./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/locks/test_locks_14-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/locks/test_locks_14-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 1e1f6c8a80d54f6d4b7b413368cc99af6eca243b930331d178961d851b56afbd --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 19:26:46,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 19:26:46,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 19:26:46,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 19:26:46,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 19:26:46,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 19:26:46,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 19:26:46,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 19:26:46,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 19:26:46,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 19:26:46,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 19:26:46,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 19:26:46,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 19:26:46,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 19:26:46,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 19:26:46,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 19:26:46,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 19:26:46,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 19:26:46,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 19:26:46,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 19:26:46,356 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 19:26:46,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 19:26:46,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 19:26:46,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 19:26:46,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 19:26:46,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 19:26:46,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 19:26:46,364 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 19:26:46,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 19:26:46,365 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 19:26:46,366 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 19:26:46,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 19:26:46,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 19:26:46,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 19:26:46,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 19:26:46,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 19:26:46,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 19:26:46,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 19:26:46,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 19:26:46,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 19:26:46,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 19:26:46,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 19:26:46,373 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-07-12 19:26:46,408 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 19:26:46,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 19:26:46,408 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 19:26:46,409 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 19:26:46,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 19:26:46,409 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 19:26:46,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 19:26:46,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 19:26:46,410 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 19:26:46,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 19:26:46,411 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 19:26:46,411 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-12 19:26:46,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 19:26:46,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 19:26:46,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 19:26:46,412 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-12 19:26:46,412 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-12 19:26:46,412 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-12 19:26:46,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 19:26:46,412 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 19:26:46,412 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 19:26:46,412 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 19:26:46,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 19:26:46,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 19:26:46,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 19:26:46,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 19:26:46,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 19:26:46,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 19:26:46,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 19:26:46,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 19:26:46,414 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e1f6c8a80d54f6d4b7b413368cc99af6eca243b930331d178961d851b56afbd [2022-07-12 19:26:46,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 19:26:46,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 19:26:46,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 19:26:46,641 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 19:26:46,641 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 19:26:46,642 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_14-1.c [2022-07-12 19:26:46,698 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80fee6363/22b19f6b2cae4244ad83c79726bb4783/FLAG010d91163 [2022-07-12 19:26:47,048 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 19:26:47,049 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-1.c [2022-07-12 19:26:47,070 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80fee6363/22b19f6b2cae4244ad83c79726bb4783/FLAG010d91163 [2022-07-12 19:26:47,079 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80fee6363/22b19f6b2cae4244ad83c79726bb4783 [2022-07-12 19:26:47,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 19:26:47,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 19:26:47,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 19:26:47,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 19:26:47,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 19:26:47,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:26:47" (1/1) ... [2022-07-12 19:26:47,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb6f86a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:47, skipping insertion in model container [2022-07-12 19:26:47,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:26:47" (1/1) ... [2022-07-12 19:26:47,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 19:26:47,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 19:26:47,306 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-1.c[5283,5296] [2022-07-12 19:26:47,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 19:26:47,319 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 19:26:47,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-1.c[5283,5296] [2022-07-12 19:26:47,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 19:26:47,356 INFO L208 MainTranslator]: Completed translation [2022-07-12 19:26:47,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:47 WrapperNode [2022-07-12 19:26:47,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 19:26:47,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 19:26:47,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 19:26:47,357 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 19:26:47,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:47" (1/1) ... [2022-07-12 19:26:47,367 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:47" (1/1) ... [2022-07-12 19:26:47,395 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 182 [2022-07-12 19:26:47,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 19:26:47,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 19:26:47,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 19:26:47,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 19:26:47,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:47" (1/1) ... [2022-07-12 19:26:47,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:47" (1/1) ... [2022-07-12 19:26:47,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:47" (1/1) ... [2022-07-12 19:26:47,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:47" (1/1) ... [2022-07-12 19:26:47,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:47" (1/1) ... [2022-07-12 19:26:47,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:47" (1/1) ... [2022-07-12 19:26:47,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:47" (1/1) ... [2022-07-12 19:26:47,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 19:26:47,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 19:26:47,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 19:26:47,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 19:26:47,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:47" (1/1) ... [2022-07-12 19:26:47,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 19:26:47,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 19:26:47,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 19:26:47,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 19:26:47,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 19:26:47,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 19:26:47,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 19:26:47,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 19:26:47,529 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 19:26:47,530 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 19:26:47,673 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 19:26:47,678 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 19:26:47,678 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 19:26:47,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:26:47 BoogieIcfgContainer [2022-07-12 19:26:47,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 19:26:47,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 19:26:47,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 19:26:47,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 19:26:47,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 07:26:47" (1/3) ... [2022-07-12 19:26:47,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f1a1c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:26:47, skipping insertion in model container [2022-07-12 19:26:47,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:26:47" (2/3) ... [2022-07-12 19:26:47,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f1a1c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:26:47, skipping insertion in model container [2022-07-12 19:26:47,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:26:47" (3/3) ... [2022-07-12 19:26:47,685 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_14-1.c [2022-07-12 19:26:47,694 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 19:26:47,694 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 19:26:47,722 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 19:26:47,727 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@52d24bc6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@747f9015 [2022-07-12 19:26:47,727 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-12 19:26:47,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 50 states have (on average 1.94) internal successors, (97), 52 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:47,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-12 19:26:47,733 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:47,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-12 19:26:47,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:47,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:47,737 INFO L85 PathProgramCache]: Analyzing trace with hash 28943010, now seen corresponding path program 1 times [2022-07-12 19:26:47,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:47,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510345738] [2022-07-12 19:26:47,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:47,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:47,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:47,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:47,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:47,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510345738] [2022-07-12 19:26:47,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510345738] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:47,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:47,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 19:26:47,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964384862] [2022-07-12 19:26:47,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:47,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 19:26:47,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:47,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 19:26:47,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 19:26:47,864 INFO L87 Difference]: Start difference. First operand has 53 states, 50 states have (on average 1.94) internal successors, (97), 52 states have internal predecessors, (97), 0 states have call successors, (0), 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 2.5) 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) [2022-07-12 19:26:47,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:47,877 INFO L93 Difference]: Finished difference Result 53 states and 94 transitions. [2022-07-12 19:26:47,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 19:26:47,879 INFO L78 Accepts]: Start accepts. Automaton has has 2 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 [2022-07-12 19:26:47,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:47,884 INFO L225 Difference]: With dead ends: 53 [2022-07-12 19:26:47,885 INFO L226 Difference]: Without dead ends: 51 [2022-07-12 19:26:47,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 19:26:47,893 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:47,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:47,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-07-12 19:26:47,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-07-12 19:26:47,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 49 states have (on average 1.8775510204081634) internal successors, (92), 50 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:47,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 92 transitions. [2022-07-12 19:26:47,928 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 92 transitions. Word has length 5 [2022-07-12 19:26:47,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:47,928 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 92 transitions. [2022-07-12 19:26:47,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 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) [2022-07-12 19:26:47,929 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 92 transitions. [2022-07-12 19:26:47,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-12 19:26:47,929 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:47,929 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-12 19:26:47,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 19:26:47,930 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:47,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:47,933 INFO L85 PathProgramCache]: Analyzing trace with hash 889700139, now seen corresponding path program 1 times [2022-07-12 19:26:47,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:47,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193788882] [2022-07-12 19:26:47,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:47,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:47,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:48,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:48,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193788882] [2022-07-12 19:26:48,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193788882] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:48,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:48,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 19:26:48,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332566338] [2022-07-12 19:26:48,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:48,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:48,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:48,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:48,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,003 INFO L87 Difference]: Start difference. First operand 51 states and 92 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:48,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:48,017 INFO L93 Difference]: Finished difference Result 50 states and 91 transitions. [2022-07-12 19:26:48,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:48,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-07-12 19:26:48,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:48,019 INFO L225 Difference]: With dead ends: 50 [2022-07-12 19:26:48,019 INFO L226 Difference]: Without dead ends: 48 [2022-07-12 19:26:48,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,020 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 86 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:48,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 91 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:48,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-07-12 19:26:48,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-07-12 19:26:48,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.8936170212765957) internal successors, (89), 47 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:48,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 89 transitions. [2022-07-12 19:26:48,024 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 89 transitions. Word has length 6 [2022-07-12 19:26:48,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:48,025 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 89 transitions. [2022-07-12 19:26:48,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:48,025 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 89 transitions. [2022-07-12 19:26:48,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-12 19:26:48,026 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:48,026 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] [2022-07-12 19:26:48,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 19:26:48,026 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:48,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:48,027 INFO L85 PathProgramCache]: Analyzing trace with hash 792943379, now seen corresponding path program 1 times [2022-07-12 19:26:48,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:48,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099813088] [2022-07-12 19:26:48,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:48,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:48,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:48,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:48,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:48,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099813088] [2022-07-12 19:26:48,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099813088] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:48,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:48,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:48,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403302998] [2022-07-12 19:26:48,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:48,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:48,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:48,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:48,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,101 INFO L87 Difference]: Start difference. First operand 48 states and 89 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) [2022-07-12 19:26:48,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:48,127 INFO L93 Difference]: Finished difference Result 93 states and 173 transitions. [2022-07-12 19:26:48,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:48,128 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 [2022-07-12 19:26:48,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:48,130 INFO L225 Difference]: With dead ends: 93 [2022-07-12 19:26:48,130 INFO L226 Difference]: Without dead ends: 93 [2022-07-12 19:26:48,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,131 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 68 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:48,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 175 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:48,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-12 19:26:48,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 63. [2022-07-12 19:26:48,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.903225806451613) internal successors, (118), 62 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:48,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 118 transitions. [2022-07-12 19:26:48,143 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 118 transitions. Word has length 21 [2022-07-12 19:26:48,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:48,144 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 118 transitions. [2022-07-12 19:26:48,144 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) [2022-07-12 19:26:48,144 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 118 transitions. [2022-07-12 19:26:48,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-12 19:26:48,144 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:48,145 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] [2022-07-12 19:26:48,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 19:26:48,145 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:48,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:48,146 INFO L85 PathProgramCache]: Analyzing trace with hash -795404523, now seen corresponding path program 1 times [2022-07-12 19:26:48,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:48,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259100398] [2022-07-12 19:26:48,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:48,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:48,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:48,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:48,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:48,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259100398] [2022-07-12 19:26:48,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259100398] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:48,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:48,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:48,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49632104] [2022-07-12 19:26:48,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:48,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:48,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:48,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:48,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,196 INFO L87 Difference]: Start difference. First operand 63 states and 118 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) [2022-07-12 19:26:48,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:48,214 INFO L93 Difference]: Finished difference Result 93 states and 171 transitions. [2022-07-12 19:26:48,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:48,215 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 [2022-07-12 19:26:48,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:48,215 INFO L225 Difference]: With dead ends: 93 [2022-07-12 19:26:48,216 INFO L226 Difference]: Without dead ends: 93 [2022-07-12 19:26:48,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,217 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 68 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:48,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 199 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:48,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-12 19:26:48,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2022-07-12 19:26:48,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.8888888888888888) internal successors, (170), 90 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:48,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 170 transitions. [2022-07-12 19:26:48,224 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 170 transitions. Word has length 21 [2022-07-12 19:26:48,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:48,224 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 170 transitions. [2022-07-12 19:26:48,225 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) [2022-07-12 19:26:48,225 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 170 transitions. [2022-07-12 19:26:48,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-12 19:26:48,226 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:48,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:48,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 19:26:48,229 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:48,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:48,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1188346975, now seen corresponding path program 1 times [2022-07-12 19:26:48,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:48,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313292850] [2022-07-12 19:26:48,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:48,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:48,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:48,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:48,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313292850] [2022-07-12 19:26:48,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313292850] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:48,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:48,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:48,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006613587] [2022-07-12 19:26:48,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:48,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:48,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:48,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:48,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,263 INFO L87 Difference]: Start difference. First operand 91 states and 170 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) [2022-07-12 19:26:48,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:48,273 INFO L93 Difference]: Finished difference Result 96 states and 173 transitions. [2022-07-12 19:26:48,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:48,274 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 [2022-07-12 19:26:48,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:48,274 INFO L225 Difference]: With dead ends: 96 [2022-07-12 19:26:48,274 INFO L226 Difference]: Without dead ends: 96 [2022-07-12 19:26:48,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,276 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 70 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:48,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 224 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:48,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-07-12 19:26:48,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2022-07-12 19:26:48,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.8494623655913978) internal successors, (172), 93 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:48,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 172 transitions. [2022-07-12 19:26:48,281 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 172 transitions. Word has length 22 [2022-07-12 19:26:48,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:48,282 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 172 transitions. [2022-07-12 19:26:48,282 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) [2022-07-12 19:26:48,282 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 172 transitions. [2022-07-12 19:26:48,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-12 19:26:48,282 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:48,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:48,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 19:26:48,283 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:48,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:48,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1112475615, now seen corresponding path program 1 times [2022-07-12 19:26:48,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:48,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971903304] [2022-07-12 19:26:48,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:48,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:48,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:48,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:48,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971903304] [2022-07-12 19:26:48,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971903304] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:48,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:48,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:48,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360739648] [2022-07-12 19:26:48,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:48,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:48,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:48,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:48,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,333 INFO L87 Difference]: Start difference. First operand 94 states and 172 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) [2022-07-12 19:26:48,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:48,343 INFO L93 Difference]: Finished difference Result 179 states and 330 transitions. [2022-07-12 19:26:48,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:48,344 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 [2022-07-12 19:26:48,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:48,345 INFO L225 Difference]: With dead ends: 179 [2022-07-12 19:26:48,345 INFO L226 Difference]: Without dead ends: 179 [2022-07-12 19:26:48,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,346 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 65 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:48,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 173 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:48,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-07-12 19:26:48,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 125. [2022-07-12 19:26:48,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.846774193548387) internal successors, (229), 124 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:48,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 229 transitions. [2022-07-12 19:26:48,353 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 229 transitions. Word has length 22 [2022-07-12 19:26:48,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:48,353 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 229 transitions. [2022-07-12 19:26:48,353 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) [2022-07-12 19:26:48,353 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 229 transitions. [2022-07-12 19:26:48,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-12 19:26:48,354 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:48,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:48,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 19:26:48,354 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:48,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:48,355 INFO L85 PathProgramCache]: Analyzing trace with hash -475872287, now seen corresponding path program 1 times [2022-07-12 19:26:48,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:48,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509032180] [2022-07-12 19:26:48,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:48,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:48,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:48,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:48,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509032180] [2022-07-12 19:26:48,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509032180] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:48,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:48,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:48,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731917811] [2022-07-12 19:26:48,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:48,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:48,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:48,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:48,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,382 INFO L87 Difference]: Start difference. First operand 125 states and 229 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) [2022-07-12 19:26:48,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:48,392 INFO L93 Difference]: Finished difference Result 181 states and 328 transitions. [2022-07-12 19:26:48,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:48,392 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 [2022-07-12 19:26:48,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:48,393 INFO L225 Difference]: With dead ends: 181 [2022-07-12 19:26:48,393 INFO L226 Difference]: Without dead ends: 181 [2022-07-12 19:26:48,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,394 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 67 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:48,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 200 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:48,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-07-12 19:26:48,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 179. [2022-07-12 19:26:48,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 178 states have (on average 1.8370786516853932) internal successors, (327), 178 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:48,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 327 transitions. [2022-07-12 19:26:48,400 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 327 transitions. Word has length 22 [2022-07-12 19:26:48,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:48,401 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 327 transitions. [2022-07-12 19:26:48,401 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) [2022-07-12 19:26:48,401 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 327 transitions. [2022-07-12 19:26:48,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-12 19:26:48,402 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:48,402 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] [2022-07-12 19:26:48,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 19:26:48,402 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:48,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:48,403 INFO L85 PathProgramCache]: Analyzing trace with hash 127218090, now seen corresponding path program 1 times [2022-07-12 19:26:48,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:48,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941133958] [2022-07-12 19:26:48,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:48,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:48,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:48,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:48,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941133958] [2022-07-12 19:26:48,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941133958] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:48,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:48,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:48,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406536109] [2022-07-12 19:26:48,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:48,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:48,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:48,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:48,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,431 INFO L87 Difference]: Start difference. First operand 179 states and 327 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) [2022-07-12 19:26:48,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:48,440 INFO L93 Difference]: Finished difference Result 183 states and 328 transitions. [2022-07-12 19:26:48,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:48,440 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 [2022-07-12 19:26:48,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:48,441 INFO L225 Difference]: With dead ends: 183 [2022-07-12 19:26:48,441 INFO L226 Difference]: Without dead ends: 183 [2022-07-12 19:26:48,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,442 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 69 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:48,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 220 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:48,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-07-12 19:26:48,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 181. [2022-07-12 19:26:48,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.8166666666666667) internal successors, (327), 180 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:48,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 327 transitions. [2022-07-12 19:26:48,449 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 327 transitions. Word has length 23 [2022-07-12 19:26:48,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:48,449 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 327 transitions. [2022-07-12 19:26:48,449 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) [2022-07-12 19:26:48,449 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 327 transitions. [2022-07-12 19:26:48,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-12 19:26:48,450 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:48,450 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] [2022-07-12 19:26:48,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 19:26:48,451 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:48,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:48,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1866926616, now seen corresponding path program 1 times [2022-07-12 19:26:48,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:48,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039366244] [2022-07-12 19:26:48,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:48,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:48,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:48,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:48,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039366244] [2022-07-12 19:26:48,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039366244] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:48,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:48,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:48,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916031672] [2022-07-12 19:26:48,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:48,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:48,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:48,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:48,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,497 INFO L87 Difference]: Start difference. First operand 181 states and 327 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) [2022-07-12 19:26:48,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:48,506 INFO L93 Difference]: Finished difference Result 351 states and 628 transitions. [2022-07-12 19:26:48,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:48,506 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 [2022-07-12 19:26:48,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:48,507 INFO L225 Difference]: With dead ends: 351 [2022-07-12 19:26:48,507 INFO L226 Difference]: Without dead ends: 351 [2022-07-12 19:26:48,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,508 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 67 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:48,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 175 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:48,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-07-12 19:26:48,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 349. [2022-07-12 19:26:48,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 348 states have (on average 1.8017241379310345) internal successors, (627), 348 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:48,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 627 transitions. [2022-07-12 19:26:48,535 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 627 transitions. Word has length 23 [2022-07-12 19:26:48,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:48,536 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 627 transitions. [2022-07-12 19:26:48,536 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) [2022-07-12 19:26:48,536 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 627 transitions. [2022-07-12 19:26:48,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-12 19:26:48,537 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:48,537 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] [2022-07-12 19:26:48,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 19:26:48,537 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:48,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:48,538 INFO L85 PathProgramCache]: Analyzing trace with hash -278578714, now seen corresponding path program 1 times [2022-07-12 19:26:48,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:48,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132806651] [2022-07-12 19:26:48,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:48,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:48,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:48,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:48,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132806651] [2022-07-12 19:26:48,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132806651] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:48,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:48,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:48,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367021783] [2022-07-12 19:26:48,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:48,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:48,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:48,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:48,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,598 INFO L87 Difference]: Start difference. First operand 349 states and 627 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) [2022-07-12 19:26:48,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:48,606 INFO L93 Difference]: Finished difference Result 447 states and 808 transitions. [2022-07-12 19:26:48,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:48,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-07-12 19:26:48,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:48,607 INFO L225 Difference]: With dead ends: 447 [2022-07-12 19:26:48,607 INFO L226 Difference]: Without dead ends: 447 [2022-07-12 19:26:48,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,608 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 62 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 242 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 [2022-07-12 19:26:48,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 242 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:48,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-07-12 19:26:48,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 349. [2022-07-12 19:26:48,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 348 states have (on average 1.7902298850574712) internal successors, (623), 348 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:48,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 623 transitions. [2022-07-12 19:26:48,615 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 623 transitions. Word has length 23 [2022-07-12 19:26:48,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:48,615 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 623 transitions. [2022-07-12 19:26:48,615 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) [2022-07-12 19:26:48,615 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 623 transitions. [2022-07-12 19:26:48,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-12 19:26:48,616 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:48,616 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] [2022-07-12 19:26:48,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 19:26:48,616 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:48,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:48,617 INFO L85 PathProgramCache]: Analyzing trace with hash -2039937514, now seen corresponding path program 1 times [2022-07-12 19:26:48,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:48,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713653657] [2022-07-12 19:26:48,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:48,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:48,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:48,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:48,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:48,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713653657] [2022-07-12 19:26:48,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713653657] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:48,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:48,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:48,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641993163] [2022-07-12 19:26:48,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:48,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:48,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:48,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:48,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,635 INFO L87 Difference]: Start difference. First operand 349 states and 623 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) [2022-07-12 19:26:48,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:48,643 INFO L93 Difference]: Finished difference Result 659 states and 1184 transitions. [2022-07-12 19:26:48,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:48,644 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 [2022-07-12 19:26:48,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:48,645 INFO L225 Difference]: With dead ends: 659 [2022-07-12 19:26:48,646 INFO L226 Difference]: Without dead ends: 659 [2022-07-12 19:26:48,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,646 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 59 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:48,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 169 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:48,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2022-07-12 19:26:48,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 481. [2022-07-12 19:26:48,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 1.7645833333333334) internal successors, (847), 480 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:48,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 847 transitions. [2022-07-12 19:26:48,654 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 847 transitions. Word has length 24 [2022-07-12 19:26:48,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:48,654 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 847 transitions. [2022-07-12 19:26:48,654 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) [2022-07-12 19:26:48,654 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 847 transitions. [2022-07-12 19:26:48,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-12 19:26:48,655 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:48,655 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] [2022-07-12 19:26:48,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 19:26:48,656 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:48,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:48,656 INFO L85 PathProgramCache]: Analyzing trace with hash 666681880, now seen corresponding path program 1 times [2022-07-12 19:26:48,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:48,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4181282] [2022-07-12 19:26:48,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:48,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:48,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:48,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:48,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4181282] [2022-07-12 19:26:48,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4181282] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:48,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:48,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:48,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159213073] [2022-07-12 19:26:48,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:48,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:48,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:48,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:48,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,673 INFO L87 Difference]: Start difference. First operand 481 states and 847 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) [2022-07-12 19:26:48,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:48,682 INFO L93 Difference]: Finished difference Result 683 states and 1196 transitions. [2022-07-12 19:26:48,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:48,682 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 [2022-07-12 19:26:48,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:48,684 INFO L225 Difference]: With dead ends: 683 [2022-07-12 19:26:48,684 INFO L226 Difference]: Without dead ends: 683 [2022-07-12 19:26:48,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,685 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 65 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:48,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 202 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:48,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2022-07-12 19:26:48,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 681. [2022-07-12 19:26:48,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 680 states have (on average 1.7573529411764706) internal successors, (1195), 680 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:48,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 1195 transitions. [2022-07-12 19:26:48,693 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 1195 transitions. Word has length 24 [2022-07-12 19:26:48,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:48,693 INFO L495 AbstractCegarLoop]: Abstraction has 681 states and 1195 transitions. [2022-07-12 19:26:48,693 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) [2022-07-12 19:26:48,693 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 1195 transitions. [2022-07-12 19:26:48,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-12 19:26:48,695 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:48,696 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] [2022-07-12 19:26:48,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 19:26:48,696 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:48,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:48,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1186659581, now seen corresponding path program 1 times [2022-07-12 19:26:48,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:48,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092185479] [2022-07-12 19:26:48,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:48,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:48,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:48,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:48,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092185479] [2022-07-12 19:26:48,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092185479] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:48,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:48,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:48,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109670991] [2022-07-12 19:26:48,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:48,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:48,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:48,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:48,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,727 INFO L87 Difference]: Start difference. First operand 681 states and 1195 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) [2022-07-12 19:26:48,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:48,735 INFO L93 Difference]: Finished difference Result 695 states and 1204 transitions. [2022-07-12 19:26:48,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:48,735 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 [2022-07-12 19:26:48,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:48,737 INFO L225 Difference]: With dead ends: 695 [2022-07-12 19:26:48,737 INFO L226 Difference]: Without dead ends: 695 [2022-07-12 19:26:48,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,738 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 67 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:48,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 212 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:48,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2022-07-12 19:26:48,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 693. [2022-07-12 19:26:48,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 692 states have (on average 1.7384393063583814) internal successors, (1203), 692 states have internal predecessors, (1203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:48,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1203 transitions. [2022-07-12 19:26:48,746 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1203 transitions. Word has length 25 [2022-07-12 19:26:48,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:48,746 INFO L495 AbstractCegarLoop]: Abstraction has 693 states and 1203 transitions. [2022-07-12 19:26:48,746 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) [2022-07-12 19:26:48,746 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1203 transitions. [2022-07-12 19:26:48,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-12 19:26:48,747 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:48,747 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] [2022-07-12 19:26:48,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 19:26:48,747 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:48,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:48,747 INFO L85 PathProgramCache]: Analyzing trace with hash -807485125, now seen corresponding path program 1 times [2022-07-12 19:26:48,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:48,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589047306] [2022-07-12 19:26:48,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:48,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:48,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:48,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:48,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589047306] [2022-07-12 19:26:48,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589047306] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:48,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:48,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:48,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725467386] [2022-07-12 19:26:48,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:48,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:48,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:48,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:48,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,763 INFO L87 Difference]: Start difference. First operand 693 states and 1203 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) [2022-07-12 19:26:48,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:48,775 INFO L93 Difference]: Finished difference Result 1287 states and 2252 transitions. [2022-07-12 19:26:48,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:48,775 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 [2022-07-12 19:26:48,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:48,780 INFO L225 Difference]: With dead ends: 1287 [2022-07-12 19:26:48,780 INFO L226 Difference]: Without dead ends: 1287 [2022-07-12 19:26:48,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,781 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 56 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:48,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 167 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:48,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2022-07-12 19:26:48,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 965. [2022-07-12 19:26:48,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 964 states have (on average 1.704356846473029) internal successors, (1643), 964 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:48,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1643 transitions. [2022-07-12 19:26:48,795 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1643 transitions. Word has length 25 [2022-07-12 19:26:48,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:48,796 INFO L495 AbstractCegarLoop]: Abstraction has 965 states and 1643 transitions. [2022-07-12 19:26:48,796 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) [2022-07-12 19:26:48,798 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1643 transitions. [2022-07-12 19:26:48,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-12 19:26:48,798 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:48,799 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] [2022-07-12 19:26:48,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 19:26:48,799 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:48,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:48,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1899134269, now seen corresponding path program 1 times [2022-07-12 19:26:48,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:48,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435322359] [2022-07-12 19:26:48,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:48,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:48,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:48,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:48,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435322359] [2022-07-12 19:26:48,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435322359] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:48,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:48,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:48,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868971608] [2022-07-12 19:26:48,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:48,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:48,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:48,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:48,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,826 INFO L87 Difference]: Start difference. First operand 965 states and 1643 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) [2022-07-12 19:26:48,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:48,839 INFO L93 Difference]: Finished difference Result 1351 states and 2292 transitions. [2022-07-12 19:26:48,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:48,839 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 [2022-07-12 19:26:48,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:48,843 INFO L225 Difference]: With dead ends: 1351 [2022-07-12 19:26:48,843 INFO L226 Difference]: Without dead ends: 1351 [2022-07-12 19:26:48,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,844 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 64 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:48,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 203 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:48,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2022-07-12 19:26:48,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1349. [2022-07-12 19:26:48,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 1348 states have (on average 1.6995548961424332) internal successors, (2291), 1348 states have internal predecessors, (2291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:48,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 2291 transitions. [2022-07-12 19:26:48,861 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 2291 transitions. Word has length 25 [2022-07-12 19:26:48,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:48,861 INFO L495 AbstractCegarLoop]: Abstraction has 1349 states and 2291 transitions. [2022-07-12 19:26:48,861 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) [2022-07-12 19:26:48,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 2291 transitions. [2022-07-12 19:26:48,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-12 19:26:48,863 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:48,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:48,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 19:26:48,863 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:48,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:48,864 INFO L85 PathProgramCache]: Analyzing trace with hash 737978317, now seen corresponding path program 1 times [2022-07-12 19:26:48,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:48,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110894980] [2022-07-12 19:26:48,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:48,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:48,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:48,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:48,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110894980] [2022-07-12 19:26:48,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110894980] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:48,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:48,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:48,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2975047] [2022-07-12 19:26:48,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:48,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:48,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:48,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:48,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,897 INFO L87 Difference]: Start difference. First operand 1349 states and 2291 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) [2022-07-12 19:26:48,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:48,907 INFO L93 Difference]: Finished difference Result 1367 states and 2292 transitions. [2022-07-12 19:26:48,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:48,908 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 [2022-07-12 19:26:48,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:48,911 INFO L225 Difference]: With dead ends: 1367 [2022-07-12 19:26:48,911 INFO L226 Difference]: Without dead ends: 1367 [2022-07-12 19:26:48,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,912 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 66 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:48,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 208 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:48,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2022-07-12 19:26:48,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1365. [2022-07-12 19:26:48,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1364 states have (on average 1.6796187683284458) internal successors, (2291), 1364 states have internal predecessors, (2291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:48,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 2291 transitions. [2022-07-12 19:26:48,931 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 2291 transitions. Word has length 26 [2022-07-12 19:26:48,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:48,932 INFO L495 AbstractCegarLoop]: Abstraction has 1365 states and 2291 transitions. [2022-07-12 19:26:48,932 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) [2022-07-12 19:26:48,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 2291 transitions. [2022-07-12 19:26:48,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-12 19:26:48,933 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:48,933 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] [2022-07-12 19:26:48,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 19:26:48,933 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:48,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:48,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1256166389, now seen corresponding path program 1 times [2022-07-12 19:26:48,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:48,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410275212] [2022-07-12 19:26:48,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:48,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:48,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:48,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:48,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410275212] [2022-07-12 19:26:48,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410275212] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:48,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:48,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:48,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245196382] [2022-07-12 19:26:48,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:48,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:48,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:48,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:48,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,963 INFO L87 Difference]: Start difference. First operand 1365 states and 2291 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) [2022-07-12 19:26:48,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:48,979 INFO L93 Difference]: Finished difference Result 2503 states and 4244 transitions. [2022-07-12 19:26:48,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:48,979 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 [2022-07-12 19:26:48,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:48,985 INFO L225 Difference]: With dead ends: 2503 [2022-07-12 19:26:48,985 INFO L226 Difference]: Without dead ends: 2503 [2022-07-12 19:26:48,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:48,987 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 53 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:48,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 165 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:48,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2022-07-12 19:26:49,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 1925. [2022-07-12 19:26:49,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1925 states, 1924 states have (on average 1.6398128898128899) internal successors, (3155), 1924 states have internal predecessors, (3155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:49,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 3155 transitions. [2022-07-12 19:26:49,025 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 3155 transitions. Word has length 26 [2022-07-12 19:26:49,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:49,026 INFO L495 AbstractCegarLoop]: Abstraction has 1925 states and 3155 transitions. [2022-07-12 19:26:49,026 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) [2022-07-12 19:26:49,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 3155 transitions. [2022-07-12 19:26:49,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-12 19:26:49,028 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:49,028 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] [2022-07-12 19:26:49,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 19:26:49,028 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:49,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:49,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1450453005, now seen corresponding path program 1 times [2022-07-12 19:26:49,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:49,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017069690] [2022-07-12 19:26:49,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:49,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:49,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:49,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:49,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017069690] [2022-07-12 19:26:49,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017069690] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:49,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:49,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:49,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076188201] [2022-07-12 19:26:49,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:49,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:49,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:49,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:49,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:49,061 INFO L87 Difference]: Start difference. First operand 1925 states and 3155 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) [2022-07-12 19:26:49,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:49,074 INFO L93 Difference]: Finished difference Result 2663 states and 4356 transitions. [2022-07-12 19:26:49,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:49,075 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 [2022-07-12 19:26:49,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:49,080 INFO L225 Difference]: With dead ends: 2663 [2022-07-12 19:26:49,080 INFO L226 Difference]: Without dead ends: 2663 [2022-07-12 19:26:49,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:49,081 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 63 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:49,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 204 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:49,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2663 states. [2022-07-12 19:26:49,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2663 to 2661. [2022-07-12 19:26:49,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 2660 states have (on average 1.637218045112782) internal successors, (4355), 2660 states have internal predecessors, (4355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:49,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 4355 transitions. [2022-07-12 19:26:49,115 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 4355 transitions. Word has length 26 [2022-07-12 19:26:49,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:49,115 INFO L495 AbstractCegarLoop]: Abstraction has 2661 states and 4355 transitions. [2022-07-12 19:26:49,115 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) [2022-07-12 19:26:49,116 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 4355 transitions. [2022-07-12 19:26:49,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-12 19:26:49,117 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:49,117 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] [2022-07-12 19:26:49,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 19:26:49,117 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:49,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:49,118 INFO L85 PathProgramCache]: Analyzing trace with hash -286238638, now seen corresponding path program 1 times [2022-07-12 19:26:49,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:49,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567653226] [2022-07-12 19:26:49,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:49,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:49,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:49,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:49,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567653226] [2022-07-12 19:26:49,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567653226] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:49,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:49,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:49,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874860099] [2022-07-12 19:26:49,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:49,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:49,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:49,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:49,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:49,143 INFO L87 Difference]: Start difference. First operand 2661 states and 4355 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) [2022-07-12 19:26:49,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:49,157 INFO L93 Difference]: Finished difference Result 2695 states and 4356 transitions. [2022-07-12 19:26:49,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:49,157 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 [2022-07-12 19:26:49,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:49,163 INFO L225 Difference]: With dead ends: 2695 [2022-07-12 19:26:49,163 INFO L226 Difference]: Without dead ends: 2695 [2022-07-12 19:26:49,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:49,164 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 65 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:49,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 204 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:49,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2695 states. [2022-07-12 19:26:49,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2695 to 2693. [2022-07-12 19:26:49,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2693 states, 2692 states have (on average 1.6177563150074294) internal successors, (4355), 2692 states have internal predecessors, (4355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:49,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2693 states to 2693 states and 4355 transitions. [2022-07-12 19:26:49,197 INFO L78 Accepts]: Start accepts. Automaton has 2693 states and 4355 transitions. Word has length 27 [2022-07-12 19:26:49,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:49,197 INFO L495 AbstractCegarLoop]: Abstraction has 2693 states and 4355 transitions. [2022-07-12 19:26:49,197 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) [2022-07-12 19:26:49,197 INFO L276 IsEmpty]: Start isEmpty. Operand 2693 states and 4355 transitions. [2022-07-12 19:26:49,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-12 19:26:49,199 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:49,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:49,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-12 19:26:49,199 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:49,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:49,200 INFO L85 PathProgramCache]: Analyzing trace with hash 2014583952, now seen corresponding path program 1 times [2022-07-12 19:26:49,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:49,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422407907] [2022-07-12 19:26:49,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:49,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:49,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:49,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:49,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:49,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422407907] [2022-07-12 19:26:49,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422407907] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:49,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:49,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:49,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203141872] [2022-07-12 19:26:49,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:49,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:49,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:49,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:49,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:49,224 INFO L87 Difference]: Start difference. First operand 2693 states and 4355 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) [2022-07-12 19:26:49,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:49,255 INFO L93 Difference]: Finished difference Result 4871 states and 7972 transitions. [2022-07-12 19:26:49,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:49,256 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 [2022-07-12 19:26:49,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:49,266 INFO L225 Difference]: With dead ends: 4871 [2022-07-12 19:26:49,267 INFO L226 Difference]: Without dead ends: 4871 [2022-07-12 19:26:49,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:49,268 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 50 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:49,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 163 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:49,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4871 states. [2022-07-12 19:26:49,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4871 to 3845. [2022-07-12 19:26:49,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3845 states, 3844 states have (on average 1.5741415192507804) internal successors, (6051), 3844 states have internal predecessors, (6051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:49,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3845 states to 3845 states and 6051 transitions. [2022-07-12 19:26:49,330 INFO L78 Accepts]: Start accepts. Automaton has 3845 states and 6051 transitions. Word has length 27 [2022-07-12 19:26:49,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:49,330 INFO L495 AbstractCegarLoop]: Abstraction has 3845 states and 6051 transitions. [2022-07-12 19:26:49,330 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) [2022-07-12 19:26:49,331 INFO L276 IsEmpty]: Start isEmpty. Operand 3845 states and 6051 transitions. [2022-07-12 19:26:49,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-12 19:26:49,333 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:49,333 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] [2022-07-12 19:26:49,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-12 19:26:49,334 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:49,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:49,334 INFO L85 PathProgramCache]: Analyzing trace with hash 426236050, now seen corresponding path program 1 times [2022-07-12 19:26:49,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:49,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447805643] [2022-07-12 19:26:49,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:49,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:49,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:49,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:49,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447805643] [2022-07-12 19:26:49,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447805643] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:49,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:49,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:49,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493906406] [2022-07-12 19:26:49,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:49,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:49,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:49,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:49,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:49,358 INFO L87 Difference]: Start difference. First operand 3845 states and 6051 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) [2022-07-12 19:26:49,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:49,377 INFO L93 Difference]: Finished difference Result 5255 states and 8260 transitions. [2022-07-12 19:26:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:49,377 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 [2022-07-12 19:26:49,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:49,398 INFO L225 Difference]: With dead ends: 5255 [2022-07-12 19:26:49,399 INFO L226 Difference]: Without dead ends: 5255 [2022-07-12 19:26:49,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:49,400 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 62 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:49,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 205 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:49,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5255 states. [2022-07-12 19:26:49,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5255 to 5253. [2022-07-12 19:26:49,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 1.5725437928408226) internal successors, (8259), 5252 states have internal predecessors, (8259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:49,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 8259 transitions. [2022-07-12 19:26:49,468 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 8259 transitions. Word has length 27 [2022-07-12 19:26:49,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:49,468 INFO L495 AbstractCegarLoop]: Abstraction has 5253 states and 8259 transitions. [2022-07-12 19:26:49,468 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) [2022-07-12 19:26:49,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 8259 transitions. [2022-07-12 19:26:49,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-12 19:26:49,473 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:49,473 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] [2022-07-12 19:26:49,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-12 19:26:49,473 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:49,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:49,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1972192830, now seen corresponding path program 1 times [2022-07-12 19:26:49,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:49,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088778591] [2022-07-12 19:26:49,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:49,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:49,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:49,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:49,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088778591] [2022-07-12 19:26:49,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088778591] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:49,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:49,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:49,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009801667] [2022-07-12 19:26:49,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:49,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:49,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:49,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:49,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:49,496 INFO L87 Difference]: Start difference. First operand 5253 states and 8259 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) [2022-07-12 19:26:49,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:49,533 INFO L93 Difference]: Finished difference Result 5319 states and 8260 transitions. [2022-07-12 19:26:49,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:49,534 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 [2022-07-12 19:26:49,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:49,540 INFO L225 Difference]: With dead ends: 5319 [2022-07-12 19:26:49,540 INFO L226 Difference]: Without dead ends: 5319 [2022-07-12 19:26:49,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:49,542 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 64 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:49,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 200 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:49,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5319 states. [2022-07-12 19:26:49,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5319 to 5317. [2022-07-12 19:26:49,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5317 states, 5316 states have (on average 1.5536117381489842) internal successors, (8259), 5316 states have internal predecessors, (8259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:49,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5317 states to 5317 states and 8259 transitions. [2022-07-12 19:26:49,603 INFO L78 Accepts]: Start accepts. Automaton has 5317 states and 8259 transitions. Word has length 28 [2022-07-12 19:26:49,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:49,603 INFO L495 AbstractCegarLoop]: Abstraction has 5317 states and 8259 transitions. [2022-07-12 19:26:49,604 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) [2022-07-12 19:26:49,604 INFO L276 IsEmpty]: Start isEmpty. Operand 5317 states and 8259 transitions. [2022-07-12 19:26:49,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-12 19:26:49,607 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:49,607 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] [2022-07-12 19:26:49,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-12 19:26:49,608 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:49,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:49,609 INFO L85 PathProgramCache]: Analyzing trace with hash 328629760, now seen corresponding path program 1 times [2022-07-12 19:26:49,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:49,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927201844] [2022-07-12 19:26:49,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:49,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:49,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:49,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:49,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927201844] [2022-07-12 19:26:49,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927201844] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:49,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:49,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:49,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492124055] [2022-07-12 19:26:49,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:49,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:49,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:49,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:49,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:49,625 INFO L87 Difference]: Start difference. First operand 5317 states and 8259 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) [2022-07-12 19:26:49,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:49,663 INFO L93 Difference]: Finished difference Result 9479 states and 14916 transitions. [2022-07-12 19:26:49,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:49,664 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 [2022-07-12 19:26:49,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:49,675 INFO L225 Difference]: With dead ends: 9479 [2022-07-12 19:26:49,676 INFO L226 Difference]: Without dead ends: 9479 [2022-07-12 19:26:49,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:49,676 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 47 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:49,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 161 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:49,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9479 states. [2022-07-12 19:26:49,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9479 to 7685. [2022-07-12 19:26:49,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7685 states, 7684 states have (on average 1.5079385736595523) internal successors, (11587), 7684 states have internal predecessors, (11587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:49,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7685 states to 7685 states and 11587 transitions. [2022-07-12 19:26:49,762 INFO L78 Accepts]: Start accepts. Automaton has 7685 states and 11587 transitions. Word has length 28 [2022-07-12 19:26:49,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:49,762 INFO L495 AbstractCegarLoop]: Abstraction has 7685 states and 11587 transitions. [2022-07-12 19:26:49,762 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) [2022-07-12 19:26:49,762 INFO L276 IsEmpty]: Start isEmpty. Operand 7685 states and 11587 transitions. [2022-07-12 19:26:49,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-12 19:26:49,768 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:49,768 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] [2022-07-12 19:26:49,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-12 19:26:49,768 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:49,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:49,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1259718142, now seen corresponding path program 1 times [2022-07-12 19:26:49,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:49,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465456273] [2022-07-12 19:26:49,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:49,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:49,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:49,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:49,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465456273] [2022-07-12 19:26:49,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465456273] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:49,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:49,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:49,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108037429] [2022-07-12 19:26:49,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:49,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:49,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:49,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:49,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:49,781 INFO L87 Difference]: Start difference. First operand 7685 states and 11587 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) [2022-07-12 19:26:49,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:49,805 INFO L93 Difference]: Finished difference Result 10375 states and 15620 transitions. [2022-07-12 19:26:49,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:49,805 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 [2022-07-12 19:26:49,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:49,817 INFO L225 Difference]: With dead ends: 10375 [2022-07-12 19:26:49,817 INFO L226 Difference]: Without dead ends: 10375 [2022-07-12 19:26:49,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:49,818 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 61 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:49,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 206 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:49,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10375 states. [2022-07-12 19:26:49,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10375 to 10373. [2022-07-12 19:26:49,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10373 states, 10372 states have (on average 1.5058812186656383) internal successors, (15619), 10372 states have internal predecessors, (15619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:49,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10373 states to 10373 states and 15619 transitions. [2022-07-12 19:26:49,950 INFO L78 Accepts]: Start accepts. Automaton has 10373 states and 15619 transitions. Word has length 28 [2022-07-12 19:26:49,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:49,950 INFO L495 AbstractCegarLoop]: Abstraction has 10373 states and 15619 transitions. [2022-07-12 19:26:49,950 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) [2022-07-12 19:26:49,950 INFO L276 IsEmpty]: Start isEmpty. Operand 10373 states and 15619 transitions. [2022-07-12 19:26:49,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-12 19:26:49,956 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:49,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:49,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-12 19:26:49,956 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:49,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:49,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1597802407, now seen corresponding path program 1 times [2022-07-12 19:26:49,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:49,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801468854] [2022-07-12 19:26:49,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:49,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:49,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:49,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:49,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801468854] [2022-07-12 19:26:49,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801468854] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:49,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:49,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:49,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495932342] [2022-07-12 19:26:49,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:49,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:49,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:49,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:49,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:49,979 INFO L87 Difference]: Start difference. First operand 10373 states and 15619 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:50,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:50,005 INFO L93 Difference]: Finished difference Result 10503 states and 15620 transitions. [2022-07-12 19:26:50,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:50,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2022-07-12 19:26:50,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:50,019 INFO L225 Difference]: With dead ends: 10503 [2022-07-12 19:26:50,019 INFO L226 Difference]: Without dead ends: 10503 [2022-07-12 19:26:50,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:50,020 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 63 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:50,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 196 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:50,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10503 states. [2022-07-12 19:26:50,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10503 to 10501. [2022-07-12 19:26:50,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10501 states, 10500 states have (on average 1.4875238095238095) internal successors, (15619), 10500 states have internal predecessors, (15619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:50,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10501 states to 10501 states and 15619 transitions. [2022-07-12 19:26:50,183 INFO L78 Accepts]: Start accepts. Automaton has 10501 states and 15619 transitions. Word has length 29 [2022-07-12 19:26:50,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:50,183 INFO L495 AbstractCegarLoop]: Abstraction has 10501 states and 15619 transitions. [2022-07-12 19:26:50,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:50,183 INFO L276 IsEmpty]: Start isEmpty. Operand 10501 states and 15619 transitions. [2022-07-12 19:26:50,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-12 19:26:50,190 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:50,190 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:50,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-12 19:26:50,190 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:50,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:50,191 INFO L85 PathProgramCache]: Analyzing trace with hash -396342299, now seen corresponding path program 1 times [2022-07-12 19:26:50,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:50,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845401962] [2022-07-12 19:26:50,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:50,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:50,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:50,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:50,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845401962] [2022-07-12 19:26:50,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845401962] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:50,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:50,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:50,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392097662] [2022-07-12 19:26:50,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:50,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:50,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:50,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:50,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:50,204 INFO L87 Difference]: Start difference. First operand 10501 states and 15619 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:50,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:50,241 INFO L93 Difference]: Finished difference Result 18439 states and 27780 transitions. [2022-07-12 19:26:50,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:50,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2022-07-12 19:26:50,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:50,267 INFO L225 Difference]: With dead ends: 18439 [2022-07-12 19:26:50,267 INFO L226 Difference]: Without dead ends: 18439 [2022-07-12 19:26:50,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:50,268 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 44 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:50,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 159 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:50,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18439 states. [2022-07-12 19:26:50,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18439 to 15365. [2022-07-12 19:26:50,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15365 states, 15364 states have (on average 1.4414865920333246) internal successors, (22147), 15364 states have internal predecessors, (22147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:50,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15365 states to 15365 states and 22147 transitions. [2022-07-12 19:26:50,462 INFO L78 Accepts]: Start accepts. Automaton has 15365 states and 22147 transitions. Word has length 29 [2022-07-12 19:26:50,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:50,462 INFO L495 AbstractCegarLoop]: Abstraction has 15365 states and 22147 transitions. [2022-07-12 19:26:50,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:50,463 INFO L276 IsEmpty]: Start isEmpty. Operand 15365 states and 22147 transitions. [2022-07-12 19:26:50,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-12 19:26:50,472 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:50,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:50,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-12 19:26:50,472 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:50,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:50,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1984690201, now seen corresponding path program 1 times [2022-07-12 19:26:50,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:50,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206282336] [2022-07-12 19:26:50,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:50,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:50,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:50,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:50,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206282336] [2022-07-12 19:26:50,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206282336] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:50,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:50,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:50,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890067293] [2022-07-12 19:26:50,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:50,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:50,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:50,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:50,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:50,531 INFO L87 Difference]: Start difference. First operand 15365 states and 22147 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:50,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:50,570 INFO L93 Difference]: Finished difference Result 20487 states and 29444 transitions. [2022-07-12 19:26:50,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:50,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2022-07-12 19:26:50,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:50,592 INFO L225 Difference]: With dead ends: 20487 [2022-07-12 19:26:50,592 INFO L226 Difference]: Without dead ends: 20487 [2022-07-12 19:26:50,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:50,593 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 60 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:50,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 207 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:50,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20487 states. [2022-07-12 19:26:50,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20487 to 20485. [2022-07-12 19:26:50,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20485 states, 20484 states have (on average 1.4373657488771725) internal successors, (29443), 20484 states have internal predecessors, (29443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:50,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20485 states to 20485 states and 29443 transitions. [2022-07-12 19:26:50,883 INFO L78 Accepts]: Start accepts. Automaton has 20485 states and 29443 transitions. Word has length 29 [2022-07-12 19:26:50,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:50,883 INFO L495 AbstractCegarLoop]: Abstraction has 20485 states and 29443 transitions. [2022-07-12 19:26:50,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:50,883 INFO L276 IsEmpty]: Start isEmpty. Operand 20485 states and 29443 transitions. [2022-07-12 19:26:50,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-12 19:26:50,895 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:50,895 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:50,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-12 19:26:50,895 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:50,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:50,896 INFO L85 PathProgramCache]: Analyzing trace with hash 598505399, now seen corresponding path program 1 times [2022-07-12 19:26:50,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:50,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847957018] [2022-07-12 19:26:50,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:50,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:50,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:50,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:50,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847957018] [2022-07-12 19:26:50,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847957018] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:50,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:50,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:50,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566431753] [2022-07-12 19:26:50,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:50,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:50,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:50,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:50,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:50,913 INFO L87 Difference]: Start difference. First operand 20485 states and 29443 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:50,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:50,966 INFO L93 Difference]: Finished difference Result 20743 states and 29444 transitions. [2022-07-12 19:26:50,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:50,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2022-07-12 19:26:50,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:50,992 INFO L225 Difference]: With dead ends: 20743 [2022-07-12 19:26:50,992 INFO L226 Difference]: Without dead ends: 20743 [2022-07-12 19:26:50,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:50,993 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 62 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:50,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 192 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:51,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20743 states. [2022-07-12 19:26:51,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20743 to 20741. [2022-07-12 19:26:51,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20741 states, 20740 states have (on average 1.4196239151398264) internal successors, (29443), 20740 states have internal predecessors, (29443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:51,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20741 states to 20741 states and 29443 transitions. [2022-07-12 19:26:51,351 INFO L78 Accepts]: Start accepts. Automaton has 20741 states and 29443 transitions. Word has length 30 [2022-07-12 19:26:51,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:51,352 INFO L495 AbstractCegarLoop]: Abstraction has 20741 states and 29443 transitions. [2022-07-12 19:26:51,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:51,352 INFO L276 IsEmpty]: Start isEmpty. Operand 20741 states and 29443 transitions. [2022-07-12 19:26:51,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-12 19:26:51,362 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:51,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:51,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-12 19:26:51,362 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:51,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:51,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1395639307, now seen corresponding path program 1 times [2022-07-12 19:26:51,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:51,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712605546] [2022-07-12 19:26:51,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:51,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:51,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:51,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:51,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712605546] [2022-07-12 19:26:51,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712605546] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:51,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:51,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:51,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403380190] [2022-07-12 19:26:51,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:51,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:51,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:51,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:51,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:51,379 INFO L87 Difference]: Start difference. First operand 20741 states and 29443 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:51,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:51,444 INFO L93 Difference]: Finished difference Result 35847 states and 51460 transitions. [2022-07-12 19:26:51,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:51,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2022-07-12 19:26:51,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:51,496 INFO L225 Difference]: With dead ends: 35847 [2022-07-12 19:26:51,496 INFO L226 Difference]: Without dead ends: 35847 [2022-07-12 19:26:51,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:51,497 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 41 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:51,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 157 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:51,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35847 states. [2022-07-12 19:26:51,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35847 to 30725. [2022-07-12 19:26:51,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30725 states, 30724 states have (on average 1.3749186303866685) internal successors, (42243), 30724 states have internal predecessors, (42243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:51,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30725 states to 30725 states and 42243 transitions. [2022-07-12 19:26:51,907 INFO L78 Accepts]: Start accepts. Automaton has 30725 states and 42243 transitions. Word has length 30 [2022-07-12 19:26:51,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:51,908 INFO L495 AbstractCegarLoop]: Abstraction has 30725 states and 42243 transitions. [2022-07-12 19:26:51,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:51,908 INFO L276 IsEmpty]: Start isEmpty. Operand 30725 states and 42243 transitions. [2022-07-12 19:26:52,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-12 19:26:52,068 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:52,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:52,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-12 19:26:52,069 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:52,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:52,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1310980087, now seen corresponding path program 1 times [2022-07-12 19:26:52,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:52,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550086303] [2022-07-12 19:26:52,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:52,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:52,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:52,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:52,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550086303] [2022-07-12 19:26:52,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550086303] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:52,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:52,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:52,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052577378] [2022-07-12 19:26:52,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:52,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:52,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:52,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:52,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:52,098 INFO L87 Difference]: Start difference. First operand 30725 states and 42243 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:52,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:52,172 INFO L93 Difference]: Finished difference Result 40455 states and 55300 transitions. [2022-07-12 19:26:52,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:52,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2022-07-12 19:26:52,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:52,216 INFO L225 Difference]: With dead ends: 40455 [2022-07-12 19:26:52,216 INFO L226 Difference]: Without dead ends: 40455 [2022-07-12 19:26:52,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:52,217 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 59 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:52,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 208 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:52,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40455 states. [2022-07-12 19:26:52,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40455 to 40453. [2022-07-12 19:26:52,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40453 states, 40452 states have (on average 1.367027588252744) internal successors, (55299), 40452 states have internal predecessors, (55299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:52,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40453 states to 40453 states and 55299 transitions. [2022-07-12 19:26:52,831 INFO L78 Accepts]: Start accepts. Automaton has 40453 states and 55299 transitions. Word has length 30 [2022-07-12 19:26:52,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:52,831 INFO L495 AbstractCegarLoop]: Abstraction has 40453 states and 55299 transitions. [2022-07-12 19:26:52,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:52,831 INFO L276 IsEmpty]: Start isEmpty. Operand 40453 states and 55299 transitions. [2022-07-12 19:26:52,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-12 19:26:52,850 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:52,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:52,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-12 19:26:52,850 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:52,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:52,851 INFO L85 PathProgramCache]: Analyzing trace with hash -314930436, now seen corresponding path program 1 times [2022-07-12 19:26:52,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:52,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437046326] [2022-07-12 19:26:52,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:52,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:52,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:52,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:52,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437046326] [2022-07-12 19:26:52,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437046326] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:52,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:52,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:52,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458754453] [2022-07-12 19:26:52,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:52,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:52,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:52,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:52,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:52,864 INFO L87 Difference]: Start difference. First operand 40453 states and 55299 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:52,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:52,946 INFO L93 Difference]: Finished difference Result 40967 states and 55300 transitions. [2022-07-12 19:26:52,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:52,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-07-12 19:26:52,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:52,990 INFO L225 Difference]: With dead ends: 40967 [2022-07-12 19:26:52,990 INFO L226 Difference]: Without dead ends: 40967 [2022-07-12 19:26:52,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:52,991 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 61 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:52,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 188 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:53,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40967 states. [2022-07-12 19:26:53,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40967 to 40965. [2022-07-12 19:26:53,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40965 states, 40964 states have (on average 1.3499414119714872) internal successors, (55299), 40964 states have internal predecessors, (55299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:53,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40965 states to 40965 states and 55299 transitions. [2022-07-12 19:26:53,586 INFO L78 Accepts]: Start accepts. Automaton has 40965 states and 55299 transitions. Word has length 31 [2022-07-12 19:26:53,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:53,587 INFO L495 AbstractCegarLoop]: Abstraction has 40965 states and 55299 transitions. [2022-07-12 19:26:53,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:53,587 INFO L276 IsEmpty]: Start isEmpty. Operand 40965 states and 55299 transitions. [2022-07-12 19:26:53,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-12 19:26:53,631 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:53,631 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:53,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-12 19:26:53,632 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:53,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:53,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1985892154, now seen corresponding path program 1 times [2022-07-12 19:26:53,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:53,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894678622] [2022-07-12 19:26:53,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:53,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:53,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:53,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:53,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894678622] [2022-07-12 19:26:53,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894678622] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:53,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:53,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:53,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082041199] [2022-07-12 19:26:53,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:53,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:53,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:53,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:53,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:53,647 INFO L87 Difference]: Start difference. First operand 40965 states and 55299 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:53,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:53,786 INFO L93 Difference]: Finished difference Result 79879 states and 104452 transitions. [2022-07-12 19:26:53,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:53,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-07-12 19:26:53,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:53,876 INFO L225 Difference]: With dead ends: 79879 [2022-07-12 19:26:53,877 INFO L226 Difference]: Without dead ends: 79879 [2022-07-12 19:26:53,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:53,877 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 59 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:53,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 175 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:53,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79879 states. [2022-07-12 19:26:54,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79879 to 79877. [2022-07-12 19:26:55,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79877 states, 79876 states have (on average 1.3076643797886724) internal successors, (104451), 79876 states have internal predecessors, (104451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:55,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79877 states to 79877 states and 104451 transitions. [2022-07-12 19:26:55,107 INFO L78 Accepts]: Start accepts. Automaton has 79877 states and 104451 transitions. Word has length 31 [2022-07-12 19:26:55,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:55,107 INFO L495 AbstractCegarLoop]: Abstraction has 79877 states and 104451 transitions. [2022-07-12 19:26:55,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:55,107 INFO L276 IsEmpty]: Start isEmpty. Operand 79877 states and 104451 transitions. [2022-07-12 19:26:55,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-12 19:26:55,135 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:55,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:55,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-12 19:26:55,136 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:55,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:55,136 INFO L85 PathProgramCache]: Analyzing trace with hash -720727240, now seen corresponding path program 1 times [2022-07-12 19:26:55,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:55,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306480120] [2022-07-12 19:26:55,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:55,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:55,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:55,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:55,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306480120] [2022-07-12 19:26:55,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306480120] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:55,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:55,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:55,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519737774] [2022-07-12 19:26:55,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:55,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:55,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:55,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:55,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:55,181 INFO L87 Difference]: Start difference. First operand 79877 states and 104451 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:55,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:55,584 INFO L93 Difference]: Finished difference Result 88071 states and 117764 transitions. [2022-07-12 19:26:55,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:55,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2022-07-12 19:26:55,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:55,716 INFO L225 Difference]: With dead ends: 88071 [2022-07-12 19:26:55,716 INFO L226 Difference]: Without dead ends: 88071 [2022-07-12 19:26:55,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:55,717 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 38 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 202 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 [2022-07-12 19:26:55,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 202 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:55,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88071 states. [2022-07-12 19:26:56,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88071 to 79877. [2022-07-12 19:26:56,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79877 states, 79876 states have (on average 1.2948445089889329) internal successors, (103427), 79876 states have internal predecessors, (103427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:56,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79877 states to 79877 states and 103427 transitions. [2022-07-12 19:26:56,696 INFO L78 Accepts]: Start accepts. Automaton has 79877 states and 103427 transitions. Word has length 31 [2022-07-12 19:26:56,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:56,697 INFO L495 AbstractCegarLoop]: Abstraction has 79877 states and 103427 transitions. [2022-07-12 19:26:56,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:56,697 INFO L276 IsEmpty]: Start isEmpty. Operand 79877 states and 103427 transitions. [2022-07-12 19:26:56,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-12 19:26:56,728 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:56,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:56,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-12 19:26:56,728 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:56,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:56,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1433330092, now seen corresponding path program 1 times [2022-07-12 19:26:56,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:56,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258422938] [2022-07-12 19:26:56,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:56,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:56,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:56,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:56,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258422938] [2022-07-12 19:26:56,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258422938] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:56,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:56,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:56,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957780689] [2022-07-12 19:26:56,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:56,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:56,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:56,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:56,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:56,744 INFO L87 Difference]: Start difference. First operand 79877 states and 103427 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:57,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:57,197 INFO L93 Difference]: Finished difference Result 134151 states and 174084 transitions. [2022-07-12 19:26:57,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:57,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-07-12 19:26:57,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:57,338 INFO L225 Difference]: With dead ends: 134151 [2022-07-12 19:26:57,339 INFO L226 Difference]: Without dead ends: 134151 [2022-07-12 19:26:57,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:57,339 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 35 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:57,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 153 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:57,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134151 states. [2022-07-12 19:26:58,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134151 to 121861. [2022-07-12 19:26:58,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121861 states, 121860 states have (on average 1.2604874446085672) internal successors, (153603), 121860 states have internal predecessors, (153603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:58,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121861 states to 121861 states and 153603 transitions. [2022-07-12 19:26:58,899 INFO L78 Accepts]: Start accepts. Automaton has 121861 states and 153603 transitions. Word has length 32 [2022-07-12 19:26:58,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:26:58,899 INFO L495 AbstractCegarLoop]: Abstraction has 121861 states and 153603 transitions. [2022-07-12 19:26:58,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:58,900 INFO L276 IsEmpty]: Start isEmpty. Operand 121861 states and 153603 transitions. [2022-07-12 19:26:58,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-12 19:26:58,961 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:26:58,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:26:58,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-12 19:26:58,961 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:26:58,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:26:58,962 INFO L85 PathProgramCache]: Analyzing trace with hash -155017810, now seen corresponding path program 1 times [2022-07-12 19:26:58,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:26:58,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902978048] [2022-07-12 19:26:58,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:26:58,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:26:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:26:58,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:26:58,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:26:58,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902978048] [2022-07-12 19:26:58,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902978048] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:26:59,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:26:59,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:26:59,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190212575] [2022-07-12 19:26:59,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:26:59,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:26:59,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:26:59,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:26:59,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:59,001 INFO L87 Difference]: Start difference. First operand 121861 states and 153603 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:26:59,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:26:59,648 INFO L93 Difference]: Finished difference Result 156679 states and 194564 transitions. [2022-07-12 19:26:59,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:26:59,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-07-12 19:26:59,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:26:59,806 INFO L225 Difference]: With dead ends: 156679 [2022-07-12 19:26:59,806 INFO L226 Difference]: Without dead ends: 156679 [2022-07-12 19:26:59,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:26:59,807 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 57 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:26:59,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 210 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:26:59,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156679 states. [2022-07-12 19:27:01,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156679 to 156677. [2022-07-12 19:27:01,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156677 states, 156676 states have (on average 1.2418175087441599) internal successors, (194563), 156676 states have internal predecessors, (194563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:27:01,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156677 states to 156677 states and 194563 transitions. [2022-07-12 19:27:01,777 INFO L78 Accepts]: Start accepts. Automaton has 156677 states and 194563 transitions. Word has length 32 [2022-07-12 19:27:01,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:27:01,777 INFO L495 AbstractCegarLoop]: Abstraction has 156677 states and 194563 transitions. [2022-07-12 19:27:01,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:27:01,778 INFO L276 IsEmpty]: Start isEmpty. Operand 156677 states and 194563 transitions. [2022-07-12 19:27:01,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-12 19:27:01,849 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:27:01,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:27:01,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-12 19:27:01,849 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:27:01,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:27:01,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1483775695, now seen corresponding path program 1 times [2022-07-12 19:27:01,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:27:01,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402254892] [2022-07-12 19:27:01,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:27:01,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:27:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:27:01,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:27:01,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:27:01,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402254892] [2022-07-12 19:27:01,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402254892] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:27:01,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:27:01,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:27:01,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187726832] [2022-07-12 19:27:01,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:27:01,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:27:01,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:27:01,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:27:01,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:27:01,886 INFO L87 Difference]: Start difference. First operand 156677 states and 194563 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:27:02,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:27:02,678 INFO L93 Difference]: Finished difference Result 159751 states and 196612 transitions. [2022-07-12 19:27:02,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:27:02,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-07-12 19:27:02,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:27:02,903 INFO L225 Difference]: With dead ends: 159751 [2022-07-12 19:27:02,903 INFO L226 Difference]: Without dead ends: 159751 [2022-07-12 19:27:02,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:27:02,904 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 59 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:27:02,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 180 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:27:02,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159751 states. [2022-07-12 19:27:04,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159751 to 159749. [2022-07-12 19:27:04,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159749 states, 159748 states have (on average 1.2307571925783107) internal successors, (196611), 159748 states have internal predecessors, (196611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:27:05,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159749 states to 159749 states and 196611 transitions. [2022-07-12 19:27:05,065 INFO L78 Accepts]: Start accepts. Automaton has 159749 states and 196611 transitions. Word has length 33 [2022-07-12 19:27:05,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:27:05,065 INFO L495 AbstractCegarLoop]: Abstraction has 159749 states and 196611 transitions. [2022-07-12 19:27:05,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:27:05,065 INFO L276 IsEmpty]: Start isEmpty. Operand 159749 states and 196611 transitions. [2022-07-12 19:27:05,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-12 19:27:05,141 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:27:05,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:27:05,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-12 19:27:05,141 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:27:05,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:27:05,142 INFO L85 PathProgramCache]: Analyzing trace with hash -510369011, now seen corresponding path program 1 times [2022-07-12 19:27:05,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:27:05,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612936043] [2022-07-12 19:27:05,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:27:05,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:27:05,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:27:05,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:27:05,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:27:05,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612936043] [2022-07-12 19:27:05,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612936043] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:27:05,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:27:05,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:27:05,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057110637] [2022-07-12 19:27:05,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:27:05,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:27:05,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:27:05,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:27:05,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:27:05,153 INFO L87 Difference]: Start difference. First operand 159749 states and 196611 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:27:05,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:27:05,649 INFO L93 Difference]: Finished difference Result 262151 states and 319492 transitions. [2022-07-12 19:27:05,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:27:05,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-07-12 19:27:05,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:27:05,996 INFO L225 Difference]: With dead ends: 262151 [2022-07-12 19:27:05,997 INFO L226 Difference]: Without dead ends: 262151 [2022-07-12 19:27:05,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:27:05,999 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 32 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:27:05,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 151 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:27:06,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262151 states. [2022-07-12 19:27:08,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262151 to 245765. [2022-07-12 19:27:08,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245765 states, 245764 states have (on average 1.1999926759004573) internal successors, (294915), 245764 states have internal predecessors, (294915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:27:09,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245765 states to 245765 states and 294915 transitions. [2022-07-12 19:27:09,902 INFO L78 Accepts]: Start accepts. Automaton has 245765 states and 294915 transitions. Word has length 33 [2022-07-12 19:27:09,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:27:09,903 INFO L495 AbstractCegarLoop]: Abstraction has 245765 states and 294915 transitions. [2022-07-12 19:27:09,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:27:09,903 INFO L276 IsEmpty]: Start isEmpty. Operand 245765 states and 294915 transitions. [2022-07-12 19:27:10,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-12 19:27:10,114 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:27:10,114 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:27:10,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-12 19:27:10,114 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:27:10,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:27:10,115 INFO L85 PathProgramCache]: Analyzing trace with hash -2098716913, now seen corresponding path program 1 times [2022-07-12 19:27:10,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:27:10,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708886327] [2022-07-12 19:27:10,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:27:10,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:27:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:27:10,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:27:10,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:27:10,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708886327] [2022-07-12 19:27:10,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708886327] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:27:10,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:27:10,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:27:10,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741030566] [2022-07-12 19:27:10,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:27:10,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:27:10,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:27:10,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:27:10,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:27:10,127 INFO L87 Difference]: Start difference. First operand 245765 states and 294915 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:27:10,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:27:10,719 INFO L93 Difference]: Finished difference Result 311303 states and 364548 transitions. [2022-07-12 19:27:10,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:27:10,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-07-12 19:27:10,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:27:11,059 INFO L225 Difference]: With dead ends: 311303 [2022-07-12 19:27:11,059 INFO L226 Difference]: Without dead ends: 311303 [2022-07-12 19:27:11,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:27:11,060 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 56 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:27:11,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 211 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:27:11,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311303 states. [2022-07-12 19:27:14,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311303 to 311301. [2022-07-12 19:27:14,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311301 states, 311300 states have (on average 1.1710472213299068) internal successors, (364547), 311300 states have internal predecessors, (364547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:27:15,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311301 states to 311301 states and 364547 transitions. [2022-07-12 19:27:15,946 INFO L78 Accepts]: Start accepts. Automaton has 311301 states and 364547 transitions. Word has length 33 [2022-07-12 19:27:15,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 19:27:15,946 INFO L495 AbstractCegarLoop]: Abstraction has 311301 states and 364547 transitions. [2022-07-12 19:27:15,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:27:15,947 INFO L276 IsEmpty]: Start isEmpty. Operand 311301 states and 364547 transitions. [2022-07-12 19:27:16,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-12 19:27:16,109 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 19:27:16,116 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 19:27:16,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-12 19:27:16,117 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-12 19:27:16,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 19:27:16,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1358645987, now seen corresponding path program 1 times [2022-07-12 19:27:16,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 19:27:16,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742799037] [2022-07-12 19:27:16,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 19:27:16,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 19:27:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 19:27:16,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 19:27:16,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 19:27:16,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742799037] [2022-07-12 19:27:16,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742799037] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 19:27:16,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 19:27:16,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 19:27:16,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714217860] [2022-07-12 19:27:16,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 19:27:16,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 19:27:16,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 19:27:16,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 19:27:16,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:27:16,155 INFO L87 Difference]: Start difference. First operand 311301 states and 364547 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 19:27:17,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 19:27:17,462 INFO L93 Difference]: Finished difference Result 315399 states and 364548 transitions. [2022-07-12 19:27:17,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 19:27:17,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2022-07-12 19:27:17,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 19:27:17,790 INFO L225 Difference]: With dead ends: 315399 [2022-07-12 19:27:17,790 INFO L226 Difference]: Without dead ends: 315399 [2022-07-12 19:27:17,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 19:27:17,791 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 58 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 19:27:17,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 176 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 19:27:17,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315399 states.