./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/locks/test_locks_9.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version eb692b52 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_9.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 04dc39fb366d4472036345a213cca0ee8b355c41bc9af7e685ecaa2d36ed9484 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 06:33:16,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 06:33:16,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 06:33:16,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 06:33:16,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 06:33:16,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 06:33:16,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 06:33:16,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 06:33:16,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 06:33:16,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 06:33:16,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 06:33:16,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 06:33:16,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 06:33:16,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 06:33:16,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 06:33:16,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 06:33:16,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 06:33:16,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 06:33:16,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 06:33:16,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 06:33:16,367 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 06:33:16,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 06:33:16,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 06:33:16,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 06:33:16,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 06:33:16,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 06:33:16,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 06:33:16,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 06:33:16,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 06:33:16,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 06:33:16,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 06:33:16,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 06:33:16,377 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 06:33:16,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 06:33:16,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 06:33:16,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 06:33:16,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 06:33:16,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 06:33:16,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 06:33:16,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 06:33:16,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 06:33:16,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 06:33:16,383 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-07-20 06:33:16,407 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 06:33:16,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 06:33:16,408 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 06:33:16,408 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 06:33:16,408 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 06:33:16,408 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 06:33:16,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 06:33:16,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 06:33:16,409 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 06:33:16,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 06:33:16,410 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 06:33:16,410 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-20 06:33:16,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 06:33:16,410 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 06:33:16,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 06:33:16,411 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-20 06:33:16,411 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-20 06:33:16,411 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-20 06:33:16,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 06:33:16,411 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 06:33:16,411 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 06:33:16,412 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 06:33:16,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 06:33:16,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 06:33:16,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 06:33:16,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 06:33:16,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 06:33:16,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 06:33:16,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 06:33:16,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 06:33:16,414 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04dc39fb366d4472036345a213cca0ee8b355c41bc9af7e685ecaa2d36ed9484 [2022-07-20 06:33:16,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 06:33:16,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 06:33:16,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 06:33:16,628 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 06:33:16,628 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 06:33:16,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_9.c [2022-07-20 06:33:16,689 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9623f6a3c/1a113fe0c6ed4810b12d722257bae4bf/FLAG9f9e849d5 [2022-07-20 06:33:17,067 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 06:33:17,068 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_9.c [2022-07-20 06:33:17,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9623f6a3c/1a113fe0c6ed4810b12d722257bae4bf/FLAG9f9e849d5 [2022-07-20 06:33:17,088 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9623f6a3c/1a113fe0c6ed4810b12d722257bae4bf [2022-07-20 06:33:17,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 06:33:17,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 06:33:17,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 06:33:17,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 06:33:17,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 06:33:17,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:33:17" (1/1) ... [2022-07-20 06:33:17,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8b901e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:33:17, skipping insertion in model container [2022-07-20 06:33:17,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:33:17" (1/1) ... [2022-07-20 06:33:17,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 06:33:17,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 06:33:17,286 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_9.c[3555,3568] [2022-07-20 06:33:17,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 06:33:17,293 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 06:33:17,309 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_9.c[3555,3568] [2022-07-20 06:33:17,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 06:33:17,319 INFO L208 MainTranslator]: Completed translation [2022-07-20 06:33:17,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:33:17 WrapperNode [2022-07-20 06:33:17,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 06:33:17,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 06:33:17,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 06:33:17,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 06:33:17,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:33:17" (1/1) ... [2022-07-20 06:33:17,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:33:17" (1/1) ... [2022-07-20 06:33:17,342 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 127 [2022-07-20 06:33:17,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 06:33:17,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 06:33:17,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 06:33:17,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 06:33:17,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:33:17" (1/1) ... [2022-07-20 06:33:17,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:33:17" (1/1) ... [2022-07-20 06:33:17,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:33:17" (1/1) ... [2022-07-20 06:33:17,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:33:17" (1/1) ... [2022-07-20 06:33:17,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:33:17" (1/1) ... [2022-07-20 06:33:17,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:33:17" (1/1) ... [2022-07-20 06:33:17,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:33:17" (1/1) ... [2022-07-20 06:33:17,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 06:33:17,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 06:33:17,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 06:33:17,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 06:33:17,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:33:17" (1/1) ... [2022-07-20 06:33:17,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 06:33:17,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 06:33:17,416 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) [2022-07-20 06:33:17,421 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 [2022-07-20 06:33:17,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 06:33:17,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 06:33:17,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 06:33:17,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 06:33:17,492 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 06:33:17,493 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 06:33:17,702 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 06:33:17,706 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 06:33:17,706 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-20 06:33:17,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:33:17 BoogieIcfgContainer [2022-07-20 06:33:17,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 06:33:17,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 06:33:17,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 06:33:17,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 06:33:17,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 06:33:17" (1/3) ... [2022-07-20 06:33:17,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16690c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:33:17, skipping insertion in model container [2022-07-20 06:33:17,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:33:17" (2/3) ... [2022-07-20 06:33:17,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16690c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:33:17, skipping insertion in model container [2022-07-20 06:33:17,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:33:17" (3/3) ... [2022-07-20 06:33:17,721 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_9.c [2022-07-20 06:33:17,731 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 06:33:17,751 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-20 06:33:17,793 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 06:33:17,800 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@4800920a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7836505b [2022-07-20 06:33:17,800 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-20 06:33:17,804 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 37 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:17,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-20 06:33:17,808 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:17,809 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-20 06:33:17,810 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:17,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:17,815 INFO L85 PathProgramCache]: Analyzing trace with hash 28702923, now seen corresponding path program 1 times [2022-07-20 06:33:17,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:17,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011872317] [2022-07-20 06:33:17,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:17,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:17,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:17,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:17,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011872317] [2022-07-20 06:33:17,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011872317] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:17,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:17,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 06:33:17,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909945422] [2022-07-20 06:33:17,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:17,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-20 06:33:17,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:17,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-20 06:33:17,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 06:33:17,956 INFO L87 Difference]: Start difference. First operand has 38 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 37 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2022-07-20 06:33:17,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:17,968 INFO L93 Difference]: Finished difference Result 38 states and 64 transitions. [2022-07-20 06:33:17,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-20 06:33:17,970 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 [2022-07-20 06:33:17,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:17,975 INFO L225 Difference]: With dead ends: 38 [2022-07-20 06:33:17,976 INFO L226 Difference]: Without dead ends: 36 [2022-07-20 06:33:17,977 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 [2022-07-20 06:33:17,982 INFO L413 NwaCegarLoop]: 64 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, 64 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 [2022-07-20 06:33:17,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:17,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-07-20 06:33:18,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-07-20 06:33:18,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.8235294117647058) internal successors, (62), 35 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 62 transitions. [2022-07-20 06:33:18,010 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 62 transitions. Word has length 5 [2022-07-20 06:33:18,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:18,011 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 62 transitions. [2022-07-20 06:33:18,011 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) [2022-07-20 06:33:18,012 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 62 transitions. [2022-07-20 06:33:18,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-20 06:33:18,012 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:18,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-20 06:33:18,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 06:33:18,013 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:18,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:18,014 INFO L85 PathProgramCache]: Analyzing trace with hash 889697419, now seen corresponding path program 1 times [2022-07-20 06:33:18,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:18,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957651562] [2022-07-20 06:33:18,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:18,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:18,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:18,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:18,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957651562] [2022-07-20 06:33:18,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957651562] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:18,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:18,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 06:33:18,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986391055] [2022-07-20 06:33:18,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:18,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:18,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:18,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:18,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:18,063 INFO L87 Difference]: Start difference. First operand 36 states and 62 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) [2022-07-20 06:33:18,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:18,078 INFO L93 Difference]: Finished difference Result 35 states and 61 transitions. [2022-07-20 06:33:18,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:18,080 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 [2022-07-20 06:33:18,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:18,081 INFO L225 Difference]: With dead ends: 35 [2022-07-20 06:33:18,081 INFO L226 Difference]: Without dead ends: 33 [2022-07-20 06:33:18,081 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 [2022-07-20 06:33:18,082 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 56 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 61 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 [2022-07-20 06:33:18,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 61 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:18,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-07-20 06:33:18,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-07-20 06:33:18,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.84375) internal successors, (59), 32 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 59 transitions. [2022-07-20 06:33:18,088 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 59 transitions. Word has length 6 [2022-07-20 06:33:18,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:18,089 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 59 transitions. [2022-07-20 06:33:18,089 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) [2022-07-20 06:33:18,090 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 59 transitions. [2022-07-20 06:33:18,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-20 06:33:18,091 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:18,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:33:18,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 06:33:18,092 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:18,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:18,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1657621241, now seen corresponding path program 1 times [2022-07-20 06:33:18,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:18,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229607797] [2022-07-20 06:33:18,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:18,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:18,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:18,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:18,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:18,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229607797] [2022-07-20 06:33:18,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229607797] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:18,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:18,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:18,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266598207] [2022-07-20 06:33:18,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:18,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:18,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:18,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:18,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:18,139 INFO L87 Difference]: Start difference. First operand 33 states and 59 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:18,152 INFO L93 Difference]: Finished difference Result 63 states and 113 transitions. [2022-07-20 06:33:18,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:18,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2022-07-20 06:33:18,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:18,153 INFO L225 Difference]: With dead ends: 63 [2022-07-20 06:33:18,153 INFO L226 Difference]: Without dead ends: 63 [2022-07-20 06:33:18,154 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 [2022-07-20 06:33:18,155 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 43 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 115 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 [2022-07-20 06:33:18,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 115 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:18,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-07-20 06:33:18,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 43. [2022-07-20 06:33:18,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.8571428571428572) internal successors, (78), 42 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 78 transitions. [2022-07-20 06:33:18,161 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 78 transitions. Word has length 16 [2022-07-20 06:33:18,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:18,163 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 78 transitions. [2022-07-20 06:33:18,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,164 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 78 transitions. [2022-07-20 06:33:18,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-20 06:33:18,164 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:18,164 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:33:18,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 06:33:18,165 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:18,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:18,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1399455803, now seen corresponding path program 1 times [2022-07-20 06:33:18,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:18,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924836434] [2022-07-20 06:33:18,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:18,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:18,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:18,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:18,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924836434] [2022-07-20 06:33:18,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924836434] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:18,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:18,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:18,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52496314] [2022-07-20 06:33:18,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:18,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:18,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:18,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:18,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:18,196 INFO L87 Difference]: Start difference. First operand 43 states and 78 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:18,208 INFO L93 Difference]: Finished difference Result 63 states and 111 transitions. [2022-07-20 06:33:18,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:18,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2022-07-20 06:33:18,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:18,209 INFO L225 Difference]: With dead ends: 63 [2022-07-20 06:33:18,209 INFO L226 Difference]: Without dead ends: 63 [2022-07-20 06:33:18,209 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 [2022-07-20 06:33:18,210 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 43 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 129 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 [2022-07-20 06:33:18,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 129 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:18,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-07-20 06:33:18,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2022-07-20 06:33:18,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.8333333333333333) internal successors, (110), 60 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 110 transitions. [2022-07-20 06:33:18,215 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 110 transitions. Word has length 16 [2022-07-20 06:33:18,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:18,216 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 110 transitions. [2022-07-20 06:33:18,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,216 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 110 transitions. [2022-07-20 06:33:18,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-20 06:33:18,216 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:18,217 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:33:18,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 06:33:18,217 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:18,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:18,217 INFO L85 PathProgramCache]: Analyzing trace with hash 153562753, now seen corresponding path program 1 times [2022-07-20 06:33:18,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:18,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658774899] [2022-07-20 06:33:18,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:18,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:18,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:18,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:18,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658774899] [2022-07-20 06:33:18,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658774899] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:18,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:18,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:18,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620900786] [2022-07-20 06:33:18,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:18,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:18,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:18,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:18,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:18,245 INFO L87 Difference]: Start difference. First operand 61 states and 110 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:18,267 INFO L93 Difference]: Finished difference Result 66 states and 113 transitions. [2022-07-20 06:33:18,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:18,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-07-20 06:33:18,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:18,269 INFO L225 Difference]: With dead ends: 66 [2022-07-20 06:33:18,269 INFO L226 Difference]: Without dead ends: 66 [2022-07-20 06:33:18,269 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 [2022-07-20 06:33:18,270 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 45 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 144 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 [2022-07-20 06:33:18,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 144 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:18,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-07-20 06:33:18,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2022-07-20 06:33:18,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.7777777777777777) internal successors, (112), 63 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 112 transitions. [2022-07-20 06:33:18,275 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 112 transitions. Word has length 17 [2022-07-20 06:33:18,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:18,276 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 112 transitions. [2022-07-20 06:33:18,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,276 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 112 transitions. [2022-07-20 06:33:18,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-20 06:33:18,277 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:18,277 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:33:18,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-20 06:33:18,277 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:18,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:18,278 INFO L85 PathProgramCache]: Analyzing trace with hash -433243261, now seen corresponding path program 1 times [2022-07-20 06:33:18,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:18,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124525937] [2022-07-20 06:33:18,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:18,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:18,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:18,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:18,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124525937] [2022-07-20 06:33:18,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124525937] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:18,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:18,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:18,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397853784] [2022-07-20 06:33:18,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:18,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:18,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:18,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:18,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:18,304 INFO L87 Difference]: Start difference. First operand 64 states and 112 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:18,318 INFO L93 Difference]: Finished difference Result 119 states and 210 transitions. [2022-07-20 06:33:18,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:18,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-07-20 06:33:18,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:18,321 INFO L225 Difference]: With dead ends: 119 [2022-07-20 06:33:18,321 INFO L226 Difference]: Without dead ends: 119 [2022-07-20 06:33:18,321 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 [2022-07-20 06:33:18,322 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 40 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 113 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 [2022-07-20 06:33:18,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 113 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:18,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-07-20 06:33:18,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 85. [2022-07-20 06:33:18,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 84 states have (on average 1.7738095238095237) internal successors, (149), 84 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 149 transitions. [2022-07-20 06:33:18,336 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 149 transitions. Word has length 17 [2022-07-20 06:33:18,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:18,337 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 149 transitions. [2022-07-20 06:33:18,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,337 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 149 transitions. [2022-07-20 06:33:18,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-20 06:33:18,338 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:18,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:33:18,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-20 06:33:18,338 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:18,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:18,339 INFO L85 PathProgramCache]: Analyzing trace with hash -175077823, now seen corresponding path program 1 times [2022-07-20 06:33:18,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:18,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627755087] [2022-07-20 06:33:18,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:18,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:18,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:18,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:18,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:18,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627755087] [2022-07-20 06:33:18,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627755087] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:18,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:18,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:18,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137508864] [2022-07-20 06:33:18,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:18,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:18,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:18,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:18,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:18,390 INFO L87 Difference]: Start difference. First operand 85 states and 149 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:18,401 INFO L93 Difference]: Finished difference Result 121 states and 208 transitions. [2022-07-20 06:33:18,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:18,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2022-07-20 06:33:18,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:18,402 INFO L225 Difference]: With dead ends: 121 [2022-07-20 06:33:18,402 INFO L226 Difference]: Without dead ends: 121 [2022-07-20 06:33:18,402 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 [2022-07-20 06:33:18,403 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 42 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 130 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 [2022-07-20 06:33:18,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 130 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:18,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-07-20 06:33:18,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2022-07-20 06:33:18,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 118 states have (on average 1.7542372881355932) internal successors, (207), 118 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 207 transitions. [2022-07-20 06:33:18,412 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 207 transitions. Word has length 17 [2022-07-20 06:33:18,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:18,412 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 207 transitions. [2022-07-20 06:33:18,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,412 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 207 transitions. [2022-07-20 06:33:18,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-20 06:33:18,413 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:18,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:33:18,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-20 06:33:18,413 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:18,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:18,414 INFO L85 PathProgramCache]: Analyzing trace with hash -545425190, now seen corresponding path program 1 times [2022-07-20 06:33:18,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:18,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708405626] [2022-07-20 06:33:18,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:18,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:18,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:18,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:18,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708405626] [2022-07-20 06:33:18,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708405626] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:18,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:18,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:18,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497729221] [2022-07-20 06:33:18,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:18,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:18,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:18,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:18,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:18,436 INFO L87 Difference]: Start difference. First operand 119 states and 207 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:18,444 INFO L93 Difference]: Finished difference Result 123 states and 208 transitions. [2022-07-20 06:33:18,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:18,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-20 06:33:18,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:18,445 INFO L225 Difference]: With dead ends: 123 [2022-07-20 06:33:18,445 INFO L226 Difference]: Without dead ends: 123 [2022-07-20 06:33:18,446 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 [2022-07-20 06:33:18,446 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 44 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 140 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 [2022-07-20 06:33:18,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 140 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:18,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-07-20 06:33:18,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2022-07-20 06:33:18,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.725) internal successors, (207), 120 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 207 transitions. [2022-07-20 06:33:18,452 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 207 transitions. Word has length 18 [2022-07-20 06:33:18,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:18,453 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 207 transitions. [2022-07-20 06:33:18,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,453 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 207 transitions. [2022-07-20 06:33:18,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-20 06:33:18,453 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:18,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:33:18,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-20 06:33:18,454 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:18,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:18,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1132231204, now seen corresponding path program 1 times [2022-07-20 06:33:18,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:18,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621008560] [2022-07-20 06:33:18,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:18,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:18,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:18,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:18,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621008560] [2022-07-20 06:33:18,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621008560] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:18,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:18,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:18,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011234691] [2022-07-20 06:33:18,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:18,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:18,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:18,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:18,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:18,477 INFO L87 Difference]: Start difference. First operand 121 states and 207 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:18,484 INFO L93 Difference]: Finished difference Result 231 states and 388 transitions. [2022-07-20 06:33:18,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:18,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-20 06:33:18,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:18,486 INFO L225 Difference]: With dead ends: 231 [2022-07-20 06:33:18,486 INFO L226 Difference]: Without dead ends: 231 [2022-07-20 06:33:18,486 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 [2022-07-20 06:33:18,487 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 42 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 115 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 [2022-07-20 06:33:18,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 115 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:18,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-07-20 06:33:18,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 229. [2022-07-20 06:33:18,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 228 states have (on average 1.6973684210526316) internal successors, (387), 228 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 387 transitions. [2022-07-20 06:33:18,497 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 387 transitions. Word has length 18 [2022-07-20 06:33:18,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:18,497 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 387 transitions. [2022-07-20 06:33:18,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,498 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 387 transitions. [2022-07-20 06:33:18,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-20 06:33:18,498 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:18,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:33:18,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-20 06:33:18,499 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:18,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:18,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1390396642, now seen corresponding path program 1 times [2022-07-20 06:33:18,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:18,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76549069] [2022-07-20 06:33:18,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:18,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:18,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:18,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:18,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76549069] [2022-07-20 06:33:18,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76549069] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:18,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:18,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:18,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029055326] [2022-07-20 06:33:18,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:18,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:18,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:18,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:18,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:18,521 INFO L87 Difference]: Start difference. First operand 229 states and 387 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:18,529 INFO L93 Difference]: Finished difference Result 287 states and 488 transitions. [2022-07-20 06:33:18,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:18,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-20 06:33:18,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:18,532 INFO L225 Difference]: With dead ends: 287 [2022-07-20 06:33:18,532 INFO L226 Difference]: Without dead ends: 287 [2022-07-20 06:33:18,533 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 [2022-07-20 06:33:18,533 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 37 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 152 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 [2022-07-20 06:33:18,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 152 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:18,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-07-20 06:33:18,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 229. [2022-07-20 06:33:18,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 228 states have (on average 1.6798245614035088) internal successors, (383), 228 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 383 transitions. [2022-07-20 06:33:18,553 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 383 transitions. Word has length 18 [2022-07-20 06:33:18,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:18,555 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 383 transitions. [2022-07-20 06:33:18,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,555 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 383 transitions. [2022-07-20 06:33:18,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-20 06:33:18,556 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:18,556 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:33:18,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-20 06:33:18,556 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:18,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:18,556 INFO L85 PathProgramCache]: Analyzing trace with hash -739214602, now seen corresponding path program 1 times [2022-07-20 06:33:18,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:18,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362776363] [2022-07-20 06:33:18,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:18,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:18,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:18,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:18,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362776363] [2022-07-20 06:33:18,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362776363] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:18,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:18,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:18,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328728614] [2022-07-20 06:33:18,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:18,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:18,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:18,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:18,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:18,599 INFO L87 Difference]: Start difference. First operand 229 states and 383 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:18,606 INFO L93 Difference]: Finished difference Result 419 states and 704 transitions. [2022-07-20 06:33:18,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:18,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-20 06:33:18,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:18,608 INFO L225 Difference]: With dead ends: 419 [2022-07-20 06:33:18,608 INFO L226 Difference]: Without dead ends: 419 [2022-07-20 06:33:18,608 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 [2022-07-20 06:33:18,609 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 34 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 109 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 [2022-07-20 06:33:18,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 109 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:18,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-07-20 06:33:18,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 321. [2022-07-20 06:33:18,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 320 states have (on average 1.646875) internal successors, (527), 320 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 527 transitions. [2022-07-20 06:33:18,617 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 527 transitions. Word has length 19 [2022-07-20 06:33:18,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:18,617 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 527 transitions. [2022-07-20 06:33:18,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,617 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 527 transitions. [2022-07-20 06:33:18,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-20 06:33:18,618 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:18,618 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:33:18,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-20 06:33:18,618 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:18,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:18,618 INFO L85 PathProgramCache]: Analyzing trace with hash -481049164, now seen corresponding path program 1 times [2022-07-20 06:33:18,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:18,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192965443] [2022-07-20 06:33:18,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:18,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:18,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:18,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:18,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192965443] [2022-07-20 06:33:18,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192965443] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:18,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:18,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:18,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318184076] [2022-07-20 06:33:18,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:18,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:18,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:18,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:18,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:18,641 INFO L87 Difference]: Start difference. First operand 321 states and 527 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:18,649 INFO L93 Difference]: Finished difference Result 443 states and 716 transitions. [2022-07-20 06:33:18,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:18,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-20 06:33:18,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:18,650 INFO L225 Difference]: With dead ends: 443 [2022-07-20 06:33:18,651 INFO L226 Difference]: Without dead ends: 443 [2022-07-20 06:33:18,651 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 [2022-07-20 06:33:18,651 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 40 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 132 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 [2022-07-20 06:33:18,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 132 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:18,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-07-20 06:33:18,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 441. [2022-07-20 06:33:18,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 440 states have (on average 1.625) internal successors, (715), 440 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 715 transitions. [2022-07-20 06:33:18,663 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 715 transitions. Word has length 19 [2022-07-20 06:33:18,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:18,663 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 715 transitions. [2022-07-20 06:33:18,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,663 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 715 transitions. [2022-07-20 06:33:18,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-20 06:33:18,664 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:18,664 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] [2022-07-20 06:33:18,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-20 06:33:18,664 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:18,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:18,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1440601487, now seen corresponding path program 1 times [2022-07-20 06:33:18,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:18,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516462259] [2022-07-20 06:33:18,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:18,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:18,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:18,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:18,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516462259] [2022-07-20 06:33:18,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516462259] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:18,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:18,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:18,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062596266] [2022-07-20 06:33:18,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:18,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:18,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:18,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:18,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:18,692 INFO L87 Difference]: Start difference. First operand 441 states and 715 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:18,713 INFO L93 Difference]: Finished difference Result 455 states and 724 transitions. [2022-07-20 06:33:18,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:18,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-07-20 06:33:18,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:18,714 INFO L225 Difference]: With dead ends: 455 [2022-07-20 06:33:18,714 INFO L226 Difference]: Without dead ends: 455 [2022-07-20 06:33:18,714 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 [2022-07-20 06:33:18,715 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 42 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 132 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 [2022-07-20 06:33:18,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 132 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:18,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-07-20 06:33:18,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 453. [2022-07-20 06:33:18,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 452 states have (on average 1.5995575221238938) internal successors, (723), 452 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 723 transitions. [2022-07-20 06:33:18,722 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 723 transitions. Word has length 20 [2022-07-20 06:33:18,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:18,722 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 723 transitions. [2022-07-20 06:33:18,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,722 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 723 transitions. [2022-07-20 06:33:18,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-20 06:33:18,723 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:18,723 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] [2022-07-20 06:33:18,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-20 06:33:18,723 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:18,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:18,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2027407501, now seen corresponding path program 1 times [2022-07-20 06:33:18,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:18,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694696704] [2022-07-20 06:33:18,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:18,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:18,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:18,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:18,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694696704] [2022-07-20 06:33:18,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694696704] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:18,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:18,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:18,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117071254] [2022-07-20 06:33:18,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:18,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:18,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:18,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:18,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:18,762 INFO L87 Difference]: Start difference. First operand 453 states and 723 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:18,770 INFO L93 Difference]: Finished difference Result 807 states and 1292 transitions. [2022-07-20 06:33:18,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:18,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-07-20 06:33:18,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:18,772 INFO L225 Difference]: With dead ends: 807 [2022-07-20 06:33:18,772 INFO L226 Difference]: Without dead ends: 807 [2022-07-20 06:33:18,773 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 [2022-07-20 06:33:18,773 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 31 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 107 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 [2022-07-20 06:33:18,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 107 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:18,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2022-07-20 06:33:18,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 645. [2022-07-20 06:33:18,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 644 states have (on average 1.5574534161490683) internal successors, (1003), 644 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 1003 transitions. [2022-07-20 06:33:18,784 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 1003 transitions. Word has length 20 [2022-07-20 06:33:18,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:18,784 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 1003 transitions. [2022-07-20 06:33:18,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,784 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 1003 transitions. [2022-07-20 06:33:18,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-20 06:33:18,785 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:18,785 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] [2022-07-20 06:33:18,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-20 06:33:18,785 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:18,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:18,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1769242063, now seen corresponding path program 1 times [2022-07-20 06:33:18,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:18,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348676608] [2022-07-20 06:33:18,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:18,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:18,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:18,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:18,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348676608] [2022-07-20 06:33:18,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348676608] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:18,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:18,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:18,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519952768] [2022-07-20 06:33:18,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:18,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:18,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:18,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:18,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:18,804 INFO L87 Difference]: Start difference. First operand 645 states and 1003 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:18,814 INFO L93 Difference]: Finished difference Result 871 states and 1332 transitions. [2022-07-20 06:33:18,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:18,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-07-20 06:33:18,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:18,817 INFO L225 Difference]: With dead ends: 871 [2022-07-20 06:33:18,817 INFO L226 Difference]: Without dead ends: 871 [2022-07-20 06:33:18,819 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 [2022-07-20 06:33:18,820 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 39 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 133 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 [2022-07-20 06:33:18,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 133 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:18,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2022-07-20 06:33:18,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 869. [2022-07-20 06:33:18,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 868 states have (on average 1.5334101382488479) internal successors, (1331), 868 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1331 transitions. [2022-07-20 06:33:18,833 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1331 transitions. Word has length 20 [2022-07-20 06:33:18,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:18,834 INFO L495 AbstractCegarLoop]: Abstraction has 869 states and 1331 transitions. [2022-07-20 06:33:18,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,834 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1331 transitions. [2022-07-20 06:33:18,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-20 06:33:18,836 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:18,836 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] [2022-07-20 06:33:18,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-20 06:33:18,837 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:18,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:18,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1575091945, now seen corresponding path program 1 times [2022-07-20 06:33:18,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:18,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528545547] [2022-07-20 06:33:18,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:18,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:18,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:18,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:18,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528545547] [2022-07-20 06:33:18,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528545547] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:18,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:18,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:18,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733789352] [2022-07-20 06:33:18,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:18,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:18,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:18,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:18,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:18,855 INFO L87 Difference]: Start difference. First operand 869 states and 1331 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) [2022-07-20 06:33:18,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:18,863 INFO L93 Difference]: Finished difference Result 887 states and 1332 transitions. [2022-07-20 06:33:18,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:18,863 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 [2022-07-20 06:33:18,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:18,866 INFO L225 Difference]: With dead ends: 887 [2022-07-20 06:33:18,866 INFO L226 Difference]: Without dead ends: 887 [2022-07-20 06:33:18,866 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 [2022-07-20 06:33:18,867 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 41 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 128 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 [2022-07-20 06:33:18,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 128 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:18,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2022-07-20 06:33:18,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 885. [2022-07-20 06:33:18,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 884 states have (on average 1.505656108597285) internal successors, (1331), 884 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1331 transitions. [2022-07-20 06:33:18,880 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1331 transitions. Word has length 21 [2022-07-20 06:33:18,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:18,880 INFO L495 AbstractCegarLoop]: Abstraction has 885 states and 1331 transitions. [2022-07-20 06:33:18,881 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) [2022-07-20 06:33:18,881 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1331 transitions. [2022-07-20 06:33:18,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-20 06:33:18,881 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:18,881 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] [2022-07-20 06:33:18,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-20 06:33:18,882 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:18,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:18,883 INFO L85 PathProgramCache]: Analyzing trace with hash 988285931, now seen corresponding path program 1 times [2022-07-20 06:33:18,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:18,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928335618] [2022-07-20 06:33:18,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:18,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:18,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:18,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:18,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928335618] [2022-07-20 06:33:18,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928335618] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:18,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:18,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:18,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833263401] [2022-07-20 06:33:18,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:18,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:18,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:18,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:18,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:18,912 INFO L87 Difference]: Start difference. First operand 885 states and 1331 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) [2022-07-20 06:33:18,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:18,927 INFO L93 Difference]: Finished difference Result 1543 states and 2324 transitions. [2022-07-20 06:33:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:18,928 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 [2022-07-20 06:33:18,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:18,934 INFO L225 Difference]: With dead ends: 1543 [2022-07-20 06:33:18,934 INFO L226 Difference]: Without dead ends: 1543 [2022-07-20 06:33:18,934 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 [2022-07-20 06:33:18,936 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 28 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 105 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 [2022-07-20 06:33:18,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 105 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:18,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2022-07-20 06:33:18,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1285. [2022-07-20 06:33:18,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 1284 states have (on average 1.4602803738317758) internal successors, (1875), 1284 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:18,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 1875 transitions. [2022-07-20 06:33:18,970 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 1875 transitions. Word has length 21 [2022-07-20 06:33:18,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:18,971 INFO L495 AbstractCegarLoop]: Abstraction has 1285 states and 1875 transitions. [2022-07-20 06:33:18,971 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) [2022-07-20 06:33:18,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 1875 transitions. [2022-07-20 06:33:18,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-20 06:33:18,973 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:18,973 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] [2022-07-20 06:33:18,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-20 06:33:18,973 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:18,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:18,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1246451369, now seen corresponding path program 1 times [2022-07-20 06:33:18,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:18,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198601590] [2022-07-20 06:33:18,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:18,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:19,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:19,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:19,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198601590] [2022-07-20 06:33:19,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198601590] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:19,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:19,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:19,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301448339] [2022-07-20 06:33:19,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:19,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:19,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:19,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:19,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:19,003 INFO L87 Difference]: Start difference. First operand 1285 states and 1875 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) [2022-07-20 06:33:19,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:19,037 INFO L93 Difference]: Finished difference Result 1703 states and 2436 transitions. [2022-07-20 06:33:19,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:19,038 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 [2022-07-20 06:33:19,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:19,041 INFO L225 Difference]: With dead ends: 1703 [2022-07-20 06:33:19,042 INFO L226 Difference]: Without dead ends: 1703 [2022-07-20 06:33:19,042 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 [2022-07-20 06:33:19,043 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 38 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 134 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 [2022-07-20 06:33:19,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 134 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:19,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2022-07-20 06:33:19,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1701. [2022-07-20 06:33:19,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1700 states have (on average 1.4323529411764706) internal successors, (2435), 1700 states have internal predecessors, (2435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:19,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2435 transitions. [2022-07-20 06:33:19,072 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2435 transitions. Word has length 21 [2022-07-20 06:33:19,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:19,072 INFO L495 AbstractCegarLoop]: Abstraction has 1701 states and 2435 transitions. [2022-07-20 06:33:19,073 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) [2022-07-20 06:33:19,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2435 transitions. [2022-07-20 06:33:19,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-20 06:33:19,074 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:19,074 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] [2022-07-20 06:33:19,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-20 06:33:19,074 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:19,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:19,075 INFO L85 PathProgramCache]: Analyzing trace with hash 572308166, now seen corresponding path program 1 times [2022-07-20 06:33:19,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:19,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197597487] [2022-07-20 06:33:19,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:19,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:19,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:19,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:19,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197597487] [2022-07-20 06:33:19,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197597487] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:19,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:19,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:19,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700317294] [2022-07-20 06:33:19,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:19,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:19,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:19,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:19,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:19,102 INFO L87 Difference]: Start difference. First operand 1701 states and 2435 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) [2022-07-20 06:33:19,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:19,113 INFO L93 Difference]: Finished difference Result 1735 states and 2436 transitions. [2022-07-20 06:33:19,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:19,114 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 [2022-07-20 06:33:19,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:19,117 INFO L225 Difference]: With dead ends: 1735 [2022-07-20 06:33:19,117 INFO L226 Difference]: Without dead ends: 1735 [2022-07-20 06:33:19,118 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 [2022-07-20 06:33:19,118 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 40 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 124 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 [2022-07-20 06:33:19,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 124 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:19,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2022-07-20 06:33:19,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1733. [2022-07-20 06:33:19,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1733 states, 1732 states have (on average 1.4058891454965359) internal successors, (2435), 1732 states have internal predecessors, (2435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:19,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 2435 transitions. [2022-07-20 06:33:19,140 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 2435 transitions. Word has length 22 [2022-07-20 06:33:19,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:19,141 INFO L495 AbstractCegarLoop]: Abstraction has 1733 states and 2435 transitions. [2022-07-20 06:33:19,141 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) [2022-07-20 06:33:19,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 2435 transitions. [2022-07-20 06:33:19,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-20 06:33:19,143 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:19,143 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:33:19,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-20 06:33:19,143 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:19,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:19,144 INFO L85 PathProgramCache]: Analyzing trace with hash -14497848, now seen corresponding path program 1 times [2022-07-20 06:33:19,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:19,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523068606] [2022-07-20 06:33:19,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:19,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:19,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:19,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:19,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523068606] [2022-07-20 06:33:19,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523068606] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:19,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:19,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:19,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115908231] [2022-07-20 06:33:19,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:19,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:19,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:19,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:19,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:19,168 INFO L87 Difference]: Start difference. First operand 1733 states and 2435 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) [2022-07-20 06:33:19,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:19,183 INFO L93 Difference]: Finished difference Result 2951 states and 4132 transitions. [2022-07-20 06:33:19,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:19,184 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 [2022-07-20 06:33:19,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:19,190 INFO L225 Difference]: With dead ends: 2951 [2022-07-20 06:33:19,191 INFO L226 Difference]: Without dead ends: 2951 [2022-07-20 06:33:19,191 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 [2022-07-20 06:33:19,192 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 25 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 103 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 [2022-07-20 06:33:19,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 103 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:19,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2022-07-20 06:33:19,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2565. [2022-07-20 06:33:19,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2565 states, 2564 states have (on average 1.361544461778471) internal successors, (3491), 2564 states have internal predecessors, (3491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:19,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2565 states to 2565 states and 3491 transitions. [2022-07-20 06:33:19,237 INFO L78 Accepts]: Start accepts. Automaton has 2565 states and 3491 transitions. Word has length 22 [2022-07-20 06:33:19,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:19,238 INFO L495 AbstractCegarLoop]: Abstraction has 2565 states and 3491 transitions. [2022-07-20 06:33:19,238 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) [2022-07-20 06:33:19,238 INFO L276 IsEmpty]: Start isEmpty. Operand 2565 states and 3491 transitions. [2022-07-20 06:33:19,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-20 06:33:19,240 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:19,240 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:33:19,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-20 06:33:19,241 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:19,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:19,241 INFO L85 PathProgramCache]: Analyzing trace with hash 243667590, now seen corresponding path program 1 times [2022-07-20 06:33:19,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:19,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536501161] [2022-07-20 06:33:19,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:19,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:19,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:19,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:19,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536501161] [2022-07-20 06:33:19,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536501161] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:19,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:19,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:19,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054724294] [2022-07-20 06:33:19,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:19,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:19,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:19,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:19,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:19,264 INFO L87 Difference]: Start difference. First operand 2565 states and 3491 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) [2022-07-20 06:33:19,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:19,281 INFO L93 Difference]: Finished difference Result 3335 states and 4420 transitions. [2022-07-20 06:33:19,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:19,282 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 [2022-07-20 06:33:19,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:19,289 INFO L225 Difference]: With dead ends: 3335 [2022-07-20 06:33:19,289 INFO L226 Difference]: Without dead ends: 3335 [2022-07-20 06:33:19,290 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 [2022-07-20 06:33:19,291 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 37 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 135 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 [2022-07-20 06:33:19,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 135 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:19,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3335 states. [2022-07-20 06:33:19,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3335 to 3333. [2022-07-20 06:33:19,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3333 states, 3332 states have (on average 1.3262304921968788) internal successors, (4419), 3332 states have internal predecessors, (4419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:19,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3333 states to 3333 states and 4419 transitions. [2022-07-20 06:33:19,337 INFO L78 Accepts]: Start accepts. Automaton has 3333 states and 4419 transitions. Word has length 22 [2022-07-20 06:33:19,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:19,337 INFO L495 AbstractCegarLoop]: Abstraction has 3333 states and 4419 transitions. [2022-07-20 06:33:19,337 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) [2022-07-20 06:33:19,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3333 states and 4419 transitions. [2022-07-20 06:33:19,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-20 06:33:19,340 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:19,340 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] [2022-07-20 06:33:19,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-20 06:33:19,341 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:19,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:19,341 INFO L85 PathProgramCache]: Analyzing trace with hash -449217570, now seen corresponding path program 1 times [2022-07-20 06:33:19,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:19,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724654647] [2022-07-20 06:33:19,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:19,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:19,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:19,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:19,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724654647] [2022-07-20 06:33:19,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724654647] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:19,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:19,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:19,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489554524] [2022-07-20 06:33:19,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:19,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:19,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:19,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:19,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:19,362 INFO L87 Difference]: Start difference. First operand 3333 states and 4419 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) [2022-07-20 06:33:19,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:19,378 INFO L93 Difference]: Finished difference Result 3399 states and 4420 transitions. [2022-07-20 06:33:19,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:19,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-07-20 06:33:19,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:19,385 INFO L225 Difference]: With dead ends: 3399 [2022-07-20 06:33:19,385 INFO L226 Difference]: Without dead ends: 3399 [2022-07-20 06:33:19,386 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 [2022-07-20 06:33:19,386 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 39 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 120 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 [2022-07-20 06:33:19,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 120 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:19,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3399 states. [2022-07-20 06:33:19,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3399 to 3397. [2022-07-20 06:33:19,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3397 states, 3396 states have (on average 1.3012367491166077) internal successors, (4419), 3396 states have internal predecessors, (4419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:19,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3397 states to 3397 states and 4419 transitions. [2022-07-20 06:33:19,433 INFO L78 Accepts]: Start accepts. Automaton has 3397 states and 4419 transitions. Word has length 23 [2022-07-20 06:33:19,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:19,433 INFO L495 AbstractCegarLoop]: Abstraction has 3397 states and 4419 transitions. [2022-07-20 06:33:19,433 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) [2022-07-20 06:33:19,433 INFO L276 IsEmpty]: Start isEmpty. Operand 3397 states and 4419 transitions. [2022-07-20 06:33:19,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-20 06:33:19,435 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:19,435 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] [2022-07-20 06:33:19,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-20 06:33:19,436 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:19,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:19,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1036023584, now seen corresponding path program 1 times [2022-07-20 06:33:19,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:19,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662129785] [2022-07-20 06:33:19,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:19,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:19,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:19,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:19,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662129785] [2022-07-20 06:33:19,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662129785] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:19,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:19,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:19,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525304176] [2022-07-20 06:33:19,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:19,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:19,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:19,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:19,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:19,448 INFO L87 Difference]: Start difference. First operand 3397 states and 4419 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) [2022-07-20 06:33:19,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:19,468 INFO L93 Difference]: Finished difference Result 5639 states and 7236 transitions. [2022-07-20 06:33:19,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:19,469 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 [2022-07-20 06:33:19,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:19,480 INFO L225 Difference]: With dead ends: 5639 [2022-07-20 06:33:19,481 INFO L226 Difference]: Without dead ends: 5639 [2022-07-20 06:33:19,481 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 [2022-07-20 06:33:19,481 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 22 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 101 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 [2022-07-20 06:33:19,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 101 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:19,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5639 states. [2022-07-20 06:33:19,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5639 to 5125. [2022-07-20 06:33:19,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 1.2620999219359874) internal successors, (6467), 5124 states have internal predecessors, (6467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:19,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 6467 transitions. [2022-07-20 06:33:19,543 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 6467 transitions. Word has length 23 [2022-07-20 06:33:19,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:19,543 INFO L495 AbstractCegarLoop]: Abstraction has 5125 states and 6467 transitions. [2022-07-20 06:33:19,543 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) [2022-07-20 06:33:19,543 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 6467 transitions. [2022-07-20 06:33:19,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-20 06:33:19,548 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:19,548 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] [2022-07-20 06:33:19,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-20 06:33:19,548 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:19,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:19,549 INFO L85 PathProgramCache]: Analyzing trace with hash -777858146, now seen corresponding path program 1 times [2022-07-20 06:33:19,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:19,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778179185] [2022-07-20 06:33:19,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:19,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:19,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:19,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:19,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778179185] [2022-07-20 06:33:19,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778179185] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:19,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:19,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:19,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970859184] [2022-07-20 06:33:19,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:19,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:19,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:19,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:19,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:19,561 INFO L87 Difference]: Start difference. First operand 5125 states and 6467 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) [2022-07-20 06:33:19,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:19,585 INFO L93 Difference]: Finished difference Result 6535 states and 7940 transitions. [2022-07-20 06:33:19,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:19,586 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 [2022-07-20 06:33:19,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:19,596 INFO L225 Difference]: With dead ends: 6535 [2022-07-20 06:33:19,596 INFO L226 Difference]: Without dead ends: 6535 [2022-07-20 06:33:19,596 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 [2022-07-20 06:33:19,597 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 36 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 136 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 [2022-07-20 06:33:19,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 136 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:19,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6535 states. [2022-07-20 06:33:19,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6535 to 6533. [2022-07-20 06:33:19,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6533 states, 6532 states have (on average 1.2154011022657685) internal successors, (7939), 6532 states have internal predecessors, (7939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:19,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6533 states to 6533 states and 7939 transitions. [2022-07-20 06:33:19,707 INFO L78 Accepts]: Start accepts. Automaton has 6533 states and 7939 transitions. Word has length 23 [2022-07-20 06:33:19,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:19,708 INFO L495 AbstractCegarLoop]: Abstraction has 6533 states and 7939 transitions. [2022-07-20 06:33:19,708 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) [2022-07-20 06:33:19,708 INFO L276 IsEmpty]: Start isEmpty. Operand 6533 states and 7939 transitions. [2022-07-20 06:33:19,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-20 06:33:19,714 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:19,714 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] [2022-07-20 06:33:19,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-20 06:33:19,714 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:19,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:19,715 INFO L85 PathProgramCache]: Analyzing trace with hash -2051743973, now seen corresponding path program 1 times [2022-07-20 06:33:19,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:19,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311109087] [2022-07-20 06:33:19,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:19,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:19,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:19,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:19,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311109087] [2022-07-20 06:33:19,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311109087] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:19,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:19,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:19,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23328568] [2022-07-20 06:33:19,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:19,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:19,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:19,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:19,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:19,730 INFO L87 Difference]: Start difference. First operand 6533 states and 7939 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) [2022-07-20 06:33:19,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:19,767 INFO L93 Difference]: Finished difference Result 6663 states and 7940 transitions. [2022-07-20 06:33:19,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:19,767 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 [2022-07-20 06:33:19,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:19,779 INFO L225 Difference]: With dead ends: 6663 [2022-07-20 06:33:19,779 INFO L226 Difference]: Without dead ends: 6663 [2022-07-20 06:33:19,779 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 [2022-07-20 06:33:19,780 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 38 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 116 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 [2022-07-20 06:33:19,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 116 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:19,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6663 states. [2022-07-20 06:33:19,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6663 to 6661. [2022-07-20 06:33:19,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6661 states, 6660 states have (on average 1.1920420420420421) internal successors, (7939), 6660 states have internal predecessors, (7939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:19,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6661 states to 6661 states and 7939 transitions. [2022-07-20 06:33:19,853 INFO L78 Accepts]: Start accepts. Automaton has 6661 states and 7939 transitions. Word has length 24 [2022-07-20 06:33:19,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:19,853 INFO L495 AbstractCegarLoop]: Abstraction has 6661 states and 7939 transitions. [2022-07-20 06:33:19,856 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) [2022-07-20 06:33:19,856 INFO L276 IsEmpty]: Start isEmpty. Operand 6661 states and 7939 transitions. [2022-07-20 06:33:19,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-20 06:33:19,861 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:19,861 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] [2022-07-20 06:33:19,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-20 06:33:19,861 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:19,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:19,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1656417309, now seen corresponding path program 1 times [2022-07-20 06:33:19,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:19,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866053824] [2022-07-20 06:33:19,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:19,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:19,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:19,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:19,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866053824] [2022-07-20 06:33:19,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866053824] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:19,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:19,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:19,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122226447] [2022-07-20 06:33:19,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:19,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:19,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:19,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:19,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:19,882 INFO L87 Difference]: Start difference. First operand 6661 states and 7939 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) [2022-07-20 06:33:19,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:19,903 INFO L93 Difference]: Finished difference Result 10757 states and 12419 transitions. [2022-07-20 06:33:19,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:19,904 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 [2022-07-20 06:33:19,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:19,917 INFO L225 Difference]: With dead ends: 10757 [2022-07-20 06:33:19,918 INFO L226 Difference]: Without dead ends: 10757 [2022-07-20 06:33:19,918 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 [2022-07-20 06:33:19,918 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 18 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 98 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 [2022-07-20 06:33:19,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 98 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:19,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10757 states. [2022-07-20 06:33:20,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10757 to 10245. [2022-07-20 06:33:20,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10245 states, 10244 states have (on average 1.1623389301054277) internal successors, (11907), 10244 states have internal predecessors, (11907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:20,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10245 states to 10245 states and 11907 transitions. [2022-07-20 06:33:20,033 INFO L78 Accepts]: Start accepts. Automaton has 10245 states and 11907 transitions. Word has length 24 [2022-07-20 06:33:20,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:20,033 INFO L495 AbstractCegarLoop]: Abstraction has 10245 states and 11907 transitions. [2022-07-20 06:33:20,033 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) [2022-07-20 06:33:20,034 INFO L276 IsEmpty]: Start isEmpty. Operand 10245 states and 11907 transitions. [2022-07-20 06:33:20,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-20 06:33:20,043 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 06:33:20,043 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] [2022-07-20 06:33:20,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-20 06:33:20,044 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 06:33:20,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 06:33:20,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1914582747, now seen corresponding path program 1 times [2022-07-20 06:33:20,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 06:33:20,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125498643] [2022-07-20 06:33:20,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 06:33:20,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 06:33:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 06:33:20,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 06:33:20,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 06:33:20,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125498643] [2022-07-20 06:33:20,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125498643] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 06:33:20,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 06:33:20,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 06:33:20,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657739245] [2022-07-20 06:33:20,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 06:33:20,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 06:33:20,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 06:33:20,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 06:33:20,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 06:33:20,062 INFO L87 Difference]: Start difference. First operand 10245 states and 11907 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) [2022-07-20 06:33:20,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 06:33:20,125 INFO L93 Difference]: Finished difference Result 12803 states and 14082 transitions. [2022-07-20 06:33:20,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 06:33:20,125 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 [2022-07-20 06:33:20,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 06:33:20,125 INFO L225 Difference]: With dead ends: 12803 [2022-07-20 06:33:20,125 INFO L226 Difference]: Without dead ends: 0 [2022-07-20 06:33:20,126 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 [2022-07-20 06:33:20,126 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 34 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 135 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 [2022-07-20 06:33:20,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 135 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 06:33:20,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-20 06:33:20,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-20 06:33:20,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 06:33:20,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-20 06:33:20,127 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2022-07-20 06:33:20,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 06:33:20,127 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-20 06:33:20,127 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) [2022-07-20 06:33:20,127 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-20 06:33:20,128 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-20 06:33:20,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-07-20 06:33:20,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-07-20 06:33:20,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-20 06:33:20,133 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 06:33:20,134 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-20 06:33:20,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 06:33:20 BoogieIcfgContainer [2022-07-20 06:33:20,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-20 06:33:20,136 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-20 06:33:20,136 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-20 06:33:20,136 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-20 06:33:20,137 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:33:17" (3/4) ... [2022-07-20 06:33:20,138 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-20 06:33:20,147 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-07-20 06:33:20,148 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-20 06:33:20,148 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-07-20 06:33:20,148 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-20 06:33:20,172 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-20 06:33:20,172 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-20 06:33:20,173 INFO L158 Benchmark]: Toolchain (without parser) took 3081.49ms. Allocated memory was 119.5MB in the beginning and 209.7MB in the end (delta: 90.2MB). Free memory was 86.7MB in the beginning and 117.0MB in the end (delta: -30.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2022-07-20 06:33:20,173 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 75.5MB. Free memory was 48.9MB in the beginning and 48.8MB in the end (delta: 29.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 06:33:20,173 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.58ms. Allocated memory is still 119.5MB. Free memory was 86.5MB in the beginning and 95.8MB in the end (delta: -9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-20 06:33:20,173 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.82ms. Allocated memory is still 119.5MB. Free memory was 95.8MB in the beginning and 94.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 06:33:20,174 INFO L158 Benchmark]: Boogie Preprocessor took 44.28ms. Allocated memory is still 119.5MB. Free memory was 94.5MB in the beginning and 93.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-20 06:33:20,174 INFO L158 Benchmark]: RCFGBuilder took 319.61ms. Allocated memory is still 119.5MB. Free memory was 93.2MB in the beginning and 80.5MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-20 06:33:20,174 INFO L158 Benchmark]: TraceAbstraction took 2426.86ms. Allocated memory was 119.5MB in the beginning and 209.7MB in the end (delta: 90.2MB). Free memory was 79.8MB in the beginning and 120.2MB in the end (delta: -40.3MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. [2022-07-20 06:33:20,174 INFO L158 Benchmark]: Witness Printer took 36.43ms. Allocated memory is still 209.7MB. Free memory was 120.2MB in the beginning and 117.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-20 06:33:20,175 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 75.5MB. Free memory was 48.9MB in the beginning and 48.8MB in the end (delta: 29.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 226.58ms. Allocated memory is still 119.5MB. Free memory was 86.5MB in the beginning and 95.8MB in the end (delta: -9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.82ms. Allocated memory is still 119.5MB. Free memory was 95.8MB in the beginning and 94.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.28ms. Allocated memory is still 119.5MB. Free memory was 94.5MB in the beginning and 93.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 319.61ms. Allocated memory is still 119.5MB. Free memory was 93.2MB in the beginning and 80.5MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2426.86ms. Allocated memory was 119.5MB in the beginning and 209.7MB in the end (delta: 90.2MB). Free memory was 79.8MB in the beginning and 120.2MB in the end (delta: -40.3MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. * Witness Printer took 36.43ms. Allocated memory is still 209.7MB. Free memory was 120.2MB in the beginning and 117.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 149]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 6]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 27, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 974 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 974 mSDsluCounter, 3211 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1228 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 134 IncrementalHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 1983 mSDtfsCounter, 134 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10245occurred in iteration=26, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 27 MinimizatonAttempts, 2072 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 516 NumberOfCodeBlocks, 516 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 489 ConstructedInterpolants, 0 QuantifiedInterpolants, 1028 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-20 06:33:20,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE