./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/locks/test_locks_9.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 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_9.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 04dc39fb366d4472036345a213cca0ee8b355c41bc9af7e685ecaa2d36ed9484 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 22:30:11,793 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 22:30:11,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 22:30:11,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 22:30:11,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 22:30:11,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 22:30:11,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 22:30:11,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 22:30:11,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 22:30:11,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 22:30:11,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 22:30:11,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 22:30:11,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 22:30:11,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 22:30:11,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 22:30:11,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 22:30:11,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 22:30:11,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 22:30:11,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 22:30:11,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 22:30:11,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 22:30:11,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 22:30:11,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 22:30:11,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 22:30:11,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 22:30:11,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 22:30:11,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 22:30:11,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 22:30:11,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 22:30:11,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 22:30:11,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 22:30:11,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 22:30:11,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 22:30:11,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 22:30:11,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 22:30:11,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 22:30:11,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 22:30:11,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 22:30:11,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 22:30:11,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 22:30:11,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 22:30:11,879 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-18 22:30:11,892 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 22:30:11,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 22:30:11,892 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 22:30:11,892 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 22:30:11,894 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 22:30:11,894 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 22:30:11,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 22:30:11,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 22:30:11,895 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 22:30:11,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 22:30:11,895 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 22:30:11,896 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 22:30:11,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 22:30:11,896 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 22:30:11,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 22:30:11,896 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-18 22:30:11,896 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-18 22:30:11,896 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-18 22:30:11,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 22:30:11,896 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-18 22:30:11,896 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 22:30:11,896 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 22:30:11,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 22:30:11,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 22:30:11,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 22:30:11,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 22:30:11,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 22:30:11,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 22:30:11,897 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 22:30:11,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 22:30:11,898 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 22:30:11,898 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 22:30:11,898 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 22:30:11,898 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 22:30:11,898 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04dc39fb366d4472036345a213cca0ee8b355c41bc9af7e685ecaa2d36ed9484 [2023-02-18 22:30:12,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 22:30:12,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 22:30:12,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 22:30:12,109 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 22:30:12,110 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 22:30:12,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_9.c [2023-02-18 22:30:12,971 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 22:30:13,127 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 22:30:13,128 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_9.c [2023-02-18 22:30:13,132 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcae22482/2bfcce467a734f0ca5f40b60408d1138/FLAGa70b5f68e [2023-02-18 22:30:13,142 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcae22482/2bfcce467a734f0ca5f40b60408d1138 [2023-02-18 22:30:13,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 22:30:13,144 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 22:30:13,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 22:30:13,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 22:30:13,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 22:30:13,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 10:30:13" (1/1) ... [2023-02-18 22:30:13,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cd64c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:30:13, skipping insertion in model container [2023-02-18 22:30:13,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 10:30:13" (1/1) ... [2023-02-18 22:30:13,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 22:30:13,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 22:30:13,265 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_9.c[3555,3568] [2023-02-18 22:30:13,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 22:30:13,274 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 22:30:13,287 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_9.c[3555,3568] [2023-02-18 22:30:13,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 22:30:13,296 INFO L208 MainTranslator]: Completed translation [2023-02-18 22:30:13,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:30:13 WrapperNode [2023-02-18 22:30:13,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 22:30:13,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 22:30:13,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 22:30:13,298 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 22:30:13,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:30:13" (1/1) ... [2023-02-18 22:30:13,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:30:13" (1/1) ... [2023-02-18 22:30:13,334 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 127 [2023-02-18 22:30:13,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 22:30:13,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 22:30:13,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 22:30:13,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 22:30:13,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:30:13" (1/1) ... [2023-02-18 22:30:13,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:30:13" (1/1) ... [2023-02-18 22:30:13,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:30:13" (1/1) ... [2023-02-18 22:30:13,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:30:13" (1/1) ... [2023-02-18 22:30:13,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:30:13" (1/1) ... [2023-02-18 22:30:13,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:30:13" (1/1) ... [2023-02-18 22:30:13,369 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:30:13" (1/1) ... [2023-02-18 22:30:13,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:30:13" (1/1) ... [2023-02-18 22:30:13,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 22:30:13,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 22:30:13,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 22:30:13,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 22:30:13,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:30:13" (1/1) ... [2023-02-18 22:30:13,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 22:30:13,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 22:30:13,399 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) [2023-02-18 22:30:13,418 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 [2023-02-18 22:30:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 22:30:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 22:30:13,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 22:30:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 22:30:13,512 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 22:30:13,513 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 22:30:13,691 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 22:30:13,695 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 22:30:13,695 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 22:30:13,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 10:30:13 BoogieIcfgContainer [2023-02-18 22:30:13,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 22:30:13,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 22:30:13,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 22:30:13,700 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 22:30:13,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 10:30:13" (1/3) ... [2023-02-18 22:30:13,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bc21b72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 10:30:13, skipping insertion in model container [2023-02-18 22:30:13,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 10:30:13" (2/3) ... [2023-02-18 22:30:13,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bc21b72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 10:30:13, skipping insertion in model container [2023-02-18 22:30:13,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 10:30:13" (3/3) ... [2023-02-18 22:30:13,702 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_9.c [2023-02-18 22:30:13,730 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 22:30:13,730 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-02-18 22:30:13,781 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 22:30:13,785 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;@782a3347, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 22:30:13,785 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-02-18 22:30:13,788 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 37 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:13,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 22:30:13,791 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:13,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 22:30:13,792 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:13,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:13,795 INFO L85 PathProgramCache]: Analyzing trace with hash 28702923, now seen corresponding path program 1 times [2023-02-18 22:30:13,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:13,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892351268] [2023-02-18 22:30:13,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:13,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:13,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:13,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:13,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892351268] [2023-02-18 22:30:13,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892351268] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:13,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:13,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 22:30:13,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14714129] [2023-02-18 22:30:13,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:13,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-18 22:30:13,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:13,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-18 22:30:13,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 22:30:13,935 INFO L87 Difference]: Start difference. First operand has 38 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 37 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:13,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:13,949 INFO L93 Difference]: Finished difference Result 38 states and 64 transitions. [2023-02-18 22:30:13,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-18 22:30:13,952 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 [2023-02-18 22:30:13,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:13,969 INFO L225 Difference]: With dead ends: 38 [2023-02-18 22:30:13,971 INFO L226 Difference]: Without dead ends: 36 [2023-02-18 22:30:13,973 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 [2023-02-18 22:30:13,976 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:13,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:13,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-18 22:30:13,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-02-18 22:30:13,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.8235294117647058) internal successors, (62), 35 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:13,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 62 transitions. [2023-02-18 22:30:13,997 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 62 transitions. Word has length 5 [2023-02-18 22:30:13,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:13,998 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 62 transitions. [2023-02-18 22:30:13,998 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) [2023-02-18 22:30:13,998 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 62 transitions. [2023-02-18 22:30:13,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 22:30:13,999 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:13,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 22:30:13,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 22:30:13,999 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:14,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:14,000 INFO L85 PathProgramCache]: Analyzing trace with hash 889697419, now seen corresponding path program 1 times [2023-02-18 22:30:14,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:14,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792931457] [2023-02-18 22:30:14,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:14,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:14,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:14,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:14,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792931457] [2023-02-18 22:30:14,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792931457] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:14,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:14,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 22:30:14,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348521236] [2023-02-18 22:30:14,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:14,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:14,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:14,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:14,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:14,034 INFO L87 Difference]: Start difference. First operand 36 states and 62 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:14,045 INFO L93 Difference]: Finished difference Result 35 states and 61 transitions. [2023-02-18 22:30:14,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:14,046 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 [2023-02-18 22:30:14,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:14,047 INFO L225 Difference]: With dead ends: 35 [2023-02-18 22:30:14,047 INFO L226 Difference]: Without dead ends: 33 [2023-02-18 22:30:14,047 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 [2023-02-18 22:30:14,048 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 56 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:14,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 61 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:14,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-02-18 22:30:14,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-02-18 22:30:14,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.84375) internal successors, (59), 32 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 59 transitions. [2023-02-18 22:30:14,051 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 59 transitions. Word has length 6 [2023-02-18 22:30:14,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:14,052 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 59 transitions. [2023-02-18 22:30:14,052 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) [2023-02-18 22:30:14,052 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 59 transitions. [2023-02-18 22:30:14,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-18 22:30:14,052 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:14,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 22:30:14,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 22:30:14,053 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:14,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:14,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1657621241, now seen corresponding path program 1 times [2023-02-18 22:30:14,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:14,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597162948] [2023-02-18 22:30:14,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:14,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:14,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:14,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:14,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597162948] [2023-02-18 22:30:14,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597162948] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:14,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:14,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:14,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184042779] [2023-02-18 22:30:14,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:14,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:14,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:14,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:14,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:14,124 INFO L87 Difference]: Start difference. First operand 33 states and 59 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:14,143 INFO L93 Difference]: Finished difference Result 63 states and 113 transitions. [2023-02-18 22:30:14,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:14,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-02-18 22:30:14,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:14,145 INFO L225 Difference]: With dead ends: 63 [2023-02-18 22:30:14,145 INFO L226 Difference]: Without dead ends: 63 [2023-02-18 22:30:14,146 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 [2023-02-18 22:30:14,147 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 43 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:14,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 115 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:14,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-02-18 22:30:14,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 43. [2023-02-18 22:30:14,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.8571428571428572) internal successors, (78), 42 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 78 transitions. [2023-02-18 22:30:14,153 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 78 transitions. Word has length 16 [2023-02-18 22:30:14,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:14,153 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 78 transitions. [2023-02-18 22:30:14,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,153 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 78 transitions. [2023-02-18 22:30:14,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-18 22:30:14,154 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:14,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 22:30:14,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 22:30:14,154 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:14,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:14,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1399455803, now seen corresponding path program 1 times [2023-02-18 22:30:14,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:14,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266391109] [2023-02-18 22:30:14,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:14,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:14,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:14,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:14,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266391109] [2023-02-18 22:30:14,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266391109] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:14,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:14,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:14,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620684629] [2023-02-18 22:30:14,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:14,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:14,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:14,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:14,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:14,198 INFO L87 Difference]: Start difference. First operand 43 states and 78 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:14,218 INFO L93 Difference]: Finished difference Result 63 states and 111 transitions. [2023-02-18 22:30:14,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:14,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-02-18 22:30:14,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:14,220 INFO L225 Difference]: With dead ends: 63 [2023-02-18 22:30:14,220 INFO L226 Difference]: Without dead ends: 63 [2023-02-18 22:30:14,220 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 [2023-02-18 22:30:14,221 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 43 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:14,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 129 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:14,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-02-18 22:30:14,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2023-02-18 22:30:14,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.8333333333333333) internal successors, (110), 60 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 110 transitions. [2023-02-18 22:30:14,227 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 110 transitions. Word has length 16 [2023-02-18 22:30:14,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:14,228 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 110 transitions. [2023-02-18 22:30:14,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,228 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 110 transitions. [2023-02-18 22:30:14,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-18 22:30:14,229 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:14,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 22:30:14,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 22:30:14,229 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:14,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:14,230 INFO L85 PathProgramCache]: Analyzing trace with hash 153562753, now seen corresponding path program 1 times [2023-02-18 22:30:14,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:14,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646193627] [2023-02-18 22:30:14,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:14,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:14,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:14,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:14,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646193627] [2023-02-18 22:30:14,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646193627] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:14,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:14,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:14,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826116911] [2023-02-18 22:30:14,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:14,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:14,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:14,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:14,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:14,277 INFO L87 Difference]: Start difference. First operand 61 states and 110 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:14,297 INFO L93 Difference]: Finished difference Result 66 states and 113 transitions. [2023-02-18 22:30:14,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:14,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-02-18 22:30:14,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:14,299 INFO L225 Difference]: With dead ends: 66 [2023-02-18 22:30:14,302 INFO L226 Difference]: Without dead ends: 66 [2023-02-18 22:30:14,302 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 [2023-02-18 22:30:14,303 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 45 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:14,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 144 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:14,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-02-18 22:30:14,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2023-02-18 22:30:14,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.7777777777777777) internal successors, (112), 63 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 112 transitions. [2023-02-18 22:30:14,311 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 112 transitions. Word has length 17 [2023-02-18 22:30:14,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:14,311 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 112 transitions. [2023-02-18 22:30:14,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,312 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 112 transitions. [2023-02-18 22:30:14,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-18 22:30:14,312 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:14,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 22:30:14,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-18 22:30:14,313 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:14,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:14,313 INFO L85 PathProgramCache]: Analyzing trace with hash -433243261, now seen corresponding path program 1 times [2023-02-18 22:30:14,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:14,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522838302] [2023-02-18 22:30:14,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:14,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:14,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:14,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:14,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522838302] [2023-02-18 22:30:14,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522838302] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:14,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:14,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:14,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505290903] [2023-02-18 22:30:14,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:14,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:14,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:14,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:14,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:14,341 INFO L87 Difference]: Start difference. First operand 64 states and 112 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:14,351 INFO L93 Difference]: Finished difference Result 119 states and 210 transitions. [2023-02-18 22:30:14,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:14,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-02-18 22:30:14,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:14,353 INFO L225 Difference]: With dead ends: 119 [2023-02-18 22:30:14,353 INFO L226 Difference]: Without dead ends: 119 [2023-02-18 22:30:14,353 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 [2023-02-18 22:30:14,354 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 40 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:14,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 113 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:14,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-02-18 22:30:14,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 85. [2023-02-18 22:30:14,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 84 states have (on average 1.7738095238095237) internal successors, (149), 84 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 149 transitions. [2023-02-18 22:30:14,360 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 149 transitions. Word has length 17 [2023-02-18 22:30:14,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:14,361 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 149 transitions. [2023-02-18 22:30:14,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,361 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 149 transitions. [2023-02-18 22:30:14,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-18 22:30:14,362 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:14,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 22:30:14,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-18 22:30:14,362 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:14,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:14,363 INFO L85 PathProgramCache]: Analyzing trace with hash -175077823, now seen corresponding path program 1 times [2023-02-18 22:30:14,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:14,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431204244] [2023-02-18 22:30:14,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:14,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:14,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:14,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:14,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:14,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431204244] [2023-02-18 22:30:14,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431204244] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:14,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:14,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:14,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931215755] [2023-02-18 22:30:14,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:14,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:14,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:14,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:14,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:14,408 INFO L87 Difference]: Start difference. First operand 85 states and 149 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:14,419 INFO L93 Difference]: Finished difference Result 121 states and 208 transitions. [2023-02-18 22:30:14,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:14,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-02-18 22:30:14,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:14,420 INFO L225 Difference]: With dead ends: 121 [2023-02-18 22:30:14,420 INFO L226 Difference]: Without dead ends: 121 [2023-02-18 22:30:14,420 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 [2023-02-18 22:30:14,421 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 42 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:14,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 130 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:14,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-02-18 22:30:14,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2023-02-18 22:30:14,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 118 states have (on average 1.7542372881355932) internal successors, (207), 118 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 207 transitions. [2023-02-18 22:30:14,428 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 207 transitions. Word has length 17 [2023-02-18 22:30:14,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:14,428 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 207 transitions. [2023-02-18 22:30:14,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,428 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 207 transitions. [2023-02-18 22:30:14,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-18 22:30:14,430 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:14,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 22:30:14,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-18 22:30:14,437 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:14,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:14,438 INFO L85 PathProgramCache]: Analyzing trace with hash -545425190, now seen corresponding path program 1 times [2023-02-18 22:30:14,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:14,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113359122] [2023-02-18 22:30:14,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:14,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:14,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:14,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:14,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113359122] [2023-02-18 22:30:14,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113359122] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:14,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:14,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:14,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313717218] [2023-02-18 22:30:14,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:14,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:14,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:14,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:14,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:14,475 INFO L87 Difference]: Start difference. First operand 119 states and 207 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:14,495 INFO L93 Difference]: Finished difference Result 123 states and 208 transitions. [2023-02-18 22:30:14,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:14,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-02-18 22:30:14,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:14,511 INFO L225 Difference]: With dead ends: 123 [2023-02-18 22:30:14,511 INFO L226 Difference]: Without dead ends: 123 [2023-02-18 22:30:14,511 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 [2023-02-18 22:30:14,512 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 44 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:14,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 140 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:14,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-02-18 22:30:14,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2023-02-18 22:30:14,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.725) internal successors, (207), 120 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 207 transitions. [2023-02-18 22:30:14,517 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 207 transitions. Word has length 18 [2023-02-18 22:30:14,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:14,518 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 207 transitions. [2023-02-18 22:30:14,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,518 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 207 transitions. [2023-02-18 22:30:14,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-18 22:30:14,519 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:14,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 22:30:14,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-18 22:30:14,519 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:14,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:14,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1132231204, now seen corresponding path program 1 times [2023-02-18 22:30:14,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:14,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078644058] [2023-02-18 22:30:14,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:14,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:14,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:14,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:14,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078644058] [2023-02-18 22:30:14,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078644058] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:14,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:14,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:14,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809297658] [2023-02-18 22:30:14,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:14,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:14,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:14,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:14,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:14,542 INFO L87 Difference]: Start difference. First operand 121 states and 207 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:14,550 INFO L93 Difference]: Finished difference Result 231 states and 388 transitions. [2023-02-18 22:30:14,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:14,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-02-18 22:30:14,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:14,551 INFO L225 Difference]: With dead ends: 231 [2023-02-18 22:30:14,551 INFO L226 Difference]: Without dead ends: 231 [2023-02-18 22:30:14,552 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 [2023-02-18 22:30:14,552 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 42 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:14,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 115 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:14,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-02-18 22:30:14,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 229. [2023-02-18 22:30:14,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 228 states have (on average 1.6973684210526316) internal successors, (387), 228 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 387 transitions. [2023-02-18 22:30:14,560 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 387 transitions. Word has length 18 [2023-02-18 22:30:14,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:14,561 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 387 transitions. [2023-02-18 22:30:14,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,561 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 387 transitions. [2023-02-18 22:30:14,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-18 22:30:14,562 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:14,562 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 22:30:14,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-18 22:30:14,562 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:14,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:14,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1390396642, now seen corresponding path program 1 times [2023-02-18 22:30:14,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:14,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994726273] [2023-02-18 22:30:14,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:14,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:14,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:14,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:14,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994726273] [2023-02-18 22:30:14,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994726273] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:14,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:14,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:14,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356087569] [2023-02-18 22:30:14,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:14,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:14,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:14,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:14,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:14,584 INFO L87 Difference]: Start difference. First operand 229 states and 387 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:14,590 INFO L93 Difference]: Finished difference Result 287 states and 488 transitions. [2023-02-18 22:30:14,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:14,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-02-18 22:30:14,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:14,593 INFO L225 Difference]: With dead ends: 287 [2023-02-18 22:30:14,593 INFO L226 Difference]: Without dead ends: 287 [2023-02-18 22:30:14,593 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 [2023-02-18 22:30:14,595 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 37 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:14,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 152 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:14,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-02-18 22:30:14,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 229. [2023-02-18 22:30:14,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 228 states have (on average 1.6798245614035088) internal successors, (383), 228 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 383 transitions. [2023-02-18 22:30:14,616 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 383 transitions. Word has length 18 [2023-02-18 22:30:14,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:14,616 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 383 transitions. [2023-02-18 22:30:14,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,617 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 383 transitions. [2023-02-18 22:30:14,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-18 22:30:14,618 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:14,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 22:30:14,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-02-18 22:30:14,620 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:14,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:14,620 INFO L85 PathProgramCache]: Analyzing trace with hash -739214602, now seen corresponding path program 1 times [2023-02-18 22:30:14,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:14,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916399694] [2023-02-18 22:30:14,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:14,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:14,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:14,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:14,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916399694] [2023-02-18 22:30:14,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916399694] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:14,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:14,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:14,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55760425] [2023-02-18 22:30:14,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:14,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:14,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:14,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:14,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:14,651 INFO L87 Difference]: Start difference. First operand 229 states and 383 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:14,662 INFO L93 Difference]: Finished difference Result 419 states and 704 transitions. [2023-02-18 22:30:14,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:14,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-02-18 22:30:14,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:14,664 INFO L225 Difference]: With dead ends: 419 [2023-02-18 22:30:14,665 INFO L226 Difference]: Without dead ends: 419 [2023-02-18 22:30:14,665 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 [2023-02-18 22:30:14,666 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 34 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:14,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 109 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:14,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2023-02-18 22:30:14,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 321. [2023-02-18 22:30:14,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 320 states have (on average 1.646875) internal successors, (527), 320 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 527 transitions. [2023-02-18 22:30:14,672 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 527 transitions. Word has length 19 [2023-02-18 22:30:14,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:14,672 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 527 transitions. [2023-02-18 22:30:14,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,672 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 527 transitions. [2023-02-18 22:30:14,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-18 22:30:14,673 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:14,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 22:30:14,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-02-18 22:30:14,674 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:14,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:14,674 INFO L85 PathProgramCache]: Analyzing trace with hash -481049164, now seen corresponding path program 1 times [2023-02-18 22:30:14,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:14,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457447291] [2023-02-18 22:30:14,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:14,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:14,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:14,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:14,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457447291] [2023-02-18 22:30:14,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457447291] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:14,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:14,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:14,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260589595] [2023-02-18 22:30:14,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:14,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:14,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:14,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:14,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:14,691 INFO L87 Difference]: Start difference. First operand 321 states and 527 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:14,699 INFO L93 Difference]: Finished difference Result 443 states and 716 transitions. [2023-02-18 22:30:14,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:14,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-02-18 22:30:14,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:14,701 INFO L225 Difference]: With dead ends: 443 [2023-02-18 22:30:14,701 INFO L226 Difference]: Without dead ends: 443 [2023-02-18 22:30:14,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:14,702 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 40 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:14,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 132 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:14,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-02-18 22:30:14,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 441. [2023-02-18 22:30:14,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 440 states have (on average 1.625) internal successors, (715), 440 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 715 transitions. [2023-02-18 22:30:14,708 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 715 transitions. Word has length 19 [2023-02-18 22:30:14,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:14,709 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 715 transitions. [2023-02-18 22:30:14,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,709 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 715 transitions. [2023-02-18 22:30:14,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-18 22:30:14,710 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:14,710 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 22:30:14,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-02-18 22:30:14,710 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:14,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:14,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1440601487, now seen corresponding path program 1 times [2023-02-18 22:30:14,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:14,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415611659] [2023-02-18 22:30:14,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:14,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:14,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:14,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:14,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415611659] [2023-02-18 22:30:14,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415611659] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:14,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:14,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:14,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125577672] [2023-02-18 22:30:14,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:14,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:14,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:14,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:14,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:14,727 INFO L87 Difference]: Start difference. First operand 441 states and 715 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:14,735 INFO L93 Difference]: Finished difference Result 455 states and 724 transitions. [2023-02-18 22:30:14,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:14,735 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 [2023-02-18 22:30:14,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:14,736 INFO L225 Difference]: With dead ends: 455 [2023-02-18 22:30:14,736 INFO L226 Difference]: Without dead ends: 455 [2023-02-18 22:30:14,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:14,738 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 42 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:14,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 132 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:14,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-02-18 22:30:14,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 453. [2023-02-18 22:30:14,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 452 states have (on average 1.5995575221238938) internal successors, (723), 452 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 723 transitions. [2023-02-18 22:30:14,744 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 723 transitions. Word has length 20 [2023-02-18 22:30:14,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:14,744 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 723 transitions. [2023-02-18 22:30:14,745 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) [2023-02-18 22:30:14,745 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 723 transitions. [2023-02-18 22:30:14,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-18 22:30:14,745 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:14,746 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] [2023-02-18 22:30:14,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-02-18 22:30:14,746 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:14,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:14,746 INFO L85 PathProgramCache]: Analyzing trace with hash -2027407501, now seen corresponding path program 1 times [2023-02-18 22:30:14,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:14,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481286236] [2023-02-18 22:30:14,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:14,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:14,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:14,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:14,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481286236] [2023-02-18 22:30:14,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481286236] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:14,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:14,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:14,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005334273] [2023-02-18 22:30:14,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:14,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:14,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:14,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:14,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:14,762 INFO L87 Difference]: Start difference. First operand 453 states and 723 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:14,771 INFO L93 Difference]: Finished difference Result 807 states and 1292 transitions. [2023-02-18 22:30:14,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:14,771 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 [2023-02-18 22:30:14,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:14,774 INFO L225 Difference]: With dead ends: 807 [2023-02-18 22:30:14,774 INFO L226 Difference]: Without dead ends: 807 [2023-02-18 22:30:14,774 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 [2023-02-18 22:30:14,775 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 31 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:14,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 107 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:14,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2023-02-18 22:30:14,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 645. [2023-02-18 22:30:14,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 644 states have (on average 1.5574534161490683) internal successors, (1003), 644 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 1003 transitions. [2023-02-18 22:30:14,785 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 1003 transitions. Word has length 20 [2023-02-18 22:30:14,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:14,785 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 1003 transitions. [2023-02-18 22:30:14,785 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) [2023-02-18 22:30:14,786 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 1003 transitions. [2023-02-18 22:30:14,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-18 22:30:14,786 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:14,786 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] [2023-02-18 22:30:14,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-02-18 22:30:14,787 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:14,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:14,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1769242063, now seen corresponding path program 1 times [2023-02-18 22:30:14,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:14,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251124067] [2023-02-18 22:30:14,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:14,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:14,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:14,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:14,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251124067] [2023-02-18 22:30:14,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251124067] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:14,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:14,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:14,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481997176] [2023-02-18 22:30:14,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:14,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:14,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:14,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:14,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:14,808 INFO L87 Difference]: Start difference. First operand 645 states and 1003 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:14,820 INFO L93 Difference]: Finished difference Result 871 states and 1332 transitions. [2023-02-18 22:30:14,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:14,821 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 [2023-02-18 22:30:14,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:14,823 INFO L225 Difference]: With dead ends: 871 [2023-02-18 22:30:14,823 INFO L226 Difference]: Without dead ends: 871 [2023-02-18 22:30:14,825 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 [2023-02-18 22:30:14,825 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 39 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:14,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 133 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:14,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2023-02-18 22:30:14,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 869. [2023-02-18 22:30:14,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 868 states have (on average 1.5334101382488479) internal successors, (1331), 868 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1331 transitions. [2023-02-18 22:30:14,844 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1331 transitions. Word has length 20 [2023-02-18 22:30:14,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:14,844 INFO L495 AbstractCegarLoop]: Abstraction has 869 states and 1331 transitions. [2023-02-18 22:30:14,844 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) [2023-02-18 22:30:14,845 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1331 transitions. [2023-02-18 22:30:14,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-18 22:30:14,847 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:14,847 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] [2023-02-18 22:30:14,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-02-18 22:30:14,848 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:14,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:14,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1575091945, now seen corresponding path program 1 times [2023-02-18 22:30:14,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:14,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465958382] [2023-02-18 22:30:14,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:14,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:14,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:14,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:14,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465958382] [2023-02-18 22:30:14,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465958382] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:14,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:14,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:14,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764141665] [2023-02-18 22:30:14,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:14,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:14,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:14,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:14,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:14,881 INFO L87 Difference]: Start difference. First operand 869 states and 1331 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:14,891 INFO L93 Difference]: Finished difference Result 887 states and 1332 transitions. [2023-02-18 22:30:14,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:14,891 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 [2023-02-18 22:30:14,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:14,893 INFO L225 Difference]: With dead ends: 887 [2023-02-18 22:30:14,893 INFO L226 Difference]: Without dead ends: 887 [2023-02-18 22:30:14,893 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 [2023-02-18 22:30:14,894 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 41 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:14,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 128 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:14,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2023-02-18 22:30:14,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 885. [2023-02-18 22:30:14,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 884 states have (on average 1.505656108597285) internal successors, (1331), 884 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1331 transitions. [2023-02-18 22:30:14,907 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1331 transitions. Word has length 21 [2023-02-18 22:30:14,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:14,908 INFO L495 AbstractCegarLoop]: Abstraction has 885 states and 1331 transitions. [2023-02-18 22:30:14,908 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) [2023-02-18 22:30:14,908 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1331 transitions. [2023-02-18 22:30:14,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-18 22:30:14,909 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:14,909 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] [2023-02-18 22:30:14,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-02-18 22:30:14,909 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:14,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:14,910 INFO L85 PathProgramCache]: Analyzing trace with hash 988285931, now seen corresponding path program 1 times [2023-02-18 22:30:14,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:14,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377361693] [2023-02-18 22:30:14,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:14,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:14,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:14,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:14,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377361693] [2023-02-18 22:30:14,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377361693] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:14,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:14,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:14,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069762985] [2023-02-18 22:30:14,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:14,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:14,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:14,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:14,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:14,945 INFO L87 Difference]: Start difference. First operand 885 states and 1331 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:14,959 INFO L93 Difference]: Finished difference Result 1543 states and 2324 transitions. [2023-02-18 22:30:14,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:14,959 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 [2023-02-18 22:30:14,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:14,963 INFO L225 Difference]: With dead ends: 1543 [2023-02-18 22:30:14,963 INFO L226 Difference]: Without dead ends: 1543 [2023-02-18 22:30:14,965 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 [2023-02-18 22:30:14,966 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 28 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:14,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 105 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:14,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2023-02-18 22:30:14,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1285. [2023-02-18 22:30:14,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 1284 states have (on average 1.4602803738317758) internal successors, (1875), 1284 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:14,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 1875 transitions. [2023-02-18 22:30:14,982 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 1875 transitions. Word has length 21 [2023-02-18 22:30:14,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:14,983 INFO L495 AbstractCegarLoop]: Abstraction has 1285 states and 1875 transitions. [2023-02-18 22:30:14,983 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) [2023-02-18 22:30:14,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 1875 transitions. [2023-02-18 22:30:14,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-18 22:30:14,984 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:14,984 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] [2023-02-18 22:30:14,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-02-18 22:30:14,985 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:14,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:14,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1246451369, now seen corresponding path program 1 times [2023-02-18 22:30:14,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:14,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450524084] [2023-02-18 22:30:14,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:14,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:15,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:15,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:15,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450524084] [2023-02-18 22:30:15,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450524084] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:15,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:15,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:15,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189033576] [2023-02-18 22:30:15,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:15,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:15,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:15,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:15,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:15,007 INFO L87 Difference]: Start difference. First operand 1285 states and 1875 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:15,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:15,020 INFO L93 Difference]: Finished difference Result 1703 states and 2436 transitions. [2023-02-18 22:30:15,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:15,020 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 [2023-02-18 22:30:15,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:15,024 INFO L225 Difference]: With dead ends: 1703 [2023-02-18 22:30:15,025 INFO L226 Difference]: Without dead ends: 1703 [2023-02-18 22:30:15,025 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 [2023-02-18 22:30:15,026 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 38 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:15,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 134 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:15,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2023-02-18 22:30:15,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1701. [2023-02-18 22:30:15,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1700 states have (on average 1.4323529411764706) internal successors, (2435), 1700 states have internal predecessors, (2435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:15,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2435 transitions. [2023-02-18 22:30:15,046 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2435 transitions. Word has length 21 [2023-02-18 22:30:15,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:15,046 INFO L495 AbstractCegarLoop]: Abstraction has 1701 states and 2435 transitions. [2023-02-18 22:30:15,046 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) [2023-02-18 22:30:15,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2435 transitions. [2023-02-18 22:30:15,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-18 22:30:15,047 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:15,048 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] [2023-02-18 22:30:15,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-02-18 22:30:15,048 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:15,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:15,048 INFO L85 PathProgramCache]: Analyzing trace with hash 572308166, now seen corresponding path program 1 times [2023-02-18 22:30:15,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:15,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803745854] [2023-02-18 22:30:15,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:15,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:15,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:15,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:15,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803745854] [2023-02-18 22:30:15,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803745854] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:15,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:15,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:15,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619053521] [2023-02-18 22:30:15,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:15,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:15,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:15,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:15,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:15,061 INFO L87 Difference]: Start difference. First operand 1701 states and 2435 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:15,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:15,071 INFO L93 Difference]: Finished difference Result 1735 states and 2436 transitions. [2023-02-18 22:30:15,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:15,072 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 [2023-02-18 22:30:15,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:15,075 INFO L225 Difference]: With dead ends: 1735 [2023-02-18 22:30:15,075 INFO L226 Difference]: Without dead ends: 1735 [2023-02-18 22:30:15,075 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 [2023-02-18 22:30:15,076 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 40 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:15,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 124 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:15,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2023-02-18 22:30:15,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1733. [2023-02-18 22:30:15,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1733 states, 1732 states have (on average 1.4058891454965359) internal successors, (2435), 1732 states have internal predecessors, (2435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:15,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 2435 transitions. [2023-02-18 22:30:15,095 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 2435 transitions. Word has length 22 [2023-02-18 22:30:15,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:15,096 INFO L495 AbstractCegarLoop]: Abstraction has 1733 states and 2435 transitions. [2023-02-18 22:30:15,096 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) [2023-02-18 22:30:15,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 2435 transitions. [2023-02-18 22:30:15,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-18 22:30:15,097 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:15,097 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] [2023-02-18 22:30:15,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-02-18 22:30:15,098 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:15,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:15,109 INFO L85 PathProgramCache]: Analyzing trace with hash -14497848, now seen corresponding path program 1 times [2023-02-18 22:30:15,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:15,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823289491] [2023-02-18 22:30:15,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:15,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:15,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:15,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:15,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823289491] [2023-02-18 22:30:15,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823289491] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:15,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:15,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:15,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919810951] [2023-02-18 22:30:15,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:15,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:15,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:15,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:15,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:15,125 INFO L87 Difference]: Start difference. First operand 1733 states and 2435 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:15,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:15,138 INFO L93 Difference]: Finished difference Result 2951 states and 4132 transitions. [2023-02-18 22:30:15,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:15,139 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 [2023-02-18 22:30:15,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:15,144 INFO L225 Difference]: With dead ends: 2951 [2023-02-18 22:30:15,145 INFO L226 Difference]: Without dead ends: 2951 [2023-02-18 22:30:15,145 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 [2023-02-18 22:30:15,146 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 25 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:15,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 103 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:15,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2023-02-18 22:30:15,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2565. [2023-02-18 22:30:15,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2565 states, 2564 states have (on average 1.361544461778471) internal successors, (3491), 2564 states have internal predecessors, (3491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:15,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2565 states to 2565 states and 3491 transitions. [2023-02-18 22:30:15,178 INFO L78 Accepts]: Start accepts. Automaton has 2565 states and 3491 transitions. Word has length 22 [2023-02-18 22:30:15,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:15,178 INFO L495 AbstractCegarLoop]: Abstraction has 2565 states and 3491 transitions. [2023-02-18 22:30:15,178 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) [2023-02-18 22:30:15,178 INFO L276 IsEmpty]: Start isEmpty. Operand 2565 states and 3491 transitions. [2023-02-18 22:30:15,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-18 22:30:15,180 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:15,180 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] [2023-02-18 22:30:15,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-02-18 22:30:15,181 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:15,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:15,182 INFO L85 PathProgramCache]: Analyzing trace with hash 243667590, now seen corresponding path program 1 times [2023-02-18 22:30:15,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:15,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715795657] [2023-02-18 22:30:15,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:15,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:15,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:15,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:15,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715795657] [2023-02-18 22:30:15,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715795657] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:15,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:15,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:15,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801096885] [2023-02-18 22:30:15,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:15,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:15,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:15,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:15,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:15,199 INFO L87 Difference]: Start difference. First operand 2565 states and 3491 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:15,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:15,214 INFO L93 Difference]: Finished difference Result 3335 states and 4420 transitions. [2023-02-18 22:30:15,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:15,214 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 [2023-02-18 22:30:15,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:15,220 INFO L225 Difference]: With dead ends: 3335 [2023-02-18 22:30:15,221 INFO L226 Difference]: Without dead ends: 3335 [2023-02-18 22:30:15,221 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 [2023-02-18 22:30:15,221 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 37 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:15,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 135 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:15,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3335 states. [2023-02-18 22:30:15,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3335 to 3333. [2023-02-18 22:30:15,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3333 states, 3332 states have (on average 1.3262304921968788) internal successors, (4419), 3332 states have internal predecessors, (4419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:15,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3333 states to 3333 states and 4419 transitions. [2023-02-18 22:30:15,263 INFO L78 Accepts]: Start accepts. Automaton has 3333 states and 4419 transitions. Word has length 22 [2023-02-18 22:30:15,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:15,263 INFO L495 AbstractCegarLoop]: Abstraction has 3333 states and 4419 transitions. [2023-02-18 22:30:15,263 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) [2023-02-18 22:30:15,263 INFO L276 IsEmpty]: Start isEmpty. Operand 3333 states and 4419 transitions. [2023-02-18 22:30:15,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-18 22:30:15,266 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:15,266 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] [2023-02-18 22:30:15,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-02-18 22:30:15,266 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:15,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:15,266 INFO L85 PathProgramCache]: Analyzing trace with hash -449217570, now seen corresponding path program 1 times [2023-02-18 22:30:15,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:15,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041742409] [2023-02-18 22:30:15,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:15,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:15,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:15,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:15,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041742409] [2023-02-18 22:30:15,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041742409] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:15,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:15,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:15,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406490173] [2023-02-18 22:30:15,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:15,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:15,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:15,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:15,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:15,286 INFO L87 Difference]: Start difference. First operand 3333 states and 4419 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:15,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:15,301 INFO L93 Difference]: Finished difference Result 3399 states and 4420 transitions. [2023-02-18 22:30:15,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:15,302 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 [2023-02-18 22:30:15,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:15,308 INFO L225 Difference]: With dead ends: 3399 [2023-02-18 22:30:15,308 INFO L226 Difference]: Without dead ends: 3399 [2023-02-18 22:30:15,309 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 [2023-02-18 22:30:15,310 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 39 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:15,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 120 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:15,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3399 states. [2023-02-18 22:30:15,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3399 to 3397. [2023-02-18 22:30:15,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3397 states, 3396 states have (on average 1.3012367491166077) internal successors, (4419), 3396 states have internal predecessors, (4419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:15,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3397 states to 3397 states and 4419 transitions. [2023-02-18 22:30:15,370 INFO L78 Accepts]: Start accepts. Automaton has 3397 states and 4419 transitions. Word has length 23 [2023-02-18 22:30:15,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:15,370 INFO L495 AbstractCegarLoop]: Abstraction has 3397 states and 4419 transitions. [2023-02-18 22:30:15,371 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) [2023-02-18 22:30:15,371 INFO L276 IsEmpty]: Start isEmpty. Operand 3397 states and 4419 transitions. [2023-02-18 22:30:15,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-18 22:30:15,373 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:15,373 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] [2023-02-18 22:30:15,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-02-18 22:30:15,373 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:15,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:15,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1036023584, now seen corresponding path program 1 times [2023-02-18 22:30:15,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:15,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516829727] [2023-02-18 22:30:15,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:15,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:15,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:15,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:15,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516829727] [2023-02-18 22:30:15,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516829727] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:15,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:15,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:15,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398141505] [2023-02-18 22:30:15,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:15,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:15,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:15,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:15,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:15,390 INFO L87 Difference]: Start difference. First operand 3397 states and 4419 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:15,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:15,412 INFO L93 Difference]: Finished difference Result 5639 states and 7236 transitions. [2023-02-18 22:30:15,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:15,412 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 [2023-02-18 22:30:15,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:15,436 INFO L225 Difference]: With dead ends: 5639 [2023-02-18 22:30:15,437 INFO L226 Difference]: Without dead ends: 5639 [2023-02-18 22:30:15,437 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 [2023-02-18 22:30:15,437 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 22 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:15,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 101 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:15,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5639 states. [2023-02-18 22:30:15,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5639 to 5125. [2023-02-18 22:30:15,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 1.2620999219359874) internal successors, (6467), 5124 states have internal predecessors, (6467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:15,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 6467 transitions. [2023-02-18 22:30:15,500 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 6467 transitions. Word has length 23 [2023-02-18 22:30:15,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:15,500 INFO L495 AbstractCegarLoop]: Abstraction has 5125 states and 6467 transitions. [2023-02-18 22:30:15,501 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) [2023-02-18 22:30:15,501 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 6467 transitions. [2023-02-18 22:30:15,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-18 22:30:15,506 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:15,506 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] [2023-02-18 22:30:15,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-02-18 22:30:15,506 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:15,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:15,507 INFO L85 PathProgramCache]: Analyzing trace with hash -777858146, now seen corresponding path program 1 times [2023-02-18 22:30:15,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:15,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816036613] [2023-02-18 22:30:15,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:15,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:15,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:15,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:15,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816036613] [2023-02-18 22:30:15,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816036613] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:15,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:15,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:15,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370745723] [2023-02-18 22:30:15,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:15,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:15,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:15,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:15,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:15,521 INFO L87 Difference]: Start difference. First operand 5125 states and 6467 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:15,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:15,544 INFO L93 Difference]: Finished difference Result 6535 states and 7940 transitions. [2023-02-18 22:30:15,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:15,544 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 [2023-02-18 22:30:15,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:15,553 INFO L225 Difference]: With dead ends: 6535 [2023-02-18 22:30:15,553 INFO L226 Difference]: Without dead ends: 6535 [2023-02-18 22:30:15,553 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 [2023-02-18 22:30:15,555 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 36 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:15,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 136 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:15,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6535 states. [2023-02-18 22:30:15,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6535 to 6533. [2023-02-18 22:30:15,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6533 states, 6532 states have (on average 1.2154011022657685) internal successors, (7939), 6532 states have internal predecessors, (7939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:15,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6533 states to 6533 states and 7939 transitions. [2023-02-18 22:30:15,661 INFO L78 Accepts]: Start accepts. Automaton has 6533 states and 7939 transitions. Word has length 23 [2023-02-18 22:30:15,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:15,661 INFO L495 AbstractCegarLoop]: Abstraction has 6533 states and 7939 transitions. [2023-02-18 22:30:15,662 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) [2023-02-18 22:30:15,662 INFO L276 IsEmpty]: Start isEmpty. Operand 6533 states and 7939 transitions. [2023-02-18 22:30:15,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-18 22:30:15,666 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:15,666 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] [2023-02-18 22:30:15,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-02-18 22:30:15,667 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:15,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:15,667 INFO L85 PathProgramCache]: Analyzing trace with hash -2051743973, now seen corresponding path program 1 times [2023-02-18 22:30:15,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:15,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649900140] [2023-02-18 22:30:15,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:15,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:15,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:15,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:15,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:15,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649900140] [2023-02-18 22:30:15,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649900140] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:15,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:15,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:15,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976361111] [2023-02-18 22:30:15,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:15,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:15,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:15,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:15,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:15,680 INFO L87 Difference]: Start difference. First operand 6533 states and 7939 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:15,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:15,720 INFO L93 Difference]: Finished difference Result 6663 states and 7940 transitions. [2023-02-18 22:30:15,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:15,720 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 [2023-02-18 22:30:15,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:15,727 INFO L225 Difference]: With dead ends: 6663 [2023-02-18 22:30:15,728 INFO L226 Difference]: Without dead ends: 6663 [2023-02-18 22:30:15,728 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 [2023-02-18 22:30:15,729 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 38 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:15,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 116 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:15,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6663 states. [2023-02-18 22:30:15,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6663 to 6661. [2023-02-18 22:30:15,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6661 states, 6660 states have (on average 1.1920420420420421) internal successors, (7939), 6660 states have internal predecessors, (7939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:15,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6661 states to 6661 states and 7939 transitions. [2023-02-18 22:30:15,810 INFO L78 Accepts]: Start accepts. Automaton has 6661 states and 7939 transitions. Word has length 24 [2023-02-18 22:30:15,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:15,811 INFO L495 AbstractCegarLoop]: Abstraction has 6661 states and 7939 transitions. [2023-02-18 22:30:15,813 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) [2023-02-18 22:30:15,813 INFO L276 IsEmpty]: Start isEmpty. Operand 6661 states and 7939 transitions. [2023-02-18 22:30:15,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-18 22:30:15,818 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:15,818 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] [2023-02-18 22:30:15,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-02-18 22:30:15,818 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:15,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:15,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1656417309, now seen corresponding path program 1 times [2023-02-18 22:30:15,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:15,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501603237] [2023-02-18 22:30:15,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:15,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:15,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:15,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:15,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501603237] [2023-02-18 22:30:15,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501603237] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:15,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:15,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:15,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601000829] [2023-02-18 22:30:15,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:15,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:15,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:15,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:15,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:15,832 INFO L87 Difference]: Start difference. First operand 6661 states and 7939 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:15,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:15,870 INFO L93 Difference]: Finished difference Result 10757 states and 12419 transitions. [2023-02-18 22:30:15,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:15,871 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 [2023-02-18 22:30:15,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:15,882 INFO L225 Difference]: With dead ends: 10757 [2023-02-18 22:30:15,882 INFO L226 Difference]: Without dead ends: 10757 [2023-02-18 22:30:15,883 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 [2023-02-18 22:30:15,883 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 18 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:15,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 98 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:15,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10757 states. [2023-02-18 22:30:16,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10757 to 10245. [2023-02-18 22:30:16,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10245 states, 10244 states have (on average 1.1623389301054277) internal successors, (11907), 10244 states have internal predecessors, (11907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:16,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10245 states to 10245 states and 11907 transitions. [2023-02-18 22:30:16,051 INFO L78 Accepts]: Start accepts. Automaton has 10245 states and 11907 transitions. Word has length 24 [2023-02-18 22:30:16,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:16,052 INFO L495 AbstractCegarLoop]: Abstraction has 10245 states and 11907 transitions. [2023-02-18 22:30:16,052 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) [2023-02-18 22:30:16,052 INFO L276 IsEmpty]: Start isEmpty. Operand 10245 states and 11907 transitions. [2023-02-18 22:30:16,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-18 22:30:16,060 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 22:30:16,060 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] [2023-02-18 22:30:16,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-02-18 22:30:16,060 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-02-18 22:30:16,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 22:30:16,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1914582747, now seen corresponding path program 1 times [2023-02-18 22:30:16,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 22:30:16,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756784629] [2023-02-18 22:30:16,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 22:30:16,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 22:30:16,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 22:30:16,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 22:30:16,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 22:30:16,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756784629] [2023-02-18 22:30:16,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756784629] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 22:30:16,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 22:30:16,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 22:30:16,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150052184] [2023-02-18 22:30:16,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 22:30:16,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 22:30:16,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 22:30:16,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 22:30:16,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 22:30:16,073 INFO L87 Difference]: Start difference. First operand 10245 states and 11907 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 22:30:16,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 22:30:16,123 INFO L93 Difference]: Finished difference Result 12803 states and 14082 transitions. [2023-02-18 22:30:16,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 22:30:16,124 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 [2023-02-18 22:30:16,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 22:30:16,124 INFO L225 Difference]: With dead ends: 12803 [2023-02-18 22:30:16,124 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 22:30:16,124 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 [2023-02-18 22:30:16,125 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 34 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 22:30:16,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 135 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 22:30:16,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 22:30:16,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 22:30:16,125 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) [2023-02-18 22:30:16,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 22:30:16,126 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2023-02-18 22:30:16,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 22:30:16,126 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 22:30:16,126 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) [2023-02-18 22:30:16,126 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 22:30:16,126 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 22:30:16,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2023-02-18 22:30:16,130 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2023-02-18 22:30:16,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-02-18 22:30:16,133 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] [2023-02-18 22:30:16,135 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 22:30:16,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 10:30:16 BoogieIcfgContainer [2023-02-18 22:30:16,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 22:30:16,138 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 22:30:16,138 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 22:30:16,138 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 22:30:16,138 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 10:30:13" (3/4) ... [2023-02-18 22:30:16,140 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 22:30:16,149 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-02-18 22:30:16,149 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-18 22:30:16,149 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-02-18 22:30:16,149 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 22:30:16,183 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 22:30:16,183 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 22:30:16,183 INFO L158 Benchmark]: Toolchain (without parser) took 3038.92ms. Allocated memory was 142.6MB in the beginning and 247.5MB in the end (delta: 104.9MB). Free memory was 102.8MB in the beginning and 142.6MB in the end (delta: -39.9MB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. [2023-02-18 22:30:16,183 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 22:30:16,184 INFO L158 Benchmark]: CACSL2BoogieTranslator took 151.80ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 91.5MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 22:30:16,184 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.20ms. Allocated memory is still 142.6MB. Free memory was 91.5MB in the beginning and 89.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 22:30:16,184 INFO L158 Benchmark]: Boogie Preprocessor took 39.67ms. Allocated memory is still 142.6MB. Free memory was 89.8MB in the beginning and 88.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 22:30:16,184 INFO L158 Benchmark]: RCFGBuilder took 321.31ms. Allocated memory is still 142.6MB. Free memory was 88.5MB in the beginning and 107.7MB in the end (delta: -19.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 22:30:16,186 INFO L158 Benchmark]: TraceAbstraction took 2439.31ms. Allocated memory was 142.6MB in the beginning and 247.5MB in the end (delta: 104.9MB). Free memory was 106.8MB in the beginning and 146.8MB in the end (delta: -40.0MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. [2023-02-18 22:30:16,186 INFO L158 Benchmark]: Witness Printer took 45.39ms. Allocated memory is still 247.5MB. Free memory was 146.8MB in the beginning and 142.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-18 22:30:16,191 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 151.80ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 91.5MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.20ms. Allocated memory is still 142.6MB. Free memory was 91.5MB in the beginning and 89.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.67ms. Allocated memory is still 142.6MB. Free memory was 89.8MB in the beginning and 88.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 321.31ms. Allocated memory is still 142.6MB. Free memory was 88.5MB in the beginning and 107.7MB in the end (delta: -19.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2439.31ms. Allocated memory was 142.6MB in the beginning and 247.5MB in the end (delta: 104.9MB). Free memory was 106.8MB in the beginning and 146.8MB in the end (delta: -40.0MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. * Witness Printer took 45.39ms. Allocated memory is still 247.5MB. Free memory was 146.8MB in the beginning and 142.6MB 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: 149]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 6]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 27, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 974 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 974 mSDsluCounter, 3211 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1228 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 134 IncrementalHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 1983 mSDtfsCounter, 134 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10245occurred in iteration=26, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 27 MinimizatonAttempts, 2072 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 516 NumberOfCodeBlocks, 516 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 489 ConstructedInterpolants, 0 QuantifiedInterpolants, 1028 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-02-18 22:30:16,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE