./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/locks/test_locks_13.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 574ddb4e 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_13.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 8fd6142dd23f608c3bc9ae24389b4aee583128e9e6b549483298584de0c08ecd --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 08:59:27,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 08:59:27,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 08:59:27,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 08:59:27,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 08:59:27,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 08:59:27,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 08:59:27,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 08:59:27,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 08:59:27,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 08:59:27,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 08:59:27,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 08:59:27,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 08:59:27,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 08:59:27,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 08:59:27,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 08:59:27,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 08:59:27,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 08:59:27,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 08:59:27,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 08:59:27,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 08:59:27,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 08:59:27,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 08:59:27,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 08:59:27,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 08:59:27,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 08:59:27,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 08:59:27,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 08:59:27,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 08:59:27,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 08:59:27,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 08:59:27,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 08:59:27,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 08:59:27,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 08:59:27,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 08:59:27,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 08:59:27,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 08:59:27,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 08:59:27,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 08:59:27,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 08:59:27,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 08:59:27,451 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-17 08:59:27,475 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 08:59:27,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 08:59:27,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 08:59:27,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 08:59:27,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 08:59:27,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 08:59:27,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 08:59:27,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 08:59:27,478 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 08:59:27,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 08:59:27,479 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 08:59:27,479 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-17 08:59:27,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 08:59:27,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 08:59:27,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 08:59:27,480 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-17 08:59:27,480 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-17 08:59:27,480 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-17 08:59:27,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 08:59:27,481 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-17 08:59:27,481 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 08:59:27,481 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 08:59:27,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 08:59:27,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 08:59:27,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 08:59:27,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 08:59:27,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 08:59:27,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 08:59:27,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 08:59:27,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 08:59:27,482 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 08:59:27,482 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 08:59:27,483 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 08:59:27,483 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 08:59:27,483 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fd6142dd23f608c3bc9ae24389b4aee583128e9e6b549483298584de0c08ecd [2023-02-17 08:59:27,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 08:59:27,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 08:59:27,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 08:59:27,697 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 08:59:27,700 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 08:59:27,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_13.c [2023-02-17 08:59:28,643 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 08:59:28,819 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 08:59:28,820 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_13.c [2023-02-17 08:59:28,826 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f99d489a/630c2998180a498e86dd414f9df802ba/FLAG63acbd58a [2023-02-17 08:59:28,838 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f99d489a/630c2998180a498e86dd414f9df802ba [2023-02-17 08:59:28,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 08:59:28,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 08:59:28,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 08:59:28,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 08:59:28,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 08:59:28,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 08:59:28" (1/1) ... [2023-02-17 08:59:28,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c53b24a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:59:28, skipping insertion in model container [2023-02-17 08:59:28,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 08:59:28" (1/1) ... [2023-02-17 08:59:28,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 08:59:28,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 08:59:29,027 WARN L237 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_13.c[4936,4949] [2023-02-17 08:59:29,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 08:59:29,041 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 08:59:29,073 WARN L237 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_13.c[4936,4949] [2023-02-17 08:59:29,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 08:59:29,087 INFO L208 MainTranslator]: Completed translation [2023-02-17 08:59:29,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:59:29 WrapperNode [2023-02-17 08:59:29,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 08:59:29,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 08:59:29,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 08:59:29,089 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 08:59:29,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:59:29" (1/1) ... [2023-02-17 08:59:29,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:59:29" (1/1) ... [2023-02-17 08:59:29,126 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 171 [2023-02-17 08:59:29,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 08:59:29,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 08:59:29,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 08:59:29,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 08:59:29,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:59:29" (1/1) ... [2023-02-17 08:59:29,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:59:29" (1/1) ... [2023-02-17 08:59:29,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:59:29" (1/1) ... [2023-02-17 08:59:29,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:59:29" (1/1) ... [2023-02-17 08:59:29,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:59:29" (1/1) ... [2023-02-17 08:59:29,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:59:29" (1/1) ... [2023-02-17 08:59:29,159 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:59:29" (1/1) ... [2023-02-17 08:59:29,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:59:29" (1/1) ... [2023-02-17 08:59:29,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 08:59:29,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 08:59:29,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 08:59:29,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 08:59:29,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:59:29" (1/1) ... [2023-02-17 08:59:29,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 08:59:29,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 08:59:29,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-17 08:59:29,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-17 08:59:29,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 08:59:29,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 08:59:29,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 08:59:29,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 08:59:29,288 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 08:59:29,290 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 08:59:29,465 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 08:59:29,469 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 08:59:29,470 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-17 08:59:29,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 08:59:29 BoogieIcfgContainer [2023-02-17 08:59:29,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 08:59:29,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 08:59:29,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 08:59:29,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 08:59:29,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 08:59:28" (1/3) ... [2023-02-17 08:59:29,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@255bd1f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 08:59:29, skipping insertion in model container [2023-02-17 08:59:29,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:59:29" (2/3) ... [2023-02-17 08:59:29,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@255bd1f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 08:59:29, skipping insertion in model container [2023-02-17 08:59:29,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 08:59:29" (3/3) ... [2023-02-17 08:59:29,477 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_13.c [2023-02-17 08:59:29,489 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 08:59:29,489 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-02-17 08:59:29,517 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 08:59:29,521 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@40b77e48, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 08:59:29,521 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-02-17 08:59:29,524 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 47 states have (on average 1.9361702127659575) internal successors, (91), 49 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:29,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-17 08:59:29,528 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:29,528 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-17 08:59:29,529 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:29,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:29,532 INFO L85 PathProgramCache]: Analyzing trace with hash 28705099, now seen corresponding path program 1 times [2023-02-17 08:59:29,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:29,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024628700] [2023-02-17 08:59:29,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:29,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:29,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:29,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:29,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024628700] [2023-02-17 08:59:29,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024628700] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:29,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:29,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 08:59:29,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465870897] [2023-02-17 08:59:29,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:29,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-17 08:59:29,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:29,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-17 08:59:29,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-17 08:59:29,674 INFO L87 Difference]: Start difference. First operand has 50 states, 47 states have (on average 1.9361702127659575) internal successors, (91), 49 states have internal predecessors, (91), 0 states have call successors, (0), 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) [2023-02-17 08:59:29,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:29,692 INFO L93 Difference]: Finished difference Result 50 states and 88 transitions. [2023-02-17 08:59:29,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-17 08:59:29,695 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 [2023-02-17 08:59:29,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:29,701 INFO L225 Difference]: With dead ends: 50 [2023-02-17 08:59:29,701 INFO L226 Difference]: Without dead ends: 48 [2023-02-17 08:59:29,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-17 08:59:29,707 INFO L413 NwaCegarLoop]: 88 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, 88 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 [2023-02-17 08:59:29,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:29,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-02-17 08:59:29,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-02-17 08:59:29,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 46 states have (on average 1.8695652173913044) internal successors, (86), 47 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:29,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 86 transitions. [2023-02-17 08:59:29,741 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 86 transitions. Word has length 5 [2023-02-17 08:59:29,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:29,741 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 86 transitions. [2023-02-17 08:59:29,741 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) [2023-02-17 08:59:29,742 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 86 transitions. [2023-02-17 08:59:29,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-17 08:59:29,742 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:29,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-17 08:59:29,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 08:59:29,743 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:29,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:29,743 INFO L85 PathProgramCache]: Analyzing trace with hash 889699595, now seen corresponding path program 1 times [2023-02-17 08:59:29,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:29,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063192498] [2023-02-17 08:59:29,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:29,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:29,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:29,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:29,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:29,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063192498] [2023-02-17 08:59:29,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063192498] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:29,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:29,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 08:59:29,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622732222] [2023-02-17 08:59:29,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:29,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:29,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:29,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:29,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:29,803 INFO L87 Difference]: Start difference. First operand 48 states and 86 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) [2023-02-17 08:59:29,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:29,818 INFO L93 Difference]: Finished difference Result 47 states and 85 transitions. [2023-02-17 08:59:29,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:29,819 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 [2023-02-17 08:59:29,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:29,820 INFO L225 Difference]: With dead ends: 47 [2023-02-17 08:59:29,820 INFO L226 Difference]: Without dead ends: 45 [2023-02-17 08:59:29,820 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 [2023-02-17 08:59:29,821 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 80 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:59:29,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 85 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:29,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-02-17 08:59:29,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-02-17 08:59:29,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 44 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:29,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 83 transitions. [2023-02-17 08:59:29,825 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 83 transitions. Word has length 6 [2023-02-17 08:59:29,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:29,825 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 83 transitions. [2023-02-17 08:59:29,826 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) [2023-02-17 08:59:29,826 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 83 transitions. [2023-02-17 08:59:29,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-17 08:59:29,826 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:29,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:29,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-17 08:59:29,827 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:29,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:29,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1359894467, now seen corresponding path program 1 times [2023-02-17 08:59:29,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:29,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252663182] [2023-02-17 08:59:29,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:29,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:29,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:29,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:29,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252663182] [2023-02-17 08:59:29,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252663182] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:29,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:29,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:29,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917875042] [2023-02-17 08:59:29,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:29,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:29,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:29,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:29,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:29,913 INFO L87 Difference]: Start difference. First operand 45 states and 83 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:29,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:29,938 INFO L93 Difference]: Finished difference Result 87 states and 161 transitions. [2023-02-17 08:59:29,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:29,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-02-17 08:59:29,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:29,940 INFO L225 Difference]: With dead ends: 87 [2023-02-17 08:59:29,940 INFO L226 Difference]: Without dead ends: 87 [2023-02-17 08:59:29,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:29,942 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 63 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:59:29,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 163 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:29,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-02-17 08:59:29,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 59. [2023-02-17 08:59:29,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.896551724137931) internal successors, (110), 58 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) [2023-02-17 08:59:29,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 110 transitions. [2023-02-17 08:59:29,948 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 110 transitions. Word has length 20 [2023-02-17 08:59:29,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:29,948 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 110 transitions. [2023-02-17 08:59:29,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:29,948 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 110 transitions. [2023-02-17 08:59:29,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-17 08:59:29,949 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:29,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:29,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-17 08:59:29,949 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:29,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:29,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1914004475, now seen corresponding path program 1 times [2023-02-17 08:59:29,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:29,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370211305] [2023-02-17 08:59:29,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:29,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:30,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:30,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:30,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370211305] [2023-02-17 08:59:30,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370211305] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:30,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:30,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:30,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382272567] [2023-02-17 08:59:30,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:30,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:30,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:30,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:30,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,016 INFO L87 Difference]: Start difference. First operand 59 states and 110 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:30,031 INFO L93 Difference]: Finished difference Result 87 states and 159 transitions. [2023-02-17 08:59:30,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:30,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-02-17 08:59:30,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:30,033 INFO L225 Difference]: With dead ends: 87 [2023-02-17 08:59:30,033 INFO L226 Difference]: Without dead ends: 87 [2023-02-17 08:59:30,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,034 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 63 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 185 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 [2023-02-17 08:59:30,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 185 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:30,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-02-17 08:59:30,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2023-02-17 08:59:30,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 84 states have (on average 1.880952380952381) internal successors, (158), 84 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 158 transitions. [2023-02-17 08:59:30,048 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 158 transitions. Word has length 20 [2023-02-17 08:59:30,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:30,048 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 158 transitions. [2023-02-17 08:59:30,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,049 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 158 transitions. [2023-02-17 08:59:30,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-17 08:59:30,049 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:30,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:30,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-17 08:59:30,050 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:30,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:30,051 INFO L85 PathProgramCache]: Analyzing trace with hash 793156859, now seen corresponding path program 1 times [2023-02-17 08:59:30,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:30,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751302956] [2023-02-17 08:59:30,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:30,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:30,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:30,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:30,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751302956] [2023-02-17 08:59:30,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751302956] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:30,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:30,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:30,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618767338] [2023-02-17 08:59:30,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:30,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:30,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:30,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:30,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,109 INFO L87 Difference]: Start difference. First operand 85 states and 158 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:30,120 INFO L93 Difference]: Finished difference Result 90 states and 161 transitions. [2023-02-17 08:59:30,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:30,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-02-17 08:59:30,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:30,122 INFO L225 Difference]: With dead ends: 90 [2023-02-17 08:59:30,122 INFO L226 Difference]: Without dead ends: 90 [2023-02-17 08:59:30,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,123 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 65 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:59:30,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 208 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:30,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-02-17 08:59:30,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2023-02-17 08:59:30,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.839080459770115) internal successors, (160), 87 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 160 transitions. [2023-02-17 08:59:30,140 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 160 transitions. Word has length 21 [2023-02-17 08:59:30,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:30,140 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 160 transitions. [2023-02-17 08:59:30,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,140 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 160 transitions. [2023-02-17 08:59:30,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-17 08:59:30,141 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:30,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:30,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-17 08:59:30,141 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:30,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:30,142 INFO L85 PathProgramCache]: Analyzing trace with hash -795191043, now seen corresponding path program 1 times [2023-02-17 08:59:30,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:30,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272789252] [2023-02-17 08:59:30,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:30,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:30,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:30,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:30,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:30,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272789252] [2023-02-17 08:59:30,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272789252] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:30,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:30,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:30,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136688489] [2023-02-17 08:59:30,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:30,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:30,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:30,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:30,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,171 INFO L87 Difference]: Start difference. First operand 88 states and 160 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:30,189 INFO L93 Difference]: Finished difference Result 167 states and 306 transitions. [2023-02-17 08:59:30,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:30,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-02-17 08:59:30,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:30,191 INFO L225 Difference]: With dead ends: 167 [2023-02-17 08:59:30,192 INFO L226 Difference]: Without dead ends: 167 [2023-02-17 08:59:30,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,193 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 60 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:59:30,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 161 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:30,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-02-17 08:59:30,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 117. [2023-02-17 08:59:30,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 116 states have (on average 1.8362068965517242) internal successors, (213), 116 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 213 transitions. [2023-02-17 08:59:30,217 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 213 transitions. Word has length 21 [2023-02-17 08:59:30,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:30,218 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 213 transitions. [2023-02-17 08:59:30,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,218 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 213 transitions. [2023-02-17 08:59:30,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-17 08:59:30,219 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:30,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:30,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-17 08:59:30,219 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:30,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:30,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1816259397, now seen corresponding path program 1 times [2023-02-17 08:59:30,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:30,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754814687] [2023-02-17 08:59:30,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:30,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:30,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:30,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:30,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754814687] [2023-02-17 08:59:30,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754814687] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:30,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:30,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:30,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63290183] [2023-02-17 08:59:30,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:30,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:30,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:30,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:30,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,252 INFO L87 Difference]: Start difference. First operand 117 states and 213 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:30,270 INFO L93 Difference]: Finished difference Result 169 states and 304 transitions. [2023-02-17 08:59:30,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:30,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-02-17 08:59:30,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:30,271 INFO L225 Difference]: With dead ends: 169 [2023-02-17 08:59:30,271 INFO L226 Difference]: Without dead ends: 169 [2023-02-17 08:59:30,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,272 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 62 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 186 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 [2023-02-17 08:59:30,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 186 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:30,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-02-17 08:59:30,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 167. [2023-02-17 08:59:30,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 166 states have (on average 1.8253012048192772) internal successors, (303), 166 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 303 transitions. [2023-02-17 08:59:30,283 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 303 transitions. Word has length 21 [2023-02-17 08:59:30,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:30,283 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 303 transitions. [2023-02-17 08:59:30,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,283 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 303 transitions. [2023-02-17 08:59:30,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-17 08:59:30,284 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:30,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:30,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-17 08:59:30,286 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:30,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:30,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1119094160, now seen corresponding path program 1 times [2023-02-17 08:59:30,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:30,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070215957] [2023-02-17 08:59:30,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:30,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:30,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:30,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:30,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070215957] [2023-02-17 08:59:30,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070215957] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:30,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:30,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:30,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466115242] [2023-02-17 08:59:30,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:30,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:30,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:30,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:30,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,315 INFO L87 Difference]: Start difference. First operand 167 states and 303 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:30,323 INFO L93 Difference]: Finished difference Result 171 states and 304 transitions. [2023-02-17 08:59:30,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:30,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-02-17 08:59:30,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:30,325 INFO L225 Difference]: With dead ends: 171 [2023-02-17 08:59:30,325 INFO L226 Difference]: Without dead ends: 171 [2023-02-17 08:59:30,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,326 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 64 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:59:30,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 204 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:30,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-02-17 08:59:30,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 169. [2023-02-17 08:59:30,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 168 states have (on average 1.8035714285714286) internal successors, (303), 168 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 303 transitions. [2023-02-17 08:59:30,331 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 303 transitions. Word has length 22 [2023-02-17 08:59:30,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:30,331 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 303 transitions. [2023-02-17 08:59:30,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,331 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 303 transitions. [2023-02-17 08:59:30,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-17 08:59:30,332 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:30,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:30,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-17 08:59:30,332 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:30,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:30,333 INFO L85 PathProgramCache]: Analyzing trace with hash -469253742, now seen corresponding path program 1 times [2023-02-17 08:59:30,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:30,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104097258] [2023-02-17 08:59:30,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:30,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:30,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:30,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:30,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104097258] [2023-02-17 08:59:30,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104097258] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:30,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:30,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:30,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604317677] [2023-02-17 08:59:30,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:30,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:30,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:30,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:30,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,365 INFO L87 Difference]: Start difference. First operand 169 states and 303 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:30,376 INFO L93 Difference]: Finished difference Result 327 states and 580 transitions. [2023-02-17 08:59:30,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:30,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-02-17 08:59:30,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:30,383 INFO L225 Difference]: With dead ends: 327 [2023-02-17 08:59:30,383 INFO L226 Difference]: Without dead ends: 327 [2023-02-17 08:59:30,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,383 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 62 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 163 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 [2023-02-17 08:59:30,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 163 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:30,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-02-17 08:59:30,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 325. [2023-02-17 08:59:30,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 324 states have (on average 1.787037037037037) internal successors, (579), 324 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 579 transitions. [2023-02-17 08:59:30,399 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 579 transitions. Word has length 22 [2023-02-17 08:59:30,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:30,401 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 579 transitions. [2023-02-17 08:59:30,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,401 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 579 transitions. [2023-02-17 08:59:30,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-17 08:59:30,403 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:30,403 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:30,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-17 08:59:30,404 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:30,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:30,404 INFO L85 PathProgramCache]: Analyzing trace with hash 551814612, now seen corresponding path program 1 times [2023-02-17 08:59:30,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:30,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13784370] [2023-02-17 08:59:30,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:30,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:30,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:30,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:30,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13784370] [2023-02-17 08:59:30,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13784370] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:30,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:30,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:30,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845516216] [2023-02-17 08:59:30,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:30,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:30,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:30,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:30,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,427 INFO L87 Difference]: Start difference. First operand 325 states and 579 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:30,441 INFO L93 Difference]: Finished difference Result 415 states and 744 transitions. [2023-02-17 08:59:30,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:30,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-02-17 08:59:30,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:30,443 INFO L225 Difference]: With dead ends: 415 [2023-02-17 08:59:30,443 INFO L226 Difference]: Without dead ends: 415 [2023-02-17 08:59:30,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,444 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 57 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:59:30,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 224 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:30,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2023-02-17 08:59:30,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 325. [2023-02-17 08:59:30,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 324 states have (on average 1.7746913580246915) internal successors, (575), 324 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 575 transitions. [2023-02-17 08:59:30,456 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 575 transitions. Word has length 22 [2023-02-17 08:59:30,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:30,456 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 575 transitions. [2023-02-17 08:59:30,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,456 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 575 transitions. [2023-02-17 08:59:30,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-17 08:59:30,459 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:30,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:30,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-02-17 08:59:30,460 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:30,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:30,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1661751056, now seen corresponding path program 1 times [2023-02-17 08:59:30,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:30,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977776469] [2023-02-17 08:59:30,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:30,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:30,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:30,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:30,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977776469] [2023-02-17 08:59:30,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977776469] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:30,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:30,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:30,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620068977] [2023-02-17 08:59:30,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:30,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:30,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:30,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:30,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,482 INFO L87 Difference]: Start difference. First operand 325 states and 575 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:30,497 INFO L93 Difference]: Finished difference Result 611 states and 1088 transitions. [2023-02-17 08:59:30,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:30,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-02-17 08:59:30,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:30,500 INFO L225 Difference]: With dead ends: 611 [2023-02-17 08:59:30,502 INFO L226 Difference]: Without dead ends: 611 [2023-02-17 08:59:30,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,518 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 54 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:59:30,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 157 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:30,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2023-02-17 08:59:30,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 449. [2023-02-17 08:59:30,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 448 states have (on average 1.7477678571428572) internal successors, (783), 448 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 783 transitions. [2023-02-17 08:59:30,525 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 783 transitions. Word has length 23 [2023-02-17 08:59:30,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:30,527 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 783 transitions. [2023-02-17 08:59:30,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,531 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 783 transitions. [2023-02-17 08:59:30,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-17 08:59:30,532 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:30,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:30,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-02-17 08:59:30,533 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:30,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:30,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1612147886, now seen corresponding path program 1 times [2023-02-17 08:59:30,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:30,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859108573] [2023-02-17 08:59:30,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:30,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:30,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:30,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:30,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859108573] [2023-02-17 08:59:30,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859108573] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:30,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:30,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:30,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696543145] [2023-02-17 08:59:30,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:30,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:30,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:30,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:30,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,562 INFO L87 Difference]: Start difference. First operand 449 states and 783 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:30,571 INFO L93 Difference]: Finished difference Result 635 states and 1100 transitions. [2023-02-17 08:59:30,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:30,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-02-17 08:59:30,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:30,573 INFO L225 Difference]: With dead ends: 635 [2023-02-17 08:59:30,573 INFO L226 Difference]: Without dead ends: 635 [2023-02-17 08:59:30,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,574 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 60 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 188 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 [2023-02-17 08:59:30,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 188 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:30,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2023-02-17 08:59:30,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 633. [2023-02-17 08:59:30,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 632 states have (on average 1.7389240506329113) internal successors, (1099), 632 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 1099 transitions. [2023-02-17 08:59:30,585 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 1099 transitions. Word has length 23 [2023-02-17 08:59:30,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:30,585 INFO L495 AbstractCegarLoop]: Abstraction has 633 states and 1099 transitions. [2023-02-17 08:59:30,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,585 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 1099 transitions. [2023-02-17 08:59:30,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-17 08:59:30,586 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:30,586 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:30,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-02-17 08:59:30,586 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:30,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:30,587 INFO L85 PathProgramCache]: Analyzing trace with hash 25538215, now seen corresponding path program 1 times [2023-02-17 08:59:30,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:30,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719530324] [2023-02-17 08:59:30,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:30,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:30,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:30,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:30,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719530324] [2023-02-17 08:59:30,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719530324] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:30,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:30,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:30,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691389297] [2023-02-17 08:59:30,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:30,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:30,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:30,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:30,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,618 INFO L87 Difference]: Start difference. First operand 633 states and 1099 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:30,628 INFO L93 Difference]: Finished difference Result 647 states and 1108 transitions. [2023-02-17 08:59:30,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:30,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2023-02-17 08:59:30,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:30,631 INFO L225 Difference]: With dead ends: 647 [2023-02-17 08:59:30,631 INFO L226 Difference]: Without dead ends: 647 [2023-02-17 08:59:30,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,633 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 62 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:59:30,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 196 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:30,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2023-02-17 08:59:30,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 645. [2023-02-17 08:59:30,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 644 states have (on average 1.718944099378882) internal successors, (1107), 644 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 1107 transitions. [2023-02-17 08:59:30,643 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 1107 transitions. Word has length 24 [2023-02-17 08:59:30,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:30,643 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 1107 transitions. [2023-02-17 08:59:30,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,644 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 1107 transitions. [2023-02-17 08:59:30,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-17 08:59:30,645 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:30,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:30,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-02-17 08:59:30,646 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:30,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:30,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1562809687, now seen corresponding path program 1 times [2023-02-17 08:59:30,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:30,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648465286] [2023-02-17 08:59:30,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:30,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:30,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:30,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:30,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648465286] [2023-02-17 08:59:30,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648465286] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:30,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:30,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:30,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551864677] [2023-02-17 08:59:30,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:30,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:30,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:30,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:30,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,683 INFO L87 Difference]: Start difference. First operand 645 states and 1107 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:30,693 INFO L93 Difference]: Finished difference Result 1191 states and 2060 transitions. [2023-02-17 08:59:30,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:30,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2023-02-17 08:59:30,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:30,697 INFO L225 Difference]: With dead ends: 1191 [2023-02-17 08:59:30,698 INFO L226 Difference]: Without dead ends: 1191 [2023-02-17 08:59:30,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,698 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 51 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:59:30,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 155 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:30,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2023-02-17 08:59:30,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 901. [2023-02-17 08:59:30,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 900 states have (on average 1.6833333333333333) internal successors, (1515), 900 states have internal predecessors, (1515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1515 transitions. [2023-02-17 08:59:30,712 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1515 transitions. Word has length 24 [2023-02-17 08:59:30,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:30,713 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 1515 transitions. [2023-02-17 08:59:30,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,713 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1515 transitions. [2023-02-17 08:59:30,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-17 08:59:30,714 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:30,714 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] [2023-02-17 08:59:30,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-02-17 08:59:30,715 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:30,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:30,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1711089255, now seen corresponding path program 1 times [2023-02-17 08:59:30,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:30,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216539713] [2023-02-17 08:59:30,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:30,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:30,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:30,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:30,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:30,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216539713] [2023-02-17 08:59:30,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216539713] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:30,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:30,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:30,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768782789] [2023-02-17 08:59:30,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:30,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:30,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:30,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:30,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,746 INFO L87 Difference]: Start difference. First operand 901 states and 1515 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:30,760 INFO L93 Difference]: Finished difference Result 1255 states and 2100 transitions. [2023-02-17 08:59:30,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:30,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2023-02-17 08:59:30,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:30,764 INFO L225 Difference]: With dead ends: 1255 [2023-02-17 08:59:30,764 INFO L226 Difference]: Without dead ends: 1255 [2023-02-17 08:59:30,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,766 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 59 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 189 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 [2023-02-17 08:59:30,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 189 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:30,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2023-02-17 08:59:30,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1253. [2023-02-17 08:59:30,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 1252 states have (on average 1.676517571884984) internal successors, (2099), 1252 states have internal predecessors, (2099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 2099 transitions. [2023-02-17 08:59:30,782 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 2099 transitions. Word has length 24 [2023-02-17 08:59:30,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:30,783 INFO L495 AbstractCegarLoop]: Abstraction has 1253 states and 2099 transitions. [2023-02-17 08:59:30,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 2099 transitions. [2023-02-17 08:59:30,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-17 08:59:30,785 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:30,785 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, 1, 1, 1, 1, 1] [2023-02-17 08:59:30,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-02-17 08:59:30,785 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:30,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:30,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1202246301, now seen corresponding path program 1 times [2023-02-17 08:59:30,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:30,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726783650] [2023-02-17 08:59:30,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:30,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:30,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:30,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:30,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726783650] [2023-02-17 08:59:30,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726783650] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:30,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:30,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:30,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657004221] [2023-02-17 08:59:30,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:30,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:30,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:30,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:30,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,808 INFO L87 Difference]: Start difference. First operand 1253 states and 2099 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:30,819 INFO L93 Difference]: Finished difference Result 1271 states and 2100 transitions. [2023-02-17 08:59:30,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:30,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-02-17 08:59:30,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:30,823 INFO L225 Difference]: With dead ends: 1271 [2023-02-17 08:59:30,823 INFO L226 Difference]: Without dead ends: 1271 [2023-02-17 08:59:30,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,825 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 61 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:59:30,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 192 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:30,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2023-02-17 08:59:30,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1269. [2023-02-17 08:59:30,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1268 states have (on average 1.6553627760252365) internal successors, (2099), 1268 states have internal predecessors, (2099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 2099 transitions. [2023-02-17 08:59:30,843 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 2099 transitions. Word has length 25 [2023-02-17 08:59:30,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:30,843 INFO L495 AbstractCegarLoop]: Abstraction has 1269 states and 2099 transitions. [2023-02-17 08:59:30,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 2099 transitions. [2023-02-17 08:59:30,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-17 08:59:30,845 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:30,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:30,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-02-17 08:59:30,845 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:30,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:30,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1504373093, now seen corresponding path program 1 times [2023-02-17 08:59:30,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:30,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047670223] [2023-02-17 08:59:30,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:30,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:30,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:30,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:30,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047670223] [2023-02-17 08:59:30,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047670223] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:30,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:30,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:30,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250361084] [2023-02-17 08:59:30,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:30,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:30,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:30,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:30,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,865 INFO L87 Difference]: Start difference. First operand 1269 states and 2099 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:30,880 INFO L93 Difference]: Finished difference Result 2311 states and 3860 transitions. [2023-02-17 08:59:30,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:30,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-02-17 08:59:30,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:30,886 INFO L225 Difference]: With dead ends: 2311 [2023-02-17 08:59:30,886 INFO L226 Difference]: Without dead ends: 2311 [2023-02-17 08:59:30,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,887 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 48 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:59:30,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 153 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:30,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2023-02-17 08:59:30,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 1797. [2023-02-17 08:59:30,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1797 states, 1796 states have (on average 1.614142538975501) internal successors, (2899), 1796 states have internal predecessors, (2899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 2899 transitions. [2023-02-17 08:59:30,937 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 2899 transitions. Word has length 25 [2023-02-17 08:59:30,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:30,937 INFO L495 AbstractCegarLoop]: Abstraction has 1797 states and 2899 transitions. [2023-02-17 08:59:30,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 2899 transitions. [2023-02-17 08:59:30,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-17 08:59:30,939 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:30,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:30,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-02-17 08:59:30,939 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:30,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:30,940 INFO L85 PathProgramCache]: Analyzing trace with hash 483304739, now seen corresponding path program 1 times [2023-02-17 08:59:30,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:30,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705333663] [2023-02-17 08:59:30,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:30,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:30,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:30,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:30,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705333663] [2023-02-17 08:59:30,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705333663] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:30,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:30,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:30,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456749720] [2023-02-17 08:59:30,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:30,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:30,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:30,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:30,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,954 INFO L87 Difference]: Start difference. First operand 1797 states and 2899 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:30,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:30,967 INFO L93 Difference]: Finished difference Result 2471 states and 3972 transitions. [2023-02-17 08:59:30,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:30,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-02-17 08:59:30,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:30,973 INFO L225 Difference]: With dead ends: 2471 [2023-02-17 08:59:30,974 INFO L226 Difference]: Without dead ends: 2471 [2023-02-17 08:59:30,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:30,974 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 58 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 190 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 [2023-02-17 08:59:30,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 190 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:30,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2023-02-17 08:59:30,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2469. [2023-02-17 08:59:31,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2469 states, 2468 states have (on average 1.608995137763371) internal successors, (3971), 2468 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2469 states to 2469 states and 3971 transitions. [2023-02-17 08:59:31,007 INFO L78 Accepts]: Start accepts. Automaton has 2469 states and 3971 transitions. Word has length 25 [2023-02-17 08:59:31,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:31,008 INFO L495 AbstractCegarLoop]: Abstraction has 2469 states and 3971 transitions. [2023-02-17 08:59:31,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,008 INFO L276 IsEmpty]: Start isEmpty. Operand 2469 states and 3971 transitions. [2023-02-17 08:59:31,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-17 08:59:31,009 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:31,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:31,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-02-17 08:59:31,010 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:31,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:31,010 INFO L85 PathProgramCache]: Analyzing trace with hash -608860292, now seen corresponding path program 1 times [2023-02-17 08:59:31,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:31,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938381880] [2023-02-17 08:59:31,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:31,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:31,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:31,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:31,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:31,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938381880] [2023-02-17 08:59:31,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938381880] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:31,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:31,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:31,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068524468] [2023-02-17 08:59:31,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:31,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:31,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:31,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:31,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:31,024 INFO L87 Difference]: Start difference. First operand 2469 states and 3971 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:31,038 INFO L93 Difference]: Finished difference Result 2503 states and 3972 transitions. [2023-02-17 08:59:31,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:31,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-02-17 08:59:31,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:31,044 INFO L225 Difference]: With dead ends: 2503 [2023-02-17 08:59:31,044 INFO L226 Difference]: Without dead ends: 2503 [2023-02-17 08:59:31,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:31,045 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 60 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:59:31,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 188 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:31,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2023-02-17 08:59:31,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 2501. [2023-02-17 08:59:31,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2501 states, 2500 states have (on average 1.5884) internal successors, (3971), 2500 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2501 states to 2501 states and 3971 transitions. [2023-02-17 08:59:31,076 INFO L78 Accepts]: Start accepts. Automaton has 2501 states and 3971 transitions. Word has length 26 [2023-02-17 08:59:31,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:31,076 INFO L495 AbstractCegarLoop]: Abstraction has 2501 states and 3971 transitions. [2023-02-17 08:59:31,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2501 states and 3971 transitions. [2023-02-17 08:59:31,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-17 08:59:31,078 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:31,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:31,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-02-17 08:59:31,079 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:31,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:31,079 INFO L85 PathProgramCache]: Analyzing trace with hash 2097759102, now seen corresponding path program 1 times [2023-02-17 08:59:31,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:31,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859547320] [2023-02-17 08:59:31,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:31,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:31,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:31,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:31,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859547320] [2023-02-17 08:59:31,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859547320] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:31,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:31,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:31,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465341229] [2023-02-17 08:59:31,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:31,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:31,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:31,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:31,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:31,093 INFO L87 Difference]: Start difference. First operand 2501 states and 3971 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:31,111 INFO L93 Difference]: Finished difference Result 4487 states and 7204 transitions. [2023-02-17 08:59:31,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:31,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-02-17 08:59:31,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:31,122 INFO L225 Difference]: With dead ends: 4487 [2023-02-17 08:59:31,122 INFO L226 Difference]: Without dead ends: 4487 [2023-02-17 08:59:31,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:31,123 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 45 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:59:31,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 151 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:31,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4487 states. [2023-02-17 08:59:31,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4487 to 3589. [2023-02-17 08:59:31,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3589 states, 3588 states have (on average 1.5437569676700111) internal successors, (5539), 3588 states have internal predecessors, (5539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3589 states to 3589 states and 5539 transitions. [2023-02-17 08:59:31,185 INFO L78 Accepts]: Start accepts. Automaton has 3589 states and 5539 transitions. Word has length 26 [2023-02-17 08:59:31,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:31,185 INFO L495 AbstractCegarLoop]: Abstraction has 3589 states and 5539 transitions. [2023-02-17 08:59:31,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3589 states and 5539 transitions. [2023-02-17 08:59:31,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-17 08:59:31,188 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:31,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:31,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-02-17 08:59:31,189 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:31,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:31,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1076690748, now seen corresponding path program 1 times [2023-02-17 08:59:31,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:31,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914756963] [2023-02-17 08:59:31,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:31,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:31,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:31,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:31,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914756963] [2023-02-17 08:59:31,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914756963] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:31,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:31,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:31,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098014236] [2023-02-17 08:59:31,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:31,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:31,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:31,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:31,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:31,204 INFO L87 Difference]: Start difference. First operand 3589 states and 5539 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:31,224 INFO L93 Difference]: Finished difference Result 4871 states and 7492 transitions. [2023-02-17 08:59:31,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:31,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-02-17 08:59:31,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:31,237 INFO L225 Difference]: With dead ends: 4871 [2023-02-17 08:59:31,237 INFO L226 Difference]: Without dead ends: 4871 [2023-02-17 08:59:31,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:31,238 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 57 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 191 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 [2023-02-17 08:59:31,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 191 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:31,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4871 states. [2023-02-17 08:59:31,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4871 to 4869. [2023-02-17 08:59:31,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4869 states, 4868 states have (on average 1.538824979457683) internal successors, (7491), 4868 states have internal predecessors, (7491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4869 states to 4869 states and 7491 transitions. [2023-02-17 08:59:31,304 INFO L78 Accepts]: Start accepts. Automaton has 4869 states and 7491 transitions. Word has length 26 [2023-02-17 08:59:31,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:31,305 INFO L495 AbstractCegarLoop]: Abstraction has 4869 states and 7491 transitions. [2023-02-17 08:59:31,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,305 INFO L276 IsEmpty]: Start isEmpty. Operand 4869 states and 7491 transitions. [2023-02-17 08:59:31,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-17 08:59:31,308 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:31,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:31,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-02-17 08:59:31,308 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:31,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:31,309 INFO L85 PathProgramCache]: Analyzing trace with hash 606237144, now seen corresponding path program 1 times [2023-02-17 08:59:31,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:31,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065745724] [2023-02-17 08:59:31,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:31,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:31,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:31,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:31,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065745724] [2023-02-17 08:59:31,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065745724] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:31,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:31,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:31,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766267201] [2023-02-17 08:59:31,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:31,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:31,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:31,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:31,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:31,323 INFO L87 Difference]: Start difference. First operand 4869 states and 7491 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:31,344 INFO L93 Difference]: Finished difference Result 4935 states and 7492 transitions. [2023-02-17 08:59:31,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:31,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-02-17 08:59:31,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:31,351 INFO L225 Difference]: With dead ends: 4935 [2023-02-17 08:59:31,351 INFO L226 Difference]: Without dead ends: 4935 [2023-02-17 08:59:31,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:31,352 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 59 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 184 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 [2023-02-17 08:59:31,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 184 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:31,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4935 states. [2023-02-17 08:59:31,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4935 to 4933. [2023-02-17 08:59:31,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4933 states, 4932 states have (on average 1.5188564476885644) internal successors, (7491), 4932 states have internal predecessors, (7491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4933 states to 4933 states and 7491 transitions. [2023-02-17 08:59:31,425 INFO L78 Accepts]: Start accepts. Automaton has 4933 states and 7491 transitions. Word has length 27 [2023-02-17 08:59:31,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:31,425 INFO L495 AbstractCegarLoop]: Abstraction has 4933 states and 7491 transitions. [2023-02-17 08:59:31,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,425 INFO L276 IsEmpty]: Start isEmpty. Operand 4933 states and 7491 transitions. [2023-02-17 08:59:31,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-17 08:59:31,429 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:31,429 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:31,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-02-17 08:59:31,429 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:31,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:31,429 INFO L85 PathProgramCache]: Analyzing trace with hash -982110758, now seen corresponding path program 1 times [2023-02-17 08:59:31,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:31,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416025573] [2023-02-17 08:59:31,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:31,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:31,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:31,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:31,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416025573] [2023-02-17 08:59:31,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416025573] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:31,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:31,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:31,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962117620] [2023-02-17 08:59:31,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:31,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:31,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:31,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:31,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:31,444 INFO L87 Difference]: Start difference. First operand 4933 states and 7491 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:31,484 INFO L93 Difference]: Finished difference Result 8711 states and 13380 transitions. [2023-02-17 08:59:31,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:31,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-02-17 08:59:31,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:31,496 INFO L225 Difference]: With dead ends: 8711 [2023-02-17 08:59:31,496 INFO L226 Difference]: Without dead ends: 8711 [2023-02-17 08:59:31,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:31,497 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 42 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:59:31,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 149 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:31,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8711 states. [2023-02-17 08:59:31,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8711 to 7173. [2023-02-17 08:59:31,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7173 states, 7172 states have (on average 1.4728109313998885) internal successors, (10563), 7172 states have internal predecessors, (10563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7173 states to 7173 states and 10563 transitions. [2023-02-17 08:59:31,585 INFO L78 Accepts]: Start accepts. Automaton has 7173 states and 10563 transitions. Word has length 27 [2023-02-17 08:59:31,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:31,585 INFO L495 AbstractCegarLoop]: Abstraction has 7173 states and 10563 transitions. [2023-02-17 08:59:31,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,586 INFO L276 IsEmpty]: Start isEmpty. Operand 7173 states and 10563 transitions. [2023-02-17 08:59:31,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-17 08:59:31,591 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:31,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:31,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-02-17 08:59:31,592 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:31,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:31,592 INFO L85 PathProgramCache]: Analyzing trace with hash -2003179112, now seen corresponding path program 1 times [2023-02-17 08:59:31,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:31,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610484603] [2023-02-17 08:59:31,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:31,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:31,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:31,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:31,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610484603] [2023-02-17 08:59:31,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610484603] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:31,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:31,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:31,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892540617] [2023-02-17 08:59:31,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:31,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:31,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:31,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:31,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:31,605 INFO L87 Difference]: Start difference. First operand 7173 states and 10563 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:31,634 INFO L93 Difference]: Finished difference Result 9607 states and 14084 transitions. [2023-02-17 08:59:31,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:31,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-02-17 08:59:31,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:31,646 INFO L225 Difference]: With dead ends: 9607 [2023-02-17 08:59:31,647 INFO L226 Difference]: Without dead ends: 9607 [2023-02-17 08:59:31,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:31,647 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 56 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 192 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 [2023-02-17 08:59:31,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 192 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:31,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9607 states. [2023-02-17 08:59:31,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9607 to 9605. [2023-02-17 08:59:31,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9605 states, 9604 states have (on average 1.4663681799250312) internal successors, (14083), 9604 states have internal predecessors, (14083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9605 states to 9605 states and 14083 transitions. [2023-02-17 08:59:31,777 INFO L78 Accepts]: Start accepts. Automaton has 9605 states and 14083 transitions. Word has length 27 [2023-02-17 08:59:31,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:31,777 INFO L495 AbstractCegarLoop]: Abstraction has 9605 states and 14083 transitions. [2023-02-17 08:59:31,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,777 INFO L276 IsEmpty]: Start isEmpty. Operand 9605 states and 14083 transitions. [2023-02-17 08:59:31,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-17 08:59:31,783 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:31,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:31,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-02-17 08:59:31,784 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:31,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:31,784 INFO L85 PathProgramCache]: Analyzing trace with hash -380447663, now seen corresponding path program 1 times [2023-02-17 08:59:31,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:31,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297299799] [2023-02-17 08:59:31,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:31,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:31,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:31,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:31,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:31,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297299799] [2023-02-17 08:59:31,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297299799] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:31,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:31,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:31,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209960330] [2023-02-17 08:59:31,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:31,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:31,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:31,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:31,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:31,800 INFO L87 Difference]: Start difference. First operand 9605 states and 14083 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:31,859 INFO L93 Difference]: Finished difference Result 9735 states and 14084 transitions. [2023-02-17 08:59:31,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:31,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-02-17 08:59:31,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:31,873 INFO L225 Difference]: With dead ends: 9735 [2023-02-17 08:59:31,873 INFO L226 Difference]: Without dead ends: 9735 [2023-02-17 08:59:31,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:31,874 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 58 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:59:31,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 180 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:31,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9735 states. [2023-02-17 08:59:31,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9735 to 9733. [2023-02-17 08:59:31,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9733 states, 9732 states have (on average 1.447081792026305) internal successors, (14083), 9732 states have internal predecessors, (14083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9733 states to 9733 states and 14083 transitions. [2023-02-17 08:59:31,967 INFO L78 Accepts]: Start accepts. Automaton has 9733 states and 14083 transitions. Word has length 28 [2023-02-17 08:59:31,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:31,968 INFO L495 AbstractCegarLoop]: Abstraction has 9733 states and 14083 transitions. [2023-02-17 08:59:31,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:31,971 INFO L276 IsEmpty]: Start isEmpty. Operand 9733 states and 14083 transitions. [2023-02-17 08:59:31,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-17 08:59:31,998 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:31,998 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:31,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-02-17 08:59:31,998 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:31,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:31,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1968795565, now seen corresponding path program 1 times [2023-02-17 08:59:31,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:31,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083586877] [2023-02-17 08:59:31,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:31,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:32,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:32,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:32,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083586877] [2023-02-17 08:59:32,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083586877] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:32,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:32,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:32,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185750930] [2023-02-17 08:59:32,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:32,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:32,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:32,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:32,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:32,014 INFO L87 Difference]: Start difference. First operand 9733 states and 14083 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:32,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:32,052 INFO L93 Difference]: Finished difference Result 16903 states and 24708 transitions. [2023-02-17 08:59:32,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:32,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-02-17 08:59:32,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:32,075 INFO L225 Difference]: With dead ends: 16903 [2023-02-17 08:59:32,075 INFO L226 Difference]: Without dead ends: 16903 [2023-02-17 08:59:32,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:32,076 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 39 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:59:32,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 147 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:32,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16903 states. [2023-02-17 08:59:32,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16903 to 14341. [2023-02-17 08:59:32,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14341 states, 14340 states have (on average 1.4016039051603906) internal successors, (20099), 14340 states have internal predecessors, (20099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:32,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14341 states to 14341 states and 20099 transitions. [2023-02-17 08:59:32,314 INFO L78 Accepts]: Start accepts. Automaton has 14341 states and 20099 transitions. Word has length 28 [2023-02-17 08:59:32,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:32,315 INFO L495 AbstractCegarLoop]: Abstraction has 14341 states and 20099 transitions. [2023-02-17 08:59:32,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:32,315 INFO L276 IsEmpty]: Start isEmpty. Operand 14341 states and 20099 transitions. [2023-02-17 08:59:32,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-17 08:59:32,324 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:32,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:32,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-02-17 08:59:32,325 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:32,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:32,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1305103377, now seen corresponding path program 1 times [2023-02-17 08:59:32,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:32,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767124680] [2023-02-17 08:59:32,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:32,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:32,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:32,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:32,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:32,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767124680] [2023-02-17 08:59:32,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767124680] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:32,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:32,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:32,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322518768] [2023-02-17 08:59:32,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:32,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:32,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:32,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:32,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:32,347 INFO L87 Difference]: Start difference. First operand 14341 states and 20099 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:32,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:32,387 INFO L93 Difference]: Finished difference Result 18951 states and 26372 transitions. [2023-02-17 08:59:32,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:32,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-02-17 08:59:32,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:32,408 INFO L225 Difference]: With dead ends: 18951 [2023-02-17 08:59:32,408 INFO L226 Difference]: Without dead ends: 18951 [2023-02-17 08:59:32,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:32,408 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 55 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 193 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 [2023-02-17 08:59:32,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 193 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:32,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18951 states. [2023-02-17 08:59:32,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18951 to 18949. [2023-02-17 08:59:32,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18949 states, 18948 states have (on average 1.3917563858982478) internal successors, (26371), 18948 states have internal predecessors, (26371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:32,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18949 states to 18949 states and 26371 transitions. [2023-02-17 08:59:32,628 INFO L78 Accepts]: Start accepts. Automaton has 18949 states and 26371 transitions. Word has length 28 [2023-02-17 08:59:32,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:32,628 INFO L495 AbstractCegarLoop]: Abstraction has 18949 states and 26371 transitions. [2023-02-17 08:59:32,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:32,629 INFO L276 IsEmpty]: Start isEmpty. Operand 18949 states and 26371 transitions. [2023-02-17 08:59:32,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-17 08:59:32,639 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:32,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:32,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-02-17 08:59:32,639 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:32,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:32,640 INFO L85 PathProgramCache]: Analyzing trace with hash -902905267, now seen corresponding path program 1 times [2023-02-17 08:59:32,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:32,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641855069] [2023-02-17 08:59:32,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:32,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:32,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:32,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:32,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641855069] [2023-02-17 08:59:32,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641855069] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:32,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:32,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:32,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314311197] [2023-02-17 08:59:32,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:32,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:32,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:32,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:32,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:32,652 INFO L87 Difference]: Start difference. First operand 18949 states and 26371 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:32,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:32,781 INFO L93 Difference]: Finished difference Result 19207 states and 26372 transitions. [2023-02-17 08:59:32,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:32,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2023-02-17 08:59:32,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:32,806 INFO L225 Difference]: With dead ends: 19207 [2023-02-17 08:59:32,806 INFO L226 Difference]: Without dead ends: 19207 [2023-02-17 08:59:32,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:32,807 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 57 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:59:32,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 176 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:32,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19207 states. [2023-02-17 08:59:32,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19207 to 19205. [2023-02-17 08:59:33,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19205 states, 19204 states have (on average 1.3732034992709852) internal successors, (26371), 19204 states have internal predecessors, (26371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:33,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19205 states to 19205 states and 26371 transitions. [2023-02-17 08:59:33,031 INFO L78 Accepts]: Start accepts. Automaton has 19205 states and 26371 transitions. Word has length 29 [2023-02-17 08:59:33,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:33,031 INFO L495 AbstractCegarLoop]: Abstraction has 19205 states and 26371 transitions. [2023-02-17 08:59:33,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:33,031 INFO L276 IsEmpty]: Start isEmpty. Operand 19205 states and 26371 transitions. [2023-02-17 08:59:33,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-17 08:59:33,042 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:33,043 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, 1, 1, 1, 1, 1] [2023-02-17 08:59:33,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-02-17 08:59:33,043 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:33,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:33,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1803714127, now seen corresponding path program 1 times [2023-02-17 08:59:33,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:33,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786992504] [2023-02-17 08:59:33,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:33,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:33,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:33,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:33,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786992504] [2023-02-17 08:59:33,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786992504] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:33,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:33,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:33,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813525777] [2023-02-17 08:59:33,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:33,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:33,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:33,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:33,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:33,059 INFO L87 Difference]: Start difference. First operand 19205 states and 26371 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:33,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:33,131 INFO L93 Difference]: Finished difference Result 32775 states and 45316 transitions. [2023-02-17 08:59:33,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:33,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2023-02-17 08:59:33,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:33,179 INFO L225 Difference]: With dead ends: 32775 [2023-02-17 08:59:33,179 INFO L226 Difference]: Without dead ends: 32775 [2023-02-17 08:59:33,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:33,180 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 36 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:59:33,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 145 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:33,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32775 states. [2023-02-17 08:59:33,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32775 to 28677. [2023-02-17 08:59:33,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28677 states, 28676 states have (on average 1.3302761891477193) internal successors, (38147), 28676 states have internal predecessors, (38147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:33,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28677 states to 28677 states and 38147 transitions. [2023-02-17 08:59:33,710 INFO L78 Accepts]: Start accepts. Automaton has 28677 states and 38147 transitions. Word has length 29 [2023-02-17 08:59:33,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:33,711 INFO L495 AbstractCegarLoop]: Abstraction has 28677 states and 38147 transitions. [2023-02-17 08:59:33,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:33,711 INFO L276 IsEmpty]: Start isEmpty. Operand 28677 states and 38147 transitions. [2023-02-17 08:59:33,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-17 08:59:33,729 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:33,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:33,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-02-17 08:59:33,730 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:33,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:33,730 INFO L85 PathProgramCache]: Analyzing trace with hash 782645773, now seen corresponding path program 1 times [2023-02-17 08:59:33,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:33,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83445924] [2023-02-17 08:59:33,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:33,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:33,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:33,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:33,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83445924] [2023-02-17 08:59:33,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83445924] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:33,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:33,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:33,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852841355] [2023-02-17 08:59:33,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:33,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:33,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:33,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:33,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:33,743 INFO L87 Difference]: Start difference. First operand 28677 states and 38147 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:33,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:33,817 INFO L93 Difference]: Finished difference Result 37383 states and 49156 transitions. [2023-02-17 08:59:33,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:33,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2023-02-17 08:59:33,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:33,858 INFO L225 Difference]: With dead ends: 37383 [2023-02-17 08:59:33,859 INFO L226 Difference]: Without dead ends: 37383 [2023-02-17 08:59:33,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:33,859 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 54 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 194 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 [2023-02-17 08:59:33,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 194 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:33,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37383 states. [2023-02-17 08:59:34,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37383 to 37381. [2023-02-17 08:59:34,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37381 states, 37380 states have (on average 1.315008025682183) internal successors, (49155), 37380 states have internal predecessors, (49155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:34,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37381 states to 37381 states and 49155 transitions. [2023-02-17 08:59:34,401 INFO L78 Accepts]: Start accepts. Automaton has 37381 states and 49155 transitions. Word has length 29 [2023-02-17 08:59:34,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:34,402 INFO L495 AbstractCegarLoop]: Abstraction has 37381 states and 49155 transitions. [2023-02-17 08:59:34,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:34,402 INFO L276 IsEmpty]: Start isEmpty. Operand 37381 states and 49155 transitions. [2023-02-17 08:59:34,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-17 08:59:34,417 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:34,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:34,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-02-17 08:59:34,418 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:34,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:34,419 INFO L85 PathProgramCache]: Analyzing trace with hash 80778534, now seen corresponding path program 1 times [2023-02-17 08:59:34,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:34,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117874628] [2023-02-17 08:59:34,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:34,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:34,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:34,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:34,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117874628] [2023-02-17 08:59:34,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117874628] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:34,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:34,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:34,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663041387] [2023-02-17 08:59:34,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:34,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:34,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:34,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:34,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:34,432 INFO L87 Difference]: Start difference. First operand 37381 states and 49155 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:34,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:34,514 INFO L93 Difference]: Finished difference Result 37895 states and 49156 transitions. [2023-02-17 08:59:34,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:34,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2023-02-17 08:59:34,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:34,550 INFO L225 Difference]: With dead ends: 37895 [2023-02-17 08:59:34,550 INFO L226 Difference]: Without dead ends: 37895 [2023-02-17 08:59:34,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:34,551 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 56 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 172 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 [2023-02-17 08:59:34,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 172 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:34,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37895 states. [2023-02-17 08:59:34,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37895 to 37893. [2023-02-17 08:59:34,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37893 states, 37892 states have (on average 1.2972395228544285) internal successors, (49155), 37892 states have internal predecessors, (49155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:34,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37893 states to 37893 states and 49155 transitions. [2023-02-17 08:59:34,998 INFO L78 Accepts]: Start accepts. Automaton has 37893 states and 49155 transitions. Word has length 30 [2023-02-17 08:59:34,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:34,999 INFO L495 AbstractCegarLoop]: Abstraction has 37893 states and 49155 transitions. [2023-02-17 08:59:34,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:34,999 INFO L276 IsEmpty]: Start isEmpty. Operand 37893 states and 49155 transitions. [2023-02-17 08:59:35,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-17 08:59:35,014 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:35,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:35,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-02-17 08:59:35,015 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:35,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:35,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1507569368, now seen corresponding path program 1 times [2023-02-17 08:59:35,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:35,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629862790] [2023-02-17 08:59:35,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:35,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:35,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:35,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:35,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:35,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629862790] [2023-02-17 08:59:35,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629862790] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:35,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:35,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:35,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063846413] [2023-02-17 08:59:35,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:35,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:35,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:35,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:35,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:35,028 INFO L87 Difference]: Start difference. First operand 37893 states and 49155 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:35,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:35,168 INFO L93 Difference]: Finished difference Result 73735 states and 92164 transitions. [2023-02-17 08:59:35,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:35,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2023-02-17 08:59:35,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:35,242 INFO L225 Difference]: With dead ends: 73735 [2023-02-17 08:59:35,242 INFO L226 Difference]: Without dead ends: 73735 [2023-02-17 08:59:35,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:35,243 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 54 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 163 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 [2023-02-17 08:59:35,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 163 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:35,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73735 states. [2023-02-17 08:59:35,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73735 to 73733. [2023-02-17 08:59:36,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73733 states, 73732 states have (on average 1.2499728747355288) internal successors, (92163), 73732 states have internal predecessors, (92163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:36,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73733 states to 73733 states and 92163 transitions. [2023-02-17 08:59:36,097 INFO L78 Accepts]: Start accepts. Automaton has 73733 states and 92163 transitions. Word has length 30 [2023-02-17 08:59:36,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:36,098 INFO L495 AbstractCegarLoop]: Abstraction has 73733 states and 92163 transitions. [2023-02-17 08:59:36,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:36,098 INFO L276 IsEmpty]: Start isEmpty. Operand 73733 states and 92163 transitions. [2023-02-17 08:59:36,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-17 08:59:36,126 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:36,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:36,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-02-17 08:59:36,127 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:36,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:36,127 INFO L85 PathProgramCache]: Analyzing trace with hash -486501014, now seen corresponding path program 1 times [2023-02-17 08:59:36,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:36,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489147577] [2023-02-17 08:59:36,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:36,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:36,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:36,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:36,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489147577] [2023-02-17 08:59:36,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489147577] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:36,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:36,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:36,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600017806] [2023-02-17 08:59:36,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:36,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:36,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:36,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:36,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:36,140 INFO L87 Difference]: Start difference. First operand 73733 states and 92163 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:36,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:36,496 INFO L93 Difference]: Finished difference Result 79879 states and 101380 transitions. [2023-02-17 08:59:36,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:36,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2023-02-17 08:59:36,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:36,574 INFO L225 Difference]: With dead ends: 79879 [2023-02-17 08:59:36,575 INFO L226 Difference]: Without dead ends: 79879 [2023-02-17 08:59:36,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:36,575 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 33 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:59:36,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 184 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:36,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79879 states. [2023-02-17 08:59:37,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79879 to 73733. [2023-02-17 08:59:37,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73733 states, 73732 states have (on average 1.2360847393262084) internal successors, (91139), 73732 states have internal predecessors, (91139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:37,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73733 states to 73733 states and 91139 transitions. [2023-02-17 08:59:37,458 INFO L78 Accepts]: Start accepts. Automaton has 73733 states and 91139 transitions. Word has length 30 [2023-02-17 08:59:37,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:37,458 INFO L495 AbstractCegarLoop]: Abstraction has 73733 states and 91139 transitions. [2023-02-17 08:59:37,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:37,458 INFO L276 IsEmpty]: Start isEmpty. Operand 73733 states and 91139 transitions. [2023-02-17 08:59:37,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-17 08:59:37,488 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:37,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:37,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-02-17 08:59:37,488 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:37,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:37,489 INFO L85 PathProgramCache]: Analyzing trace with hash 510205634, now seen corresponding path program 1 times [2023-02-17 08:59:37,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:37,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287341348] [2023-02-17 08:59:37,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:37,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:37,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:37,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:37,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287341348] [2023-02-17 08:59:37,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287341348] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:37,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:37,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:37,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5395220] [2023-02-17 08:59:37,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:37,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:37,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:37,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:37,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:37,502 INFO L87 Difference]: Start difference. First operand 73733 states and 91139 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:37,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:37,727 INFO L93 Difference]: Finished difference Result 121863 states and 149508 transitions. [2023-02-17 08:59:37,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:37,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2023-02-17 08:59:37,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:38,119 INFO L225 Difference]: With dead ends: 121863 [2023-02-17 08:59:38,120 INFO L226 Difference]: Without dead ends: 121863 [2023-02-17 08:59:38,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:38,120 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 30 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:59:38,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 141 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:38,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121863 states. [2023-02-17 08:59:39,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121863 to 113669. [2023-02-17 08:59:39,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113669 states, 113668 states have (on average 1.2071911179927508) internal successors, (137219), 113668 states have internal predecessors, (137219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:39,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113669 states to 113669 states and 137219 transitions. [2023-02-17 08:59:39,465 INFO L78 Accepts]: Start accepts. Automaton has 113669 states and 137219 transitions. Word has length 31 [2023-02-17 08:59:39,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:39,465 INFO L495 AbstractCegarLoop]: Abstraction has 113669 states and 137219 transitions. [2023-02-17 08:59:39,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:39,465 INFO L276 IsEmpty]: Start isEmpty. Operand 113669 states and 137219 transitions. [2023-02-17 08:59:39,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-17 08:59:39,522 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:39,523 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:39,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-02-17 08:59:39,523 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:39,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:39,523 INFO L85 PathProgramCache]: Analyzing trace with hash -510862720, now seen corresponding path program 1 times [2023-02-17 08:59:39,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:39,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645558145] [2023-02-17 08:59:39,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:39,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:39,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:39,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:39,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645558145] [2023-02-17 08:59:39,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645558145] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:39,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:39,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:39,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215312809] [2023-02-17 08:59:39,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:39,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:39,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:39,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:39,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:39,535 INFO L87 Difference]: Start difference. First operand 113669 states and 137219 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:40,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:40,139 INFO L93 Difference]: Finished difference Result 144391 states and 169988 transitions. [2023-02-17 08:59:40,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:40,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2023-02-17 08:59:40,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:40,245 INFO L225 Difference]: With dead ends: 144391 [2023-02-17 08:59:40,245 INFO L226 Difference]: Without dead ends: 144391 [2023-02-17 08:59:40,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:40,245 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 52 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 196 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 [2023-02-17 08:59:40,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 196 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:40,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144391 states. [2023-02-17 08:59:41,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144391 to 144389. [2023-02-17 08:59:41,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144389 states, 144388 states have (on average 1.177293126852647) internal successors, (169987), 144388 states have internal predecessors, (169987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:41,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144389 states to 144389 states and 169987 transitions. [2023-02-17 08:59:41,765 INFO L78 Accepts]: Start accepts. Automaton has 144389 states and 169987 transitions. Word has length 31 [2023-02-17 08:59:41,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:41,765 INFO L495 AbstractCegarLoop]: Abstraction has 144389 states and 169987 transitions. [2023-02-17 08:59:41,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:41,765 INFO L276 IsEmpty]: Start isEmpty. Operand 144389 states and 169987 transitions. [2023-02-17 08:59:41,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-17 08:59:41,846 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:41,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:41,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-02-17 08:59:41,847 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:41,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:41,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1363278403, now seen corresponding path program 1 times [2023-02-17 08:59:41,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:41,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018137417] [2023-02-17 08:59:41,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:41,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:41,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:41,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:41,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018137417] [2023-02-17 08:59:41,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018137417] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:41,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:41,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:41,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128781626] [2023-02-17 08:59:41,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:41,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:41,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:41,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:41,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:41,872 INFO L87 Difference]: Start difference. First operand 144389 states and 169987 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:42,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:42,229 INFO L93 Difference]: Finished difference Result 147463 states and 172036 transitions. [2023-02-17 08:59:42,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:42,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2023-02-17 08:59:42,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:42,743 INFO L225 Difference]: With dead ends: 147463 [2023-02-17 08:59:42,744 INFO L226 Difference]: Without dead ends: 147463 [2023-02-17 08:59:42,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:42,744 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 54 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 164 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 [2023-02-17 08:59:42,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 164 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:42,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147463 states. [2023-02-17 08:59:43,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147463 to 147461. [2023-02-17 08:59:43,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147461 states, 147460 states have (on average 1.1666553641665536) internal successors, (172035), 147460 states have internal predecessors, (172035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:44,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147461 states to 147461 states and 172035 transitions. [2023-02-17 08:59:44,375 INFO L78 Accepts]: Start accepts. Automaton has 147461 states and 172035 transitions. Word has length 32 [2023-02-17 08:59:44,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:44,375 INFO L495 AbstractCegarLoop]: Abstraction has 147461 states and 172035 transitions. [2023-02-17 08:59:44,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:44,375 INFO L276 IsEmpty]: Start isEmpty. Operand 147461 states and 172035 transitions. [2023-02-17 08:59:44,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-17 08:59:44,450 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:44,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:44,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-02-17 08:59:44,450 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:44,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:44,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1343340991, now seen corresponding path program 1 times [2023-02-17 08:59:44,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:44,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187449340] [2023-02-17 08:59:44,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:44,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:44,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:44,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:44,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187449340] [2023-02-17 08:59:44,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187449340] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:44,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:44,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:44,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145829533] [2023-02-17 08:59:44,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:44,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:44,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:44,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:44,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:44,463 INFO L87 Difference]: Start difference. First operand 147461 states and 172035 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:44,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:44,898 INFO L93 Difference]: Finished difference Result 237573 states and 270339 transitions. [2023-02-17 08:59:44,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:44,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2023-02-17 08:59:44,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:45,156 INFO L225 Difference]: With dead ends: 237573 [2023-02-17 08:59:45,156 INFO L226 Difference]: Without dead ends: 237573 [2023-02-17 08:59:45,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:45,157 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 26 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:59:45,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 138 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:45,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237573 states. [2023-02-17 08:59:47,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237573 to 229381. [2023-02-17 08:59:47,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229381 states, 229380 states have (on average 1.1428502920917256) internal successors, (262147), 229380 states have internal predecessors, (262147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:48,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229381 states to 229381 states and 262147 transitions. [2023-02-17 08:59:48,027 INFO L78 Accepts]: Start accepts. Automaton has 229381 states and 262147 transitions. Word has length 32 [2023-02-17 08:59:48,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:48,027 INFO L495 AbstractCegarLoop]: Abstraction has 229381 states and 262147 transitions. [2023-02-17 08:59:48,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:48,027 INFO L276 IsEmpty]: Start isEmpty. Operand 229381 states and 262147 transitions. [2023-02-17 08:59:48,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-17 08:59:48,161 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:59:48,161 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:48,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-02-17 08:59:48,161 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-17 08:59:48,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:59:48,162 INFO L85 PathProgramCache]: Analyzing trace with hash 322272637, now seen corresponding path program 1 times [2023-02-17 08:59:48,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:59:48,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330863604] [2023-02-17 08:59:48,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:59:48,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:59:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:59:48,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:59:48,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:59:48,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330863604] [2023-02-17 08:59:48,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330863604] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:59:48,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:59:48,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 08:59:48,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858400337] [2023-02-17 08:59:48,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:59:48,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:59:48,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:59:48,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:59:48,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:48,174 INFO L87 Difference]: Start difference. First operand 229381 states and 262147 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:49,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:59:49,246 INFO L93 Difference]: Finished difference Result 286723 states and 315394 transitions. [2023-02-17 08:59:49,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:59:49,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2023-02-17 08:59:49,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:59:49,247 INFO L225 Difference]: With dead ends: 286723 [2023-02-17 08:59:49,247 INFO L226 Difference]: Without dead ends: 0 [2023-02-17 08:59:49,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:59:49,247 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 50 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 195 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 [2023-02-17 08:59:49,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 195 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:59:49,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-17 08:59:49,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-17 08:59:49,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:49,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-17 08:59:49,248 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2023-02-17 08:59:49,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:59:49,248 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 08:59:49,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 08:59:49,248 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-17 08:59:49,248 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-17 08:59:49,250 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2023-02-17 08:59:49,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2023-02-17 08:59:49,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-02-17 08:59:49,255 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:59:49,256 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-17 08:59:49,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.02 08:59:49 BoogieIcfgContainer [2023-02-17 08:59:49,258 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-17 08:59:49,259 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-17 08:59:49,259 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-17 08:59:49,259 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-17 08:59:49,259 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 08:59:29" (3/4) ... [2023-02-17 08:59:49,261 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-17 08:59:49,270 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-02-17 08:59:49,270 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-17 08:59:49,270 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-02-17 08:59:49,270 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-17 08:59:49,311 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-17 08:59:49,312 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-17 08:59:49,312 INFO L158 Benchmark]: Toolchain (without parser) took 20470.35ms. Allocated memory was 192.9MB in the beginning and 13.5GB in the end (delta: 13.3GB). Free memory was 144.7MB in the beginning and 10.6GB in the end (delta: -10.5GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. [2023-02-17 08:59:49,312 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 155.2MB. Free memory is still 99.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 08:59:49,312 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.47ms. Allocated memory is still 192.9MB. Free memory was 144.7MB in the beginning and 133.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-17 08:59:49,312 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.33ms. Allocated memory is still 192.9MB. Free memory was 132.9MB in the beginning and 131.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 08:59:49,313 INFO L158 Benchmark]: Boogie Preprocessor took 40.30ms. Allocated memory is still 192.9MB. Free memory was 131.5MB in the beginning and 130.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 08:59:49,313 INFO L158 Benchmark]: RCFGBuilder took 302.58ms. Allocated memory is still 192.9MB. Free memory was 130.0MB in the beginning and 114.7MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-17 08:59:49,313 INFO L158 Benchmark]: TraceAbstraction took 19785.12ms. Allocated memory was 192.9MB in the beginning and 13.5GB in the end (delta: 13.3GB). Free memory was 114.0MB in the beginning and 10.6GB in the end (delta: -10.5GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. [2023-02-17 08:59:49,313 INFO L158 Benchmark]: Witness Printer took 53.04ms. Allocated memory is still 13.5GB. Free memory was 10.6GB in the beginning and 10.6GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-17 08:59:49,314 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 155.2MB. Free memory is still 99.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.47ms. Allocated memory is still 192.9MB. Free memory was 144.7MB in the beginning and 133.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.33ms. Allocated memory is still 192.9MB. Free memory was 132.9MB in the beginning and 131.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.30ms. Allocated memory is still 192.9MB. Free memory was 131.5MB in the beginning and 130.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 302.58ms. Allocated memory is still 192.9MB. Free memory was 130.0MB in the beginning and 114.7MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 19785.12ms. Allocated memory was 192.9MB in the beginning and 13.5GB in the end (delta: 13.3GB). Free memory was 114.0MB in the beginning and 10.6GB in the end (delta: -10.5GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. * Witness Printer took 53.04ms. Allocated memory is still 13.5GB. Free memory was 10.6GB in the beginning and 10.6GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 205]: 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, 50 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 19.7s, OverallIterations: 38, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.6s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2002 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2002 mSDsluCounter, 6530 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2564 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 192 IncrementalHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 3966 mSDtfsCounter, 192 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=229381occurred in iteration=37, InterpolantAutomatonStates: 113, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 12.1s AutomataMinimizationTime, 38 MinimizatonAttempts, 32806 StatesRemovedByMinimization, 35 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 951 NumberOfCodeBlocks, 951 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 913 ConstructedInterpolants, 0 QuantifiedInterpolants, 2013 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 38 InterpolantComputations, 38 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-02-17 08:59:49,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE