./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/locks/test_locks_11.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9323e538-b6ee-4ca2-85e1-f13cf13baf1b/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9323e538-b6ee-4ca2-85e1-f13cf13baf1b/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9323e538-b6ee-4ca2-85e1-f13cf13baf1b/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9323e538-b6ee-4ca2-85e1-f13cf13baf1b/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_11.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9323e538-b6ee-4ca2-85e1-f13cf13baf1b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9323e538-b6ee-4ca2-85e1-f13cf13baf1b/bin/uautomizer-verify-BQ2R08f2Ya --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 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:21:33,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:21:33,777 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9323e538-b6ee-4ca2-85e1-f13cf13baf1b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-29 04:21:33,783 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:21:33,783 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:21:33,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:21:33,808 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:21:33,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:21:33,810 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:21:33,810 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:21:33,811 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:21:33,811 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:21:33,812 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:21:33,812 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:21:33,813 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:21:33,813 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:21:33,814 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:21:33,814 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:21:33,815 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:21:33,815 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:21:33,816 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 04:21:33,816 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 04:21:33,817 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-29 04:21:33,817 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:21:33,818 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 04:21:33,818 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:21:33,818 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:21:33,819 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:21:33,819 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:21:33,820 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:21:33,820 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:21:33,821 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:21:33,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:21:33,822 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:21:33,822 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:21:33,822 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:21:33,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:21:33,823 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:21:33,823 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:21:33,823 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:21:33,823 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:21:33,824 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9323e538-b6ee-4ca2-85e1-f13cf13baf1b/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9323e538-b6ee-4ca2-85e1-f13cf13baf1b/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd9c6b82321d3b192dc5809ecc7ca6021855509a18ab1d23ca9eeb538976a0c0 [2023-11-29 04:21:34,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:21:34,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:21:34,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:21:34,064 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:21:34,065 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:21:34,066 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9323e538-b6ee-4ca2-85e1-f13cf13baf1b/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/locks/test_locks_11.c [2023-11-29 04:21:36,825 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:21:37,017 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:21:37,018 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9323e538-b6ee-4ca2-85e1-f13cf13baf1b/sv-benchmarks/c/locks/test_locks_11.c [2023-11-29 04:21:37,027 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9323e538-b6ee-4ca2-85e1-f13cf13baf1b/bin/uautomizer-verify-BQ2R08f2Ya/data/508139d35/af67e88de3bd4ecba2bb1be024c7ef9b/FLAG88ebd0d64 [2023-11-29 04:21:37,042 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9323e538-b6ee-4ca2-85e1-f13cf13baf1b/bin/uautomizer-verify-BQ2R08f2Ya/data/508139d35/af67e88de3bd4ecba2bb1be024c7ef9b [2023-11-29 04:21:37,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:21:37,046 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:21:37,048 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:21:37,048 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:21:37,054 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:21:37,054 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:21:37" (1/1) ... [2023-11-29 04:21:37,055 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8fbe33a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:37, skipping insertion in model container [2023-11-29 04:21:37,056 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:21:37" (1/1) ... [2023-11-29 04:21:37,083 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:21:37,251 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:21:37,262 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:21:37,285 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:21:37,299 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:21:37,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:37 WrapperNode [2023-11-29 04:21:37,299 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:21:37,300 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:21:37,301 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:21:37,301 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:21:37,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:37" (1/1) ... [2023-11-29 04:21:37,316 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:37" (1/1) ... [2023-11-29 04:21:37,339 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 161 [2023-11-29 04:21:37,340 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:21:37,340 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:21:37,341 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:21:37,341 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:21:37,352 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:37" (1/1) ... [2023-11-29 04:21:37,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:37" (1/1) ... [2023-11-29 04:21:37,354 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:37" (1/1) ... [2023-11-29 04:21:37,366 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 04:21:37,367 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:37" (1/1) ... [2023-11-29 04:21:37,367 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:37" (1/1) ... [2023-11-29 04:21:37,370 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:37" (1/1) ... [2023-11-29 04:21:37,374 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:37" (1/1) ... [2023-11-29 04:21:37,376 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:37" (1/1) ... [2023-11-29 04:21:37,377 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:37" (1/1) ... [2023-11-29 04:21:37,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:21:37,380 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:21:37,380 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:21:37,380 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:21:37,381 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:37" (1/1) ... [2023-11-29 04:21:37,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:21:37,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9323e538-b6ee-4ca2-85e1-f13cf13baf1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:21:37,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9323e538-b6ee-4ca2-85e1-f13cf13baf1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:21:37,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9323e538-b6ee-4ca2-85e1-f13cf13baf1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:21:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:21:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:21:37,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:21:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:21:37,525 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:21:37,527 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:21:37,732 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:21:37,761 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:21:37,761 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:21:37,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:21:37 BoogieIcfgContainer [2023-11-29 04:21:37,762 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:21:37,765 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:21:37,765 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:21:37,769 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:21:37,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:21:37" (1/3) ... [2023-11-29 04:21:37,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a6288b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:21:37, skipping insertion in model container [2023-11-29 04:21:37,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:21:37" (2/3) ... [2023-11-29 04:21:37,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a6288b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:21:37, skipping insertion in model container [2023-11-29 04:21:37,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:21:37" (3/3) ... [2023-11-29 04:21:37,772 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_11.c [2023-11-29 04:21:37,790 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:21:37,790 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 04:21:37,831 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:21:37,837 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;@789f4ba9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:21:37,837 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 04:21:37,841 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) [2023-11-29 04:21:37,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-29 04:21:37,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:37,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-29 04:21:37,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:37,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:37,851 INFO L85 PathProgramCache]: Analyzing trace with hash 7492822, now seen corresponding path program 1 times [2023-11-29 04:21:37,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:37,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2886407] [2023-11-29 04:21:37,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:37,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:38,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:38,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:38,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2886407] [2023-11-29 04:21:38,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2886407] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:38,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:38,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:21:38,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928610734] [2023-11-29 04:21:38,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:38,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:21:38,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:38,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:21:38,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:21:38,047 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) [2023-11-29 04:21:38,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:38,071 INFO L93 Difference]: Finished difference Result 43 states and 75 transitions. [2023-11-29 04:21:38,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:21:38,074 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 [2023-11-29 04:21:38,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:38,083 INFO L225 Difference]: With dead ends: 43 [2023-11-29 04:21:38,083 INFO L226 Difference]: Without dead ends: 42 [2023-11-29 04:21:38,085 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 [2023-11-29 04:21:38,089 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 [2023-11-29 04:21:38,090 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] [2023-11-29 04:21:38,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-29 04:21:38,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-11-29 04:21:38,122 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) [2023-11-29 04:21:38,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 74 transitions. [2023-11-29 04:21:38,124 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 74 transitions. Word has length 4 [2023-11-29 04:21:38,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:38,125 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 74 transitions. [2023-11-29 04:21:38,125 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) [2023-11-29 04:21:38,125 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 74 transitions. [2023-11-29 04:21:38,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 04:21:38,126 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:38,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 04:21:38,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:21:38,127 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:38,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:38,128 INFO L85 PathProgramCache]: Analyzing trace with hash 232151558, now seen corresponding path program 1 times [2023-11-29 04:21:38,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:38,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323233369] [2023-11-29 04:21:38,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:38,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:38,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:38,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:38,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323233369] [2023-11-29 04:21:38,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323233369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:38,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:38,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 04:21:38,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244996758] [2023-11-29 04:21:38,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:38,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:38,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:38,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:38,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:38,228 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) [2023-11-29 04:21:38,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:38,247 INFO L93 Difference]: Finished difference Result 41 states and 73 transitions. [2023-11-29 04:21:38,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:38,248 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 [2023-11-29 04:21:38,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:38,249 INFO L225 Difference]: With dead ends: 41 [2023-11-29 04:21:38,249 INFO L226 Difference]: Without dead ends: 39 [2023-11-29 04:21:38,250 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 [2023-11-29 04:21:38,251 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 [2023-11-29 04:21:38,252 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] [2023-11-29 04:21:38,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-29 04:21:38,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-29 04:21:38,257 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) [2023-11-29 04:21:38,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 71 transitions. [2023-11-29 04:21:38,258 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 71 transitions. Word has length 5 [2023-11-29 04:21:38,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:38,258 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 71 transitions. [2023-11-29 04:21:38,259 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) [2023-11-29 04:21:38,259 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 71 transitions. [2023-11-29 04:21:38,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 04:21:38,260 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:38,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:21:38,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 04:21:38,260 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:38,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:38,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1707449351, now seen corresponding path program 1 times [2023-11-29 04:21:38,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:38,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545140664] [2023-11-29 04:21:38,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:38,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:38,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:38,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:38,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545140664] [2023-11-29 04:21:38,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545140664] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:38,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:38,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:38,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598250182] [2023-11-29 04:21:38,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:38,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:38,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:38,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:38,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:38,333 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) [2023-11-29 04:21:38,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:38,356 INFO L93 Difference]: Finished difference Result 76 states and 138 transitions. [2023-11-29 04:21:38,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:38,357 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 [2023-11-29 04:21:38,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:38,358 INFO L225 Difference]: With dead ends: 76 [2023-11-29 04:21:38,359 INFO L226 Difference]: Without dead ends: 76 [2023-11-29 04:21:38,359 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 [2023-11-29 04:21:38,360 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 [2023-11-29 04:21:38,361 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] [2023-11-29 04:21:38,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-29 04:21:38,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 51. [2023-11-29 04:21:38,368 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) [2023-11-29 04:21:38,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 94 transitions. [2023-11-29 04:21:38,370 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 94 transitions. Word has length 18 [2023-11-29 04:21:38,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:38,371 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 94 transitions. [2023-11-29 04:21:38,371 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) [2023-11-29 04:21:38,371 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 94 transitions. [2023-11-29 04:21:38,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 04:21:38,372 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:38,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:21:38,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 04:21:38,373 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:38,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:38,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1307654267, now seen corresponding path program 1 times [2023-11-29 04:21:38,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:38,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491316074] [2023-11-29 04:21:38,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:38,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:38,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:38,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:38,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491316074] [2023-11-29 04:21:38,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491316074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:38,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:38,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:38,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059668732] [2023-11-29 04:21:38,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:38,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:38,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:38,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:38,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:38,434 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) [2023-11-29 04:21:38,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:38,454 INFO L93 Difference]: Finished difference Result 76 states and 136 transitions. [2023-11-29 04:21:38,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:38,455 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 [2023-11-29 04:21:38,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:38,456 INFO L225 Difference]: With dead ends: 76 [2023-11-29 04:21:38,456 INFO L226 Difference]: Without dead ends: 76 [2023-11-29 04:21:38,457 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 [2023-11-29 04:21:38,458 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 [2023-11-29 04:21:38,459 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] [2023-11-29 04:21:38,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-29 04:21:38,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 73. [2023-11-29 04:21:38,467 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) [2023-11-29 04:21:38,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 134 transitions. [2023-11-29 04:21:38,469 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 134 transitions. Word has length 18 [2023-11-29 04:21:38,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:38,470 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 134 transitions. [2023-11-29 04:21:38,470 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) [2023-11-29 04:21:38,470 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 134 transitions. [2023-11-29 04:21:38,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-29 04:21:38,471 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:38,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:21:38,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 04:21:38,472 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:38,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:38,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1384724885, now seen corresponding path program 1 times [2023-11-29 04:21:38,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:38,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282344126] [2023-11-29 04:21:38,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:38,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:38,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:38,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:38,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282344126] [2023-11-29 04:21:38,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282344126] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:38,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:38,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:38,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458492693] [2023-11-29 04:21:38,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:38,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:38,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:38,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:38,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:38,529 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) [2023-11-29 04:21:38,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:38,545 INFO L93 Difference]: Finished difference Result 79 states and 138 transitions. [2023-11-29 04:21:38,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:38,546 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 [2023-11-29 04:21:38,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:38,547 INFO L225 Difference]: With dead ends: 79 [2023-11-29 04:21:38,547 INFO L226 Difference]: Without dead ends: 79 [2023-11-29 04:21:38,547 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 [2023-11-29 04:21:38,549 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 [2023-11-29 04:21:38,549 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] [2023-11-29 04:21:38,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-29 04:21:38,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2023-11-29 04:21:38,556 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) [2023-11-29 04:21:38,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 136 transitions. [2023-11-29 04:21:38,558 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 136 transitions. Word has length 19 [2023-11-29 04:21:38,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:38,558 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 136 transitions. [2023-11-29 04:21:38,558 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) [2023-11-29 04:21:38,558 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 136 transitions. [2023-11-29 04:21:38,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-29 04:21:38,559 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:38,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:21:38,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 04:21:38,560 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:38,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:38,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1889174057, now seen corresponding path program 1 times [2023-11-29 04:21:38,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:38,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5810741] [2023-11-29 04:21:38,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:38,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:38,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:38,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:38,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5810741] [2023-11-29 04:21:38,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5810741] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:38,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:38,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:38,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216438272] [2023-11-29 04:21:38,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:38,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:38,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:38,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:38,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:38,605 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) [2023-11-29 04:21:38,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:38,621 INFO L93 Difference]: Finished difference Result 144 states and 259 transitions. [2023-11-29 04:21:38,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:38,622 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 [2023-11-29 04:21:38,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:38,623 INFO L225 Difference]: With dead ends: 144 [2023-11-29 04:21:38,624 INFO L226 Difference]: Without dead ends: 144 [2023-11-29 04:21:38,624 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 [2023-11-29 04:21:38,625 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 [2023-11-29 04:21:38,626 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] [2023-11-29 04:21:38,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-29 04:21:38,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 101. [2023-11-29 04:21:38,634 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) [2023-11-29 04:21:38,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 181 transitions. [2023-11-29 04:21:38,636 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 181 transitions. Word has length 19 [2023-11-29 04:21:38,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:38,636 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 181 transitions. [2023-11-29 04:21:38,636 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) [2023-11-29 04:21:38,637 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 181 transitions. [2023-11-29 04:21:38,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-29 04:21:38,638 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:38,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:21:38,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 04:21:38,639 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:38,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:38,639 INFO L85 PathProgramCache]: Analyzing trace with hash 609310379, now seen corresponding path program 1 times [2023-11-29 04:21:38,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:38,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607452661] [2023-11-29 04:21:38,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:38,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:38,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:38,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:38,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607452661] [2023-11-29 04:21:38,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607452661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:38,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:38,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:38,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5971809] [2023-11-29 04:21:38,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:38,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:38,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:38,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:38,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:38,679 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) [2023-11-29 04:21:38,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:38,694 INFO L93 Difference]: Finished difference Result 146 states and 257 transitions. [2023-11-29 04:21:38,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:38,695 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 [2023-11-29 04:21:38,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:38,696 INFO L225 Difference]: With dead ends: 146 [2023-11-29 04:21:38,696 INFO L226 Difference]: Without dead ends: 146 [2023-11-29 04:21:38,696 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 [2023-11-29 04:21:38,698 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 [2023-11-29 04:21:38,698 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] [2023-11-29 04:21:38,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-29 04:21:38,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 143. [2023-11-29 04:21:38,706 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) [2023-11-29 04:21:38,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 255 transitions. [2023-11-29 04:21:38,708 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 255 transitions. Word has length 19 [2023-11-29 04:21:38,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:38,708 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 255 transitions. [2023-11-29 04:21:38,708 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) [2023-11-29 04:21:38,709 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 255 transitions. [2023-11-29 04:21:38,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 04:21:38,710 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:38,710 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] [2023-11-29 04:21:38,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 04:21:38,710 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:38,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:38,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1558538362, now seen corresponding path program 1 times [2023-11-29 04:21:38,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:38,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361979489] [2023-11-29 04:21:38,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:38,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:38,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:38,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:38,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361979489] [2023-11-29 04:21:38,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361979489] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:38,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:38,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:38,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835247898] [2023-11-29 04:21:38,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:38,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:38,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:38,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:38,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:38,748 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) [2023-11-29 04:21:38,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:38,762 INFO L93 Difference]: Finished difference Result 148 states and 257 transitions. [2023-11-29 04:21:38,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:38,763 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 [2023-11-29 04:21:38,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:38,764 INFO L225 Difference]: With dead ends: 148 [2023-11-29 04:21:38,764 INFO L226 Difference]: Without dead ends: 148 [2023-11-29 04:21:38,764 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 [2023-11-29 04:21:38,765 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 [2023-11-29 04:21:38,766 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] [2023-11-29 04:21:38,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-29 04:21:38,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 145. [2023-11-29 04:21:38,773 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) [2023-11-29 04:21:38,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 255 transitions. [2023-11-29 04:21:38,774 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 255 transitions. Word has length 20 [2023-11-29 04:21:38,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:38,774 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 255 transitions. [2023-11-29 04:21:38,775 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) [2023-11-29 04:21:38,775 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 255 transitions. [2023-11-29 04:21:38,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 04:21:38,776 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:38,776 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] [2023-11-29 04:21:38,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 04:21:38,776 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:38,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:38,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1715360580, now seen corresponding path program 1 times [2023-11-29 04:21:38,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:38,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550870556] [2023-11-29 04:21:38,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:38,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:38,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:38,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:38,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:38,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550870556] [2023-11-29 04:21:38,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550870556] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:38,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:38,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:38,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029784288] [2023-11-29 04:21:38,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:38,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:38,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:38,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:38,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:38,810 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) [2023-11-29 04:21:38,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:38,826 INFO L93 Difference]: Finished difference Result 280 states and 485 transitions. [2023-11-29 04:21:38,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:38,826 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 [2023-11-29 04:21:38,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:38,828 INFO L225 Difference]: With dead ends: 280 [2023-11-29 04:21:38,829 INFO L226 Difference]: Without dead ends: 280 [2023-11-29 04:21:38,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:38,830 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 [2023-11-29 04:21:38,830 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] [2023-11-29 04:21:38,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-11-29 04:21:38,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 277. [2023-11-29 04:21:38,843 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) [2023-11-29 04:21:38,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 483 transitions. [2023-11-29 04:21:38,846 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 483 transitions. Word has length 20 [2023-11-29 04:21:38,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:38,846 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 483 transitions. [2023-11-29 04:21:38,846 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) [2023-11-29 04:21:38,846 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 483 transitions. [2023-11-29 04:21:38,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 04:21:38,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:38,848 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] [2023-11-29 04:21:38,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 04:21:38,849 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:38,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:38,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1299743038, now seen corresponding path program 1 times [2023-11-29 04:21:38,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:38,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190530936] [2023-11-29 04:21:38,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:38,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:38,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:38,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:38,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190530936] [2023-11-29 04:21:38,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190530936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:38,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:38,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:38,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026415207] [2023-11-29 04:21:38,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:38,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:38,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:38,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:38,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:38,901 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) [2023-11-29 04:21:38,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:38,916 INFO L93 Difference]: Finished difference Result 352 states and 617 transitions. [2023-11-29 04:21:38,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:38,916 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 [2023-11-29 04:21:38,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:38,919 INFO L225 Difference]: With dead ends: 352 [2023-11-29 04:21:38,919 INFO L226 Difference]: Without dead ends: 352 [2023-11-29 04:21:38,919 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 [2023-11-29 04:21:38,920 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 [2023-11-29 04:21:38,921 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] [2023-11-29 04:21:38,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-11-29 04:21:38,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 277. [2023-11-29 04:21:38,930 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) [2023-11-29 04:21:38,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 479 transitions. [2023-11-29 04:21:38,932 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 479 transitions. Word has length 20 [2023-11-29 04:21:38,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:38,932 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 479 transitions. [2023-11-29 04:21:38,932 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) [2023-11-29 04:21:38,933 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 479 transitions. [2023-11-29 04:21:38,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 04:21:38,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:38,935 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] [2023-11-29 04:21:38,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 04:21:38,935 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:38,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:38,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1643189014, now seen corresponding path program 1 times [2023-11-29 04:21:38,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:38,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011928884] [2023-11-29 04:21:38,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:38,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:38,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:38,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:38,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:38,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011928884] [2023-11-29 04:21:38,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011928884] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:38,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:38,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:38,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735152737] [2023-11-29 04:21:38,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:38,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:38,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:38,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:38,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:38,973 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) [2023-11-29 04:21:38,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:38,989 INFO L93 Difference]: Finished difference Result 516 states and 897 transitions. [2023-11-29 04:21:38,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:38,990 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 [2023-11-29 04:21:38,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:38,993 INFO L225 Difference]: With dead ends: 516 [2023-11-29 04:21:38,993 INFO L226 Difference]: Without dead ends: 516 [2023-11-29 04:21:38,994 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 [2023-11-29 04:21:38,995 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 [2023-11-29 04:21:38,995 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] [2023-11-29 04:21:38,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-11-29 04:21:39,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 385. [2023-11-29 04:21:39,009 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) [2023-11-29 04:21:39,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 655 transitions. [2023-11-29 04:21:39,011 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 655 transitions. Word has length 21 [2023-11-29 04:21:39,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:39,012 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 655 transitions. [2023-11-29 04:21:39,012 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) [2023-11-29 04:21:39,012 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 655 transitions. [2023-11-29 04:21:39,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 04:21:39,014 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:39,014 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] [2023-11-29 04:21:39,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 04:21:39,015 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:39,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:39,015 INFO L85 PathProgramCache]: Analyzing trace with hash 363325336, now seen corresponding path program 1 times [2023-11-29 04:21:39,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:39,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219236876] [2023-11-29 04:21:39,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:39,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:39,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:39,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:39,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219236876] [2023-11-29 04:21:39,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219236876] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:39,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:39,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:39,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419745661] [2023-11-29 04:21:39,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:39,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:39,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:39,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:39,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:39,048 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) [2023-11-29 04:21:39,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:39,065 INFO L93 Difference]: Finished difference Result 540 states and 909 transitions. [2023-11-29 04:21:39,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:39,066 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 [2023-11-29 04:21:39,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:39,069 INFO L225 Difference]: With dead ends: 540 [2023-11-29 04:21:39,069 INFO L226 Difference]: Without dead ends: 540 [2023-11-29 04:21:39,070 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 [2023-11-29 04:21:39,070 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 [2023-11-29 04:21:39,071 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] [2023-11-29 04:21:39,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2023-11-29 04:21:39,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 537. [2023-11-29 04:21:39,087 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) [2023-11-29 04:21:39,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 907 transitions. [2023-11-29 04:21:39,090 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 907 transitions. Word has length 21 [2023-11-29 04:21:39,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:39,090 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 907 transitions. [2023-11-29 04:21:39,091 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) [2023-11-29 04:21:39,091 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 907 transitions. [2023-11-29 04:21:39,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 04:21:39,092 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:39,092 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] [2023-11-29 04:21:39,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 04:21:39,093 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:39,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:39,093 INFO L85 PathProgramCache]: Analyzing trace with hash -594118961, now seen corresponding path program 1 times [2023-11-29 04:21:39,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:39,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372479989] [2023-11-29 04:21:39,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:39,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:39,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:39,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:39,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372479989] [2023-11-29 04:21:39,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372479989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:39,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:39,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:39,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485155089] [2023-11-29 04:21:39,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:39,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:39,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:39,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:39,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:39,124 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) [2023-11-29 04:21:39,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:39,138 INFO L93 Difference]: Finished difference Result 552 states and 917 transitions. [2023-11-29 04:21:39,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:39,138 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 [2023-11-29 04:21:39,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:39,142 INFO L225 Difference]: With dead ends: 552 [2023-11-29 04:21:39,142 INFO L226 Difference]: Without dead ends: 552 [2023-11-29 04:21:39,142 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 [2023-11-29 04:21:39,143 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 [2023-11-29 04:21:39,143 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] [2023-11-29 04:21:39,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2023-11-29 04:21:39,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 549. [2023-11-29 04:21:39,156 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) [2023-11-29 04:21:39,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 915 transitions. [2023-11-29 04:21:39,158 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 915 transitions. Word has length 22 [2023-11-29 04:21:39,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:39,159 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 915 transitions. [2023-11-29 04:21:39,159 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) [2023-11-29 04:21:39,159 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 915 transitions. [2023-11-29 04:21:39,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 04:21:39,160 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:39,160 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] [2023-11-29 04:21:39,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 04:21:39,160 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:39,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:39,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1615187315, now seen corresponding path program 1 times [2023-11-29 04:21:39,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:39,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545119550] [2023-11-29 04:21:39,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:39,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:39,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:39,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:39,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545119550] [2023-11-29 04:21:39,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545119550] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:39,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:39,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:39,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596897338] [2023-11-29 04:21:39,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:39,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:39,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:39,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:39,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:39,189 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) [2023-11-29 04:21:39,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:39,206 INFO L93 Difference]: Finished difference Result 1000 states and 1677 transitions. [2023-11-29 04:21:39,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:39,207 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 [2023-11-29 04:21:39,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:39,212 INFO L225 Difference]: With dead ends: 1000 [2023-11-29 04:21:39,213 INFO L226 Difference]: Without dead ends: 1000 [2023-11-29 04:21:39,213 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 [2023-11-29 04:21:39,213 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 [2023-11-29 04:21:39,214 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] [2023-11-29 04:21:39,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2023-11-29 04:21:39,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 773. [2023-11-29 04:21:39,233 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) [2023-11-29 04:21:39,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1259 transitions. [2023-11-29 04:21:39,237 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1259 transitions. Word has length 22 [2023-11-29 04:21:39,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:39,237 INFO L495 AbstractCegarLoop]: Abstraction has 773 states and 1259 transitions. [2023-11-29 04:21:39,237 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) [2023-11-29 04:21:39,237 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1259 transitions. [2023-11-29 04:21:39,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 04:21:39,238 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:39,239 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] [2023-11-29 04:21:39,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 04:21:39,239 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:39,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:39,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1399916303, now seen corresponding path program 1 times [2023-11-29 04:21:39,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:39,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713306600] [2023-11-29 04:21:39,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:39,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:39,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:39,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:39,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713306600] [2023-11-29 04:21:39,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713306600] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:39,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:39,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:39,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878300896] [2023-11-29 04:21:39,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:39,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:39,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:39,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:39,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:39,267 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) [2023-11-29 04:21:39,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:39,285 INFO L93 Difference]: Finished difference Result 1064 states and 1717 transitions. [2023-11-29 04:21:39,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:39,285 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 [2023-11-29 04:21:39,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:39,291 INFO L225 Difference]: With dead ends: 1064 [2023-11-29 04:21:39,292 INFO L226 Difference]: Without dead ends: 1064 [2023-11-29 04:21:39,292 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 [2023-11-29 04:21:39,293 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 [2023-11-29 04:21:39,293 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] [2023-11-29 04:21:39,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2023-11-29 04:21:39,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1061. [2023-11-29 04:21:39,315 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) [2023-11-29 04:21:39,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1715 transitions. [2023-11-29 04:21:39,320 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1715 transitions. Word has length 22 [2023-11-29 04:21:39,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:39,320 INFO L495 AbstractCegarLoop]: Abstraction has 1061 states and 1715 transitions. [2023-11-29 04:21:39,320 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) [2023-11-29 04:21:39,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1715 transitions. [2023-11-29 04:21:39,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-29 04:21:39,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:39,322 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] [2023-11-29 04:21:39,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 04:21:39,322 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:39,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:39,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1475440515, now seen corresponding path program 1 times [2023-11-29 04:21:39,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:39,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478152691] [2023-11-29 04:21:39,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:39,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:39,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:39,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:39,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478152691] [2023-11-29 04:21:39,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478152691] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:39,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:39,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:39,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974295839] [2023-11-29 04:21:39,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:39,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:39,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:39,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:39,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:39,361 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) [2023-11-29 04:21:39,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:39,377 INFO L93 Difference]: Finished difference Result 1080 states and 1717 transitions. [2023-11-29 04:21:39,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:39,378 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 [2023-11-29 04:21:39,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:39,383 INFO L225 Difference]: With dead ends: 1080 [2023-11-29 04:21:39,383 INFO L226 Difference]: Without dead ends: 1080 [2023-11-29 04:21:39,383 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 [2023-11-29 04:21:39,384 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 [2023-11-29 04:21:39,384 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] [2023-11-29 04:21:39,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2023-11-29 04:21:39,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1077. [2023-11-29 04:21:39,399 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) [2023-11-29 04:21:39,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1715 transitions. [2023-11-29 04:21:39,403 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1715 transitions. Word has length 23 [2023-11-29 04:21:39,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:39,403 INFO L495 AbstractCegarLoop]: Abstraction has 1077 states and 1715 transitions. [2023-11-29 04:21:39,403 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) [2023-11-29 04:21:39,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1715 transitions. [2023-11-29 04:21:39,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-29 04:21:39,405 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:39,405 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] [2023-11-29 04:21:39,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 04:21:39,405 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:39,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:39,405 INFO L85 PathProgramCache]: Analyzing trace with hash 454372161, now seen corresponding path program 1 times [2023-11-29 04:21:39,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:39,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878194861] [2023-11-29 04:21:39,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:39,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:39,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:39,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:39,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878194861] [2023-11-29 04:21:39,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878194861] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:39,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:39,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:39,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673579233] [2023-11-29 04:21:39,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:39,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:39,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:39,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:39,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:39,430 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) [2023-11-29 04:21:39,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:39,449 INFO L93 Difference]: Finished difference Result 1928 states and 3093 transitions. [2023-11-29 04:21:39,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:39,449 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 [2023-11-29 04:21:39,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:39,457 INFO L225 Difference]: With dead ends: 1928 [2023-11-29 04:21:39,457 INFO L226 Difference]: Without dead ends: 1928 [2023-11-29 04:21:39,457 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 [2023-11-29 04:21:39,458 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 [2023-11-29 04:21:39,458 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] [2023-11-29 04:21:39,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2023-11-29 04:21:39,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1541. [2023-11-29 04:21:39,484 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) [2023-11-29 04:21:39,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 2387 transitions. [2023-11-29 04:21:39,489 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 2387 transitions. Word has length 23 [2023-11-29 04:21:39,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:39,489 INFO L495 AbstractCegarLoop]: Abstraction has 1541 states and 2387 transitions. [2023-11-29 04:21:39,489 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) [2023-11-29 04:21:39,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 2387 transitions. [2023-11-29 04:21:39,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-29 04:21:39,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:39,491 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] [2023-11-29 04:21:39,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 04:21:39,491 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:39,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:39,492 INFO L85 PathProgramCache]: Analyzing trace with hash -825491517, now seen corresponding path program 1 times [2023-11-29 04:21:39,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:39,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479910164] [2023-11-29 04:21:39,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:39,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:39,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:39,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:39,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479910164] [2023-11-29 04:21:39,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479910164] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:39,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:39,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:39,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109518104] [2023-11-29 04:21:39,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:39,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:39,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:39,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:39,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:39,512 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) [2023-11-29 04:21:39,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:39,533 INFO L93 Difference]: Finished difference Result 2088 states and 3205 transitions. [2023-11-29 04:21:39,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:39,534 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 [2023-11-29 04:21:39,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:39,542 INFO L225 Difference]: With dead ends: 2088 [2023-11-29 04:21:39,543 INFO L226 Difference]: Without dead ends: 2088 [2023-11-29 04:21:39,543 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 [2023-11-29 04:21:39,543 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 [2023-11-29 04:21:39,544 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] [2023-11-29 04:21:39,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2023-11-29 04:21:39,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 2085. [2023-11-29 04:21:39,574 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) [2023-11-29 04:21:39,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 3203 transitions. [2023-11-29 04:21:39,580 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 3203 transitions. Word has length 23 [2023-11-29 04:21:39,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:39,580 INFO L495 AbstractCegarLoop]: Abstraction has 2085 states and 3203 transitions. [2023-11-29 04:21:39,580 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) [2023-11-29 04:21:39,581 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 3203 transitions. [2023-11-29 04:21:39,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 04:21:39,582 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:39,582 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] [2023-11-29 04:21:39,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 04:21:39,583 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:39,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:39,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1207285402, now seen corresponding path program 1 times [2023-11-29 04:21:39,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:39,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010075509] [2023-11-29 04:21:39,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:39,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:39,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:39,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:39,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010075509] [2023-11-29 04:21:39,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010075509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:39,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:39,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:39,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616879555] [2023-11-29 04:21:39,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:39,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:39,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:39,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:39,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:39,605 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) [2023-11-29 04:21:39,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:39,624 INFO L93 Difference]: Finished difference Result 2120 states and 3205 transitions. [2023-11-29 04:21:39,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:39,624 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 [2023-11-29 04:21:39,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:39,633 INFO L225 Difference]: With dead ends: 2120 [2023-11-29 04:21:39,633 INFO L226 Difference]: Without dead ends: 2120 [2023-11-29 04:21:39,633 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 [2023-11-29 04:21:39,633 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 [2023-11-29 04:21:39,634 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] [2023-11-29 04:21:39,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2023-11-29 04:21:39,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 2117. [2023-11-29 04:21:39,663 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) [2023-11-29 04:21:39,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 3203 transitions. [2023-11-29 04:21:39,669 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 3203 transitions. Word has length 24 [2023-11-29 04:21:39,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:39,670 INFO L495 AbstractCegarLoop]: Abstraction has 2117 states and 3203 transitions. [2023-11-29 04:21:39,670 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) [2023-11-29 04:21:39,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 3203 transitions. [2023-11-29 04:21:39,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 04:21:39,672 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:39,672 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] [2023-11-29 04:21:39,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 04:21:39,672 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:39,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:39,673 INFO L85 PathProgramCache]: Analyzing trace with hash 186217048, now seen corresponding path program 1 times [2023-11-29 04:21:39,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:39,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493279746] [2023-11-29 04:21:39,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:39,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:39,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:39,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:39,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493279746] [2023-11-29 04:21:39,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493279746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:39,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:39,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:39,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261731490] [2023-11-29 04:21:39,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:39,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:39,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:39,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:39,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:39,695 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) [2023-11-29 04:21:39,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:39,719 INFO L93 Difference]: Finished difference Result 3720 states and 5669 transitions. [2023-11-29 04:21:39,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:39,719 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 [2023-11-29 04:21:39,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:39,733 INFO L225 Difference]: With dead ends: 3720 [2023-11-29 04:21:39,734 INFO L226 Difference]: Without dead ends: 3720 [2023-11-29 04:21:39,734 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 [2023-11-29 04:21:39,734 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 [2023-11-29 04:21:39,735 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] [2023-11-29 04:21:39,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3720 states. [2023-11-29 04:21:39,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3720 to 3077. [2023-11-29 04:21:39,797 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) [2023-11-29 04:21:39,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3077 states to 3077 states and 4515 transitions. [2023-11-29 04:21:39,805 INFO L78 Accepts]: Start accepts. Automaton has 3077 states and 4515 transitions. Word has length 24 [2023-11-29 04:21:39,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:39,806 INFO L495 AbstractCegarLoop]: Abstraction has 3077 states and 4515 transitions. [2023-11-29 04:21:39,806 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) [2023-11-29 04:21:39,806 INFO L276 IsEmpty]: Start isEmpty. Operand 3077 states and 4515 transitions. [2023-11-29 04:21:39,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 04:21:39,809 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:39,809 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] [2023-11-29 04:21:39,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 04:21:39,809 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:39,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:39,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1093646630, now seen corresponding path program 1 times [2023-11-29 04:21:39,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:39,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754356372] [2023-11-29 04:21:39,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:39,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:39,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:39,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:39,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754356372] [2023-11-29 04:21:39,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754356372] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:39,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:39,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:39,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299033594] [2023-11-29 04:21:39,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:39,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:39,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:39,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:39,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:39,832 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) [2023-11-29 04:21:39,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:39,856 INFO L93 Difference]: Finished difference Result 4104 states and 5957 transitions. [2023-11-29 04:21:39,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:39,857 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 [2023-11-29 04:21:39,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:39,872 INFO L225 Difference]: With dead ends: 4104 [2023-11-29 04:21:39,872 INFO L226 Difference]: Without dead ends: 4104 [2023-11-29 04:21:39,873 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 [2023-11-29 04:21:39,873 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 [2023-11-29 04:21:39,874 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] [2023-11-29 04:21:39,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4104 states. [2023-11-29 04:21:39,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4104 to 4101. [2023-11-29 04:21:39,931 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) [2023-11-29 04:21:39,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4101 states to 4101 states and 5955 transitions. [2023-11-29 04:21:39,942 INFO L78 Accepts]: Start accepts. Automaton has 4101 states and 5955 transitions. Word has length 24 [2023-11-29 04:21:39,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:39,942 INFO L495 AbstractCegarLoop]: Abstraction has 4101 states and 5955 transitions. [2023-11-29 04:21:39,942 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) [2023-11-29 04:21:39,942 INFO L276 IsEmpty]: Start isEmpty. Operand 4101 states and 5955 transitions. [2023-11-29 04:21:39,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 04:21:39,945 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:39,945 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] [2023-11-29 04:21:39,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 04:21:39,946 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:39,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:39,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1484422062, now seen corresponding path program 1 times [2023-11-29 04:21:39,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:39,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465731113] [2023-11-29 04:21:39,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:39,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:39,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:39,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:39,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465731113] [2023-11-29 04:21:39,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465731113] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:39,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:39,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:39,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132095399] [2023-11-29 04:21:39,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:39,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:39,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:39,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:39,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:39,967 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) [2023-11-29 04:21:39,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:39,992 INFO L93 Difference]: Finished difference Result 4168 states and 5957 transitions. [2023-11-29 04:21:39,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:39,995 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 [2023-11-29 04:21:39,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:40,012 INFO L225 Difference]: With dead ends: 4168 [2023-11-29 04:21:40,012 INFO L226 Difference]: Without dead ends: 4168 [2023-11-29 04:21:40,012 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 [2023-11-29 04:21:40,013 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 [2023-11-29 04:21:40,013 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] [2023-11-29 04:21:40,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4168 states. [2023-11-29 04:21:40,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4168 to 4165. [2023-11-29 04:21:40,099 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) [2023-11-29 04:21:40,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4165 states to 4165 states and 5955 transitions. [2023-11-29 04:21:40,109 INFO L78 Accepts]: Start accepts. Automaton has 4165 states and 5955 transitions. Word has length 25 [2023-11-29 04:21:40,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:40,109 INFO L495 AbstractCegarLoop]: Abstraction has 4165 states and 5955 transitions. [2023-11-29 04:21:40,110 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) [2023-11-29 04:21:40,110 INFO L276 IsEmpty]: Start isEmpty. Operand 4165 states and 5955 transitions. [2023-11-29 04:21:40,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 04:21:40,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:40,114 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] [2023-11-29 04:21:40,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 04:21:40,114 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:40,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:40,115 INFO L85 PathProgramCache]: Analyzing trace with hash 463353708, now seen corresponding path program 1 times [2023-11-29 04:21:40,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:40,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566314622] [2023-11-29 04:21:40,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:40,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:40,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:40,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:40,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566314622] [2023-11-29 04:21:40,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566314622] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:40,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:40,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:40,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48683087] [2023-11-29 04:21:40,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:40,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:40,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:40,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:40,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:40,135 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) [2023-11-29 04:21:40,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:40,165 INFO L93 Difference]: Finished difference Result 7176 states and 10309 transitions. [2023-11-29 04:21:40,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:40,166 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 [2023-11-29 04:21:40,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:40,179 INFO L225 Difference]: With dead ends: 7176 [2023-11-29 04:21:40,179 INFO L226 Difference]: Without dead ends: 7176 [2023-11-29 04:21:40,180 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 [2023-11-29 04:21:40,180 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 [2023-11-29 04:21:40,180 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] [2023-11-29 04:21:40,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7176 states. [2023-11-29 04:21:40,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7176 to 6149. [2023-11-29 04:21:40,250 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) [2023-11-29 04:21:40,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6149 states to 6149 states and 8515 transitions. [2023-11-29 04:21:40,265 INFO L78 Accepts]: Start accepts. Automaton has 6149 states and 8515 transitions. Word has length 25 [2023-11-29 04:21:40,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:40,265 INFO L495 AbstractCegarLoop]: Abstraction has 6149 states and 8515 transitions. [2023-11-29 04:21:40,265 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) [2023-11-29 04:21:40,265 INFO L276 IsEmpty]: Start isEmpty. Operand 6149 states and 8515 transitions. [2023-11-29 04:21:40,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 04:21:40,271 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:40,271 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] [2023-11-29 04:21:40,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 04:21:40,271 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:40,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:40,272 INFO L85 PathProgramCache]: Analyzing trace with hash -816509970, now seen corresponding path program 1 times [2023-11-29 04:21:40,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:40,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063616238] [2023-11-29 04:21:40,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:40,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:40,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:40,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:40,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063616238] [2023-11-29 04:21:40,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063616238] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:40,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:40,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:40,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766572362] [2023-11-29 04:21:40,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:40,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:40,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:40,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:40,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:40,290 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) [2023-11-29 04:21:40,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:40,321 INFO L93 Difference]: Finished difference Result 8072 states and 11013 transitions. [2023-11-29 04:21:40,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:40,321 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 [2023-11-29 04:21:40,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:40,332 INFO L225 Difference]: With dead ends: 8072 [2023-11-29 04:21:40,332 INFO L226 Difference]: Without dead ends: 8072 [2023-11-29 04:21:40,332 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 [2023-11-29 04:21:40,332 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 [2023-11-29 04:21:40,333 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] [2023-11-29 04:21:40,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8072 states. [2023-11-29 04:21:40,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8072 to 8069. [2023-11-29 04:21:40,464 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) [2023-11-29 04:21:40,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8069 states to 8069 states and 11011 transitions. [2023-11-29 04:21:40,477 INFO L78 Accepts]: Start accepts. Automaton has 8069 states and 11011 transitions. Word has length 25 [2023-11-29 04:21:40,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:40,477 INFO L495 AbstractCegarLoop]: Abstraction has 8069 states and 11011 transitions. [2023-11-29 04:21:40,477 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) [2023-11-29 04:21:40,477 INFO L276 IsEmpty]: Start isEmpty. Operand 8069 states and 11011 transitions. [2023-11-29 04:21:40,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 04:21:40,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:40,484 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] [2023-11-29 04:21:40,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 04:21:40,484 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:40,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:40,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1485734501, now seen corresponding path program 1 times [2023-11-29 04:21:40,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:40,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78484640] [2023-11-29 04:21:40,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:40,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:40,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:40,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:40,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78484640] [2023-11-29 04:21:40,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78484640] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:40,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:40,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:40,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224009355] [2023-11-29 04:21:40,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:40,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:40,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:40,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:40,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:40,506 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) [2023-11-29 04:21:40,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:40,533 INFO L93 Difference]: Finished difference Result 8200 states and 11013 transitions. [2023-11-29 04:21:40,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:40,534 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 [2023-11-29 04:21:40,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:40,544 INFO L225 Difference]: With dead ends: 8200 [2023-11-29 04:21:40,544 INFO L226 Difference]: Without dead ends: 8200 [2023-11-29 04:21:40,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:40,545 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 [2023-11-29 04:21:40,545 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] [2023-11-29 04:21:40,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8200 states. [2023-11-29 04:21:40,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8200 to 8197. [2023-11-29 04:21:40,665 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) [2023-11-29 04:21:40,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8197 states to 8197 states and 11011 transitions. [2023-11-29 04:21:40,677 INFO L78 Accepts]: Start accepts. Automaton has 8197 states and 11011 transitions. Word has length 26 [2023-11-29 04:21:40,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:40,678 INFO L495 AbstractCegarLoop]: Abstraction has 8197 states and 11011 transitions. [2023-11-29 04:21:40,678 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) [2023-11-29 04:21:40,678 INFO L276 IsEmpty]: Start isEmpty. Operand 8197 states and 11011 transitions. [2023-11-29 04:21:40,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 04:21:40,684 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:40,684 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] [2023-11-29 04:21:40,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 04:21:40,684 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:40,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:40,685 INFO L85 PathProgramCache]: Analyzing trace with hash 464666147, now seen corresponding path program 1 times [2023-11-29 04:21:40,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:40,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764398064] [2023-11-29 04:21:40,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:40,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:40,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:40,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:40,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764398064] [2023-11-29 04:21:40,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764398064] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:40,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:40,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:40,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221790357] [2023-11-29 04:21:40,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:40,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:40,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:40,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:40,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:40,706 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) [2023-11-29 04:21:40,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:40,742 INFO L93 Difference]: Finished difference Result 13832 states and 18565 transitions. [2023-11-29 04:21:40,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:40,743 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 [2023-11-29 04:21:40,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:40,760 INFO L225 Difference]: With dead ends: 13832 [2023-11-29 04:21:40,760 INFO L226 Difference]: Without dead ends: 13832 [2023-11-29 04:21:40,761 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 [2023-11-29 04:21:40,761 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 [2023-11-29 04:21:40,761 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] [2023-11-29 04:21:40,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13832 states. [2023-11-29 04:21:40,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13832 to 12293. [2023-11-29 04:21:40,908 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) [2023-11-29 04:21:40,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12293 states to 12293 states and 16003 transitions. [2023-11-29 04:21:40,925 INFO L78 Accepts]: Start accepts. Automaton has 12293 states and 16003 transitions. Word has length 26 [2023-11-29 04:21:40,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:40,925 INFO L495 AbstractCegarLoop]: Abstraction has 12293 states and 16003 transitions. [2023-11-29 04:21:40,925 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) [2023-11-29 04:21:40,925 INFO L276 IsEmpty]: Start isEmpty. Operand 12293 states and 16003 transitions. [2023-11-29 04:21:40,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 04:21:40,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:40,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:21:40,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 04:21:40,937 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:40,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:40,938 INFO L85 PathProgramCache]: Analyzing trace with hash -815197531, now seen corresponding path program 1 times [2023-11-29 04:21:40,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:40,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609868327] [2023-11-29 04:21:40,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:40,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:40,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:40,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:40,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609868327] [2023-11-29 04:21:40,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609868327] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:40,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:40,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:40,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701505781] [2023-11-29 04:21:40,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:40,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:40,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:40,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:40,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:40,959 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) [2023-11-29 04:21:40,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:40,996 INFO L93 Difference]: Finished difference Result 15880 states and 20229 transitions. [2023-11-29 04:21:40,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:40,997 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 [2023-11-29 04:21:40,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:41,016 INFO L225 Difference]: With dead ends: 15880 [2023-11-29 04:21:41,016 INFO L226 Difference]: Without dead ends: 15880 [2023-11-29 04:21:41,016 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 [2023-11-29 04:21:41,016 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 [2023-11-29 04:21:41,017 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] [2023-11-29 04:21:41,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15880 states. [2023-11-29 04:21:41,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15880 to 15877. [2023-11-29 04:21:41,240 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) [2023-11-29 04:21:41,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15877 states to 15877 states and 20227 transitions. [2023-11-29 04:21:41,266 INFO L78 Accepts]: Start accepts. Automaton has 15877 states and 20227 transitions. Word has length 26 [2023-11-29 04:21:41,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:41,266 INFO L495 AbstractCegarLoop]: Abstraction has 15877 states and 20227 transitions. [2023-11-29 04:21:41,266 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) [2023-11-29 04:21:41,266 INFO L276 IsEmpty]: Start isEmpty. Operand 15877 states and 20227 transitions. [2023-11-29 04:21:41,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 04:21:41,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:41,283 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] [2023-11-29 04:21:41,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 04:21:41,283 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:41,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:41,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1526430681, now seen corresponding path program 1 times [2023-11-29 04:21:41,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:41,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952927830] [2023-11-29 04:21:41,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:41,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:41,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:41,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:41,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952927830] [2023-11-29 04:21:41,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952927830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:41,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:41,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:41,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946567448] [2023-11-29 04:21:41,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:41,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:41,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:41,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:41,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:41,308 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) [2023-11-29 04:21:41,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:41,359 INFO L93 Difference]: Finished difference Result 16136 states and 20229 transitions. [2023-11-29 04:21:41,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:41,359 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 [2023-11-29 04:21:41,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:41,381 INFO L225 Difference]: With dead ends: 16136 [2023-11-29 04:21:41,381 INFO L226 Difference]: Without dead ends: 16136 [2023-11-29 04:21:41,381 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 [2023-11-29 04:21:41,382 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 [2023-11-29 04:21:41,382 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] [2023-11-29 04:21:41,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16136 states. [2023-11-29 04:21:41,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16136 to 16133. [2023-11-29 04:21:41,659 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) [2023-11-29 04:21:41,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16133 states to 16133 states and 20227 transitions. [2023-11-29 04:21:41,678 INFO L78 Accepts]: Start accepts. Automaton has 16133 states and 20227 transitions. Word has length 27 [2023-11-29 04:21:41,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:41,678 INFO L495 AbstractCegarLoop]: Abstraction has 16133 states and 20227 transitions. [2023-11-29 04:21:41,678 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) [2023-11-29 04:21:41,678 INFO L276 IsEmpty]: Start isEmpty. Operand 16133 states and 20227 transitions. [2023-11-29 04:21:41,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 04:21:41,690 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:41,691 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] [2023-11-29 04:21:41,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 04:21:41,691 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:41,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:41,691 INFO L85 PathProgramCache]: Analyzing trace with hash 505362327, now seen corresponding path program 1 times [2023-11-29 04:21:41,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:41,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436312484] [2023-11-29 04:21:41,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:41,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:41,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:41,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:41,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436312484] [2023-11-29 04:21:41,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436312484] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:41,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:41,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:41,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338132298] [2023-11-29 04:21:41,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:41,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:41,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:41,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:41,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:41,712 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) [2023-11-29 04:21:41,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:41,766 INFO L93 Difference]: Finished difference Result 26632 states and 33029 transitions. [2023-11-29 04:21:41,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:41,766 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 [2023-11-29 04:21:41,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:41,800 INFO L225 Difference]: With dead ends: 26632 [2023-11-29 04:21:41,801 INFO L226 Difference]: Without dead ends: 26632 [2023-11-29 04:21:41,801 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 [2023-11-29 04:21:41,801 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 [2023-11-29 04:21:41,802 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] [2023-11-29 04:21:41,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26632 states. [2023-11-29 04:21:42,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26632 to 24581. [2023-11-29 04:21:42,203 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) [2023-11-29 04:21:42,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24581 states to 24581 states and 29955 transitions. [2023-11-29 04:21:42,259 INFO L78 Accepts]: Start accepts. Automaton has 24581 states and 29955 transitions. Word has length 27 [2023-11-29 04:21:42,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:42,259 INFO L495 AbstractCegarLoop]: Abstraction has 24581 states and 29955 transitions. [2023-11-29 04:21:42,259 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) [2023-11-29 04:21:42,260 INFO L276 IsEmpty]: Start isEmpty. Operand 24581 states and 29955 transitions. [2023-11-29 04:21:42,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 04:21:42,295 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:42,295 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] [2023-11-29 04:21:42,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 04:21:42,296 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:42,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:42,296 INFO L85 PathProgramCache]: Analyzing trace with hash -774501351, now seen corresponding path program 1 times [2023-11-29 04:21:42,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:42,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224527323] [2023-11-29 04:21:42,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:42,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:42,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:42,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:42,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224527323] [2023-11-29 04:21:42,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224527323] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:42,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:42,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:42,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232514114] [2023-11-29 04:21:42,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:42,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:42,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:42,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:42,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:42,327 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) [2023-11-29 04:21:42,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:42,440 INFO L93 Difference]: Finished difference Result 31240 states and 36869 transitions. [2023-11-29 04:21:42,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:42,440 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 [2023-11-29 04:21:42,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:42,492 INFO L225 Difference]: With dead ends: 31240 [2023-11-29 04:21:42,492 INFO L226 Difference]: Without dead ends: 31240 [2023-11-29 04:21:42,492 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 [2023-11-29 04:21:42,493 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 [2023-11-29 04:21:42,493 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] [2023-11-29 04:21:42,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31240 states. [2023-11-29 04:21:42,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31240 to 31237. [2023-11-29 04:21:42,852 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) [2023-11-29 04:21:42,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31237 states to 31237 states and 36867 transitions. [2023-11-29 04:21:42,900 INFO L78 Accepts]: Start accepts. Automaton has 31237 states and 36867 transitions. Word has length 27 [2023-11-29 04:21:42,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:42,900 INFO L495 AbstractCegarLoop]: Abstraction has 31237 states and 36867 transitions. [2023-11-29 04:21:42,901 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) [2023-11-29 04:21:42,901 INFO L276 IsEmpty]: Start isEmpty. Operand 31237 states and 36867 transitions. [2023-11-29 04:21:42,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 04:21:42,922 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:42,922 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] [2023-11-29 04:21:42,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 04:21:42,923 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:42,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:42,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1506944464, now seen corresponding path program 1 times [2023-11-29 04:21:42,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:42,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355181565] [2023-11-29 04:21:42,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:42,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:43,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:43,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:43,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355181565] [2023-11-29 04:21:43,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355181565] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:43,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:43,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:43,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869433191] [2023-11-29 04:21:43,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:43,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:43,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:43,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:43,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:43,061 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) [2023-11-29 04:21:43,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:43,135 INFO L93 Difference]: Finished difference Result 31752 states and 36869 transitions. [2023-11-29 04:21:43,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:43,136 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 [2023-11-29 04:21:43,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:43,162 INFO L225 Difference]: With dead ends: 31752 [2023-11-29 04:21:43,162 INFO L226 Difference]: Without dead ends: 31752 [2023-11-29 04:21:43,163 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 [2023-11-29 04:21:43,163 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 [2023-11-29 04:21:43,163 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] [2023-11-29 04:21:43,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31752 states. [2023-11-29 04:21:43,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31752 to 31749. [2023-11-29 04:21:43,477 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) [2023-11-29 04:21:43,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31749 states to 31749 states and 36867 transitions. [2023-11-29 04:21:43,512 INFO L78 Accepts]: Start accepts. Automaton has 31749 states and 36867 transitions. Word has length 28 [2023-11-29 04:21:43,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:43,512 INFO L495 AbstractCegarLoop]: Abstraction has 31749 states and 36867 transitions. [2023-11-29 04:21:43,512 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) [2023-11-29 04:21:43,513 INFO L276 IsEmpty]: Start isEmpty. Operand 31749 states and 36867 transitions. [2023-11-29 04:21:43,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 04:21:43,526 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:43,526 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] [2023-11-29 04:21:43,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-29 04:21:43,526 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:43,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:43,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1766954478, now seen corresponding path program 1 times [2023-11-29 04:21:43,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:43,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43668850] [2023-11-29 04:21:43,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:43,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:43,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:43,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:43,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43668850] [2023-11-29 04:21:43,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43668850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:43,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:43,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:43,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484766528] [2023-11-29 04:21:43,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:43,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:43,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:43,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:43,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:43,548 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) [2023-11-29 04:21:43,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:43,653 INFO L93 Difference]: Finished difference Result 61445 states and 67587 transitions. [2023-11-29 04:21:43,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:43,653 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 [2023-11-29 04:21:43,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:43,701 INFO L225 Difference]: With dead ends: 61445 [2023-11-29 04:21:43,701 INFO L226 Difference]: Without dead ends: 31749 [2023-11-29 04:21:43,701 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 [2023-11-29 04:21:43,702 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 [2023-11-29 04:21:43,702 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] [2023-11-29 04:21:43,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31749 states. [2023-11-29 04:21:44,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31749 to 31749. [2023-11-29 04:21:44,185 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) [2023-11-29 04:21:44,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31749 states to 31749 states and 34819 transitions. [2023-11-29 04:21:44,232 INFO L78 Accepts]: Start accepts. Automaton has 31749 states and 34819 transitions. Word has length 28 [2023-11-29 04:21:44,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:44,232 INFO L495 AbstractCegarLoop]: Abstraction has 31749 states and 34819 transitions. [2023-11-29 04:21:44,233 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) [2023-11-29 04:21:44,233 INFO L276 IsEmpty]: Start isEmpty. Operand 31749 states and 34819 transitions. [2023-11-29 04:21:44,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 04:21:44,253 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:44,253 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] [2023-11-29 04:21:44,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-29 04:21:44,253 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:21:44,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:44,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1248149140, now seen corresponding path program 1 times [2023-11-29 04:21:44,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:44,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441648900] [2023-11-29 04:21:44,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:44,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:44,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:44,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:21:44,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:44,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441648900] [2023-11-29 04:21:44,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441648900] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:44,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:44,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:21:44,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778813466] [2023-11-29 04:21:44,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:44,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:21:44,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:44,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:21:44,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:44,287 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) [2023-11-29 04:21:44,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:44,383 INFO L93 Difference]: Finished difference Result 31746 states and 33793 transitions. [2023-11-29 04:21:44,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:21:44,383 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 [2023-11-29 04:21:44,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:44,384 INFO L225 Difference]: With dead ends: 31746 [2023-11-29 04:21:44,384 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 04:21:44,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:21:44,385 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 [2023-11-29 04:21:44,385 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] [2023-11-29 04:21:44,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 04:21:44,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 04:21:44,386 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) [2023-11-29 04:21:44,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 04:21:44,386 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2023-11-29 04:21:44,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:44,386 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 04:21:44,387 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) [2023-11-29 04:21:44,387 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 04:21:44,387 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 04:21:44,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2023-11-29 04:21:44,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2023-11-29 04:21:44,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-29 04:21:44,394 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] [2023-11-29 04:21:44,396 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:21:44,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:21:44 BoogieIcfgContainer [2023-11-29 04:21:44,400 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:21:44,400 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:21:44,400 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:21:44,401 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:21:44,401 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:21:37" (3/4) ... [2023-11-29 04:21:44,403 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 04:21:44,413 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-29 04:21:44,414 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-29 04:21:44,414 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 04:21:44,415 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 04:21:44,508 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9323e538-b6ee-4ca2-85e1-f13cf13baf1b/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 04:21:44,509 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9323e538-b6ee-4ca2-85e1-f13cf13baf1b/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 04:21:44,509 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:21:44,509 INFO L158 Benchmark]: Toolchain (without parser) took 7463.03ms. Allocated memory was 161.5MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 130.9MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 493.0MB. Max. memory is 16.1GB. [2023-11-29 04:21:44,510 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:21:44,510 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.79ms. Allocated memory is still 161.5MB. Free memory was 130.5MB in the beginning and 119.5MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 04:21:44,510 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.43ms. Allocated memory is still 161.5MB. Free memory was 119.5MB in the beginning and 117.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:21:44,511 INFO L158 Benchmark]: Boogie Preprocessor took 38.89ms. Allocated memory is still 161.5MB. Free memory was 117.4MB in the beginning and 115.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:21:44,511 INFO L158 Benchmark]: RCFGBuilder took 382.06ms. Allocated memory is still 161.5MB. Free memory was 115.3MB in the beginning and 99.6MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 04:21:44,511 INFO L158 Benchmark]: TraceAbstraction took 6634.51ms. Allocated memory was 161.5MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 99.1MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 457.4MB. Max. memory is 16.1GB. [2023-11-29 04:21:44,512 INFO L158 Benchmark]: Witness Printer took 108.50ms. Allocated memory is still 2.3GB. Free memory was 1.8GB in the beginning and 1.8GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 04:21:44,513 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.79ms. Allocated memory is still 161.5MB. Free memory was 130.5MB in the beginning and 119.5MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.43ms. Allocated memory is still 161.5MB. Free memory was 119.5MB in the beginning and 117.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.89ms. Allocated memory is still 161.5MB. Free memory was 117.4MB in the beginning and 115.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 382.06ms. Allocated memory is still 161.5MB. Free memory was 115.3MB in the beginning and 99.6MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6634.51ms. Allocated memory was 161.5MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 99.1MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 457.4MB. Max. memory is 16.1GB. * Witness Printer took 108.50ms. Allocated memory is still 2.3GB. Free memory was 1.8GB in the beginning and 1.8GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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: 0.2s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1494 SdHoareTripleChecker+Valid, 0.3s 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, 0.8s 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! [2023-11-29 04:21:44,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9323e538-b6ee-4ca2-85e1-f13cf13baf1b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE