:53,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 17:13:53,709 INFO L225 Difference]: With dead ends: 31746 [2023-11-22 17:13:53,710 INFO L226 Difference]: Without dead ends: 0 [2023-11-22 17:13:53,710 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 [2023-11-22 17:13:53,710 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 20 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 17:13:53,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 75 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 17:13:53,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-22 17:13:53,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-22 17:13:53,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:53,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-22 17:13:53,711 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2023-11-22 17:13:53,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 17:13:53,711 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-22 17:13:53,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 17:13:53,711 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-22 17:13:53,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-22 17:13:53,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2023-11-22 17:13:53,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2023-11-22 17:13:53,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-22 17:13:53,717 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 17:13:53,718 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-22 17:13:53,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 05:13:53 BoogieIcfgContainer [2023-11-22 17:13:53,720 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-22 17:13:53,720 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-22 17:13:53,720 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-22 17:13:53,720 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-22 17:13:53,721 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:13:47" (3/4) ... [2023-11-22 17:13:53,722 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-22 17:13:53,728 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-22 17:13:53,728 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-22 17:13:53,728 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-22 17:13:53,728 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-22 17:13:53,790 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-11-22 17:13:53,790 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2023-11-22 17:13:53,790 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-22 17:13:53,791 INFO L158 Benchmark]: Toolchain (without parser) took 7402.46ms. Allocated memory was 188.7MB in the beginning and 5.3GB in the end (delta: 5.1GB). Free memory was 118.4MB in the beginning and 4.8GB in the end (delta: -4.7GB). Peak memory consumption was 438.0MB. Max. memory is 16.1GB. [2023-11-22 17:13:53,791 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory is still 146.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-22 17:13:53,791 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.93ms. Allocated memory is still 188.7MB. Free memory was 118.3MB in the beginning and 156.4MB in the end (delta: -38.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-22 17:13:53,791 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.86ms. Allocated memory is still 188.7MB. Free memory was 156.4MB in the beginning and 155.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-22 17:13:53,791 INFO L158 Benchmark]: Boogie Preprocessor took 31.55ms. Allocated memory is still 188.7MB. Free memory was 155.3MB in the beginning and 153.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-22 17:13:53,791 INFO L158 Benchmark]: RCFGBuilder took 366.84ms. Allocated memory is still 188.7MB. Free memory was 153.2MB in the beginning and 136.6MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-22 17:13:53,792 INFO L158 Benchmark]: TraceAbstraction took 6614.35ms. Allocated memory was 188.7MB in the beginning and 5.3GB in the end (delta: 5.1GB). Free memory was 136.4MB in the beginning and 4.8GB in the end (delta: -4.7GB). Peak memory consumption was 451.0MB. Max. memory is 16.1GB. [2023-11-22 17:13:53,792 INFO L158 Benchmark]: Witness Printer took 70.07ms. Allocated memory is still 5.3GB. Free memory was 4.8GB in the beginning and 4.8GB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-22 17:13:53,793 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory is still 146.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.93ms. Allocated memory is still 188.7MB. Free memory was 118.3MB in the beginning and 156.4MB in the end (delta: -38.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.86ms. Allocated memory is still 188.7MB. Free memory was 156.4MB in the beginning and 155.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.55ms. Allocated memory is still 188.7MB. Free memory was 155.3MB in the beginning and 153.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 366.84ms. Allocated memory is still 188.7MB. Free memory was 153.2MB in the beginning and 136.6MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6614.35ms. Allocated memory was 188.7MB in the beginning and 5.3GB in the end (delta: 5.1GB). Free memory was 136.4MB in the beginning and 4.8GB in the end (delta: -4.7GB). Peak memory consumption was 451.0MB. Max. memory is 16.1GB. * Witness Printer took 70.07ms. Allocated memory is still 5.3GB. Free memory was 4.8GB in the beginning and 4.8GB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 6]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 33, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1494 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1494 mSDsluCounter, 4708 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1830 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 197 IncrementalHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 2878 mSDtfsCounter, 197 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31749occurred in iteration=31, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.4s AutomataMinimizationTime, 33 MinimizatonAttempts, 6205 StatesRemovedByMinimization, 29 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 729 NumberOfCodeBlocks, 729 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 696 ConstructedInterpolants, 0 QuantifiedInterpolants, 1507 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 33 InterpolantComputations, 33 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-22 17:13:53,814 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE