./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i -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 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 00:24:16,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 00:24:16,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 00:24:16,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 00:24:16,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 00:24:16,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 00:24:16,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 00:24:16,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 00:24:16,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 00:24:16,531 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 00:24:16,532 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 00:24:16,535 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 00:24:16,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 00:24:16,537 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 00:24:16,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 00:24:16,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 00:24:16,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 00:24:16,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 00:24:16,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 00:24:16,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 00:24:16,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 00:24:16,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 00:24:16,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 00:24:16,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 00:24:16,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 00:24:16,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 00:24:16,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 00:24:16,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 00:24:16,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 00:24:16,563 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 00:24:16,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 00:24:16,565 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 00:24:16,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 00:24:16,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 00:24:16,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 00:24:16,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 00:24:16,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 00:24:16,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 00:24:16,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 00:24:16,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 00:24:16,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 00:24:16,572 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-09-01 00:24:16,604 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 00:24:16,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 00:24:16,606 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 00:24:16,606 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 00:24:16,607 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 00:24:16,607 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 00:24:16,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 00:24:16,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 00:24:16,608 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 00:24:16,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 00:24:16,609 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 00:24:16,609 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 00:24:16,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 00:24:16,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 00:24:16,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 00:24:16,610 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-09-01 00:24:16,610 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-09-01 00:24:16,610 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-09-01 00:24:16,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 00:24:16,611 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-09-01 00:24:16,611 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 00:24:16,611 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 00:24:16,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 00:24:16,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 00:24:16,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 00:24:16,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:24:16,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 00:24:16,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 00:24:16,612 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 00:24:16,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 00:24:16,613 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 00:24:16,613 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 00:24:16,613 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 00:24:16,613 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 00:24:16,614 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 00:24:16,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 00:24:16,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 00:24:16,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 00:24:16,938 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 00:24:16,939 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 00:24:16,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2023-09-01 00:24:18,082 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 00:24:18,305 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 00:24:18,306 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2023-09-01 00:24:18,316 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/904280c5d/97765fcb23514be0aaddf91efae0759e/FLAG5540f8082 [2023-09-01 00:24:18,330 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/904280c5d/97765fcb23514be0aaddf91efae0759e [2023-09-01 00:24:18,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 00:24:18,334 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 00:24:18,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 00:24:18,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 00:24:18,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 00:24:18,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:24:18" (1/1) ... [2023-09-01 00:24:18,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19f13489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:18, skipping insertion in model container [2023-09-01 00:24:18,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:24:18" (1/1) ... [2023-09-01 00:24:18,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 00:24:18,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 00:24:18,518 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099] [2023-09-01 00:24:18,656 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:24:18,669 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 00:24:18,684 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099] [2023-09-01 00:24:18,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:24:18,754 INFO L208 MainTranslator]: Completed translation [2023-09-01 00:24:18,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:18 WrapperNode [2023-09-01 00:24:18,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 00:24:18,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 00:24:18,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 00:24:18,756 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 00:24:18,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:18" (1/1) ... [2023-09-01 00:24:18,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:18" (1/1) ... [2023-09-01 00:24:18,813 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 76 [2023-09-01 00:24:18,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 00:24:18,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 00:24:18,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 00:24:18,816 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 00:24:18,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:18" (1/1) ... [2023-09-01 00:24:18,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:18" (1/1) ... [2023-09-01 00:24:18,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:18" (1/1) ... [2023-09-01 00:24:18,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:18" (1/1) ... [2023-09-01 00:24:18,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:18" (1/1) ... [2023-09-01 00:24:18,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:18" (1/1) ... [2023-09-01 00:24:18,853 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:18" (1/1) ... [2023-09-01 00:24:18,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:18" (1/1) ... [2023-09-01 00:24:18,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 00:24:18,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 00:24:18,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 00:24:18,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 00:24:18,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:18" (1/1) ... [2023-09-01 00:24:18,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:24:18,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 00:24:18,894 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) [2023-09-01 00:24:18,925 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 [2023-09-01 00:24:18,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 00:24:18,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 00:24:18,944 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 00:24:18,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 00:24:18,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 00:24:18,945 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 00:24:18,945 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 00:24:18,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 00:24:18,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 00:24:18,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 00:24:18,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 00:24:18,947 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 00:24:19,045 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 00:24:19,046 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 00:24:19,253 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 00:24:19,259 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 00:24:19,260 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 00:24:19,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:24:19 BoogieIcfgContainer [2023-09-01 00:24:19,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 00:24:19,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 00:24:19,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 00:24:19,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 00:24:19,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 12:24:18" (1/3) ... [2023-09-01 00:24:19,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60dfd6c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:24:19, skipping insertion in model container [2023-09-01 00:24:19,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:18" (2/3) ... [2023-09-01 00:24:19,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60dfd6c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:24:19, skipping insertion in model container [2023-09-01 00:24:19,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:24:19" (3/3) ... [2023-09-01 00:24:19,269 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i [2023-09-01 00:24:19,284 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 00:24:19,284 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-09-01 00:24:19,284 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 00:24:19,333 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 00:24:19,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 92 transitions, 192 flow [2023-09-01 00:24:19,449 INFO L130 PetriNetUnfolder]: 4/91 cut-off events. [2023-09-01 00:24:19,449 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:24:19,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 4/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 92 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2023-09-01 00:24:19,454 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 92 transitions, 192 flow [2023-09-01 00:24:19,457 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 87 transitions, 180 flow [2023-09-01 00:24:19,460 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 00:24:19,468 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 87 transitions, 180 flow [2023-09-01 00:24:19,470 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 87 transitions, 180 flow [2023-09-01 00:24:19,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 87 transitions, 180 flow [2023-09-01 00:24:19,490 INFO L130 PetriNetUnfolder]: 4/87 cut-off events. [2023-09-01 00:24:19,490 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:24:19,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 87 events. 4/87 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 91 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2023-09-01 00:24:19,492 INFO L119 LiptonReduction]: Number of co-enabled transitions 1144 [2023-09-01 00:24:22,029 INFO L134 LiptonReduction]: Checked pairs total: 3094 [2023-09-01 00:24:22,029 INFO L136 LiptonReduction]: Total number of compositions: 92 [2023-09-01 00:24:22,043 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 00:24:22,048 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;@60299655, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 00:24:22,048 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-09-01 00:24:22,050 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-09-01 00:24:22,050 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:24:22,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:22,050 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-09-01 00:24:22,051 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-09-01 00:24:22,055 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:22,055 INFO L85 PathProgramCache]: Analyzing trace with hash 349, now seen corresponding path program 1 times [2023-09-01 00:24:22,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:22,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346733620] [2023-09-01 00:24:22,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:22,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:22,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:22,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:22,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346733620] [2023-09-01 00:24:22,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346733620] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:22,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:22,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-09-01 00:24:22,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363545402] [2023-09-01 00:24:22,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:22,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-01 00:24:22,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:22,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-01 00:24:22,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-01 00:24:22,219 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 184 [2023-09-01 00:24:22,221 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 60 flow. Second operand has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:22,221 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:22,221 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 184 [2023-09-01 00:24:22,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:22,310 INFO L130 PetriNetUnfolder]: 80/182 cut-off events. [2023-09-01 00:24:22,310 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:24:22,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 182 events. 80/182 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 617 event pairs, 80 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 356. Up to 183 conditions per place. [2023-09-01 00:24:22,315 INFO L137 encePairwiseOnDemand]: 180/184 looper letters, 22 selfloop transitions, 0 changer transitions 0/22 dead transitions. [2023-09-01 00:24:22,315 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 22 transitions, 94 flow [2023-09-01 00:24:22,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-01 00:24:22,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-09-01 00:24:22,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 190 transitions. [2023-09-01 00:24:22,326 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5163043478260869 [2023-09-01 00:24:22,327 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 190 transitions. [2023-09-01 00:24:22,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 190 transitions. [2023-09-01 00:24:22,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:22,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 190 transitions. [2023-09-01 00:24:22,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 95.0) internal successors, (190), 2 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:22,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:22,337 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:22,338 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 60 flow. Second operand 2 states and 190 transitions. [2023-09-01 00:24:22,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 22 transitions, 94 flow [2023-09-01 00:24:22,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 22 transitions, 90 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:24:22,342 INFO L231 Difference]: Finished difference. Result has 25 places, 22 transitions, 46 flow [2023-09-01 00:24:22,343 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=46, PETRI_PLACES=25, PETRI_TRANSITIONS=22} [2023-09-01 00:24:22,346 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -5 predicate places. [2023-09-01 00:24:22,346 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 22 transitions, 46 flow [2023-09-01 00:24:22,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:22,346 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:22,347 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 00:24:22,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 00:24:22,347 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-09-01 00:24:22,348 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:22,348 INFO L85 PathProgramCache]: Analyzing trace with hash 10807215, now seen corresponding path program 1 times [2023-09-01 00:24:22,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:22,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060614944] [2023-09-01 00:24:22,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:22,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:22,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:22,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:22,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060614944] [2023-09-01 00:24:22,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060614944] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:22,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:22,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:24:22,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166371210] [2023-09-01 00:24:22,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:22,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:24:22,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:22,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:24:22,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:24:22,606 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 184 [2023-09-01 00:24:22,607 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 22 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:22,607 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:22,607 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 184 [2023-09-01 00:24:22,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:22,686 INFO L130 PetriNetUnfolder]: 77/176 cut-off events. [2023-09-01 00:24:22,686 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:24:22,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 176 events. 77/176 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 602 event pairs, 46 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 353. Up to 163 conditions per place. [2023-09-01 00:24:22,687 INFO L137 encePairwiseOnDemand]: 180/184 looper letters, 25 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2023-09-01 00:24:22,688 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 28 transitions, 114 flow [2023-09-01 00:24:22,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:24:22,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:24:22,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 260 transitions. [2023-09-01 00:24:22,690 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47101449275362317 [2023-09-01 00:24:22,691 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 260 transitions. [2023-09-01 00:24:22,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 260 transitions. [2023-09-01 00:24:22,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:22,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 260 transitions. [2023-09-01 00:24:22,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:22,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:22,695 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:22,695 INFO L175 Difference]: Start difference. First operand has 25 places, 22 transitions, 46 flow. Second operand 3 states and 260 transitions. [2023-09-01 00:24:22,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 28 transitions, 114 flow [2023-09-01 00:24:22,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 28 transitions, 114 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-09-01 00:24:22,696 INFO L231 Difference]: Finished difference. Result has 28 places, 24 transitions, 65 flow [2023-09-01 00:24:22,696 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=28, PETRI_TRANSITIONS=24} [2023-09-01 00:24:22,697 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -2 predicate places. [2023-09-01 00:24:22,697 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 24 transitions, 65 flow [2023-09-01 00:24:22,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:22,698 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:22,698 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 00:24:22,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 00:24:22,698 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-09-01 00:24:22,699 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:22,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1795781341, now seen corresponding path program 1 times [2023-09-01 00:24:22,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:22,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213197630] [2023-09-01 00:24:22,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:22,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:22,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:22,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:22,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213197630] [2023-09-01 00:24:22,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213197630] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:22,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:22,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 00:24:22,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894457530] [2023-09-01 00:24:22,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:22,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 00:24:22,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:22,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 00:24:22,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-09-01 00:24:22,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 184 [2023-09-01 00:24:22,848 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 24 transitions, 65 flow. Second operand has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:22,848 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:22,848 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 184 [2023-09-01 00:24:22,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:22,966 INFO L130 PetriNetUnfolder]: 89/204 cut-off events. [2023-09-01 00:24:22,966 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-09-01 00:24:22,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 204 events. 89/204 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 781 event pairs, 28 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 446. Up to 142 conditions per place. [2023-09-01 00:24:22,973 INFO L137 encePairwiseOnDemand]: 177/184 looper letters, 38 selfloop transitions, 9 changer transitions 0/47 dead transitions. [2023-09-01 00:24:22,974 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 47 transitions, 214 flow [2023-09-01 00:24:22,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 00:24:22,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 00:24:22,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 492 transitions. [2023-09-01 00:24:22,978 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44565217391304346 [2023-09-01 00:24:22,978 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 492 transitions. [2023-09-01 00:24:22,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 492 transitions. [2023-09-01 00:24:22,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:22,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 492 transitions. [2023-09-01 00:24:22,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:22,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:22,986 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:22,986 INFO L175 Difference]: Start difference. First operand has 28 places, 24 transitions, 65 flow. Second operand 6 states and 492 transitions. [2023-09-01 00:24:22,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 47 transitions, 214 flow [2023-09-01 00:24:22,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 47 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 00:24:22,988 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 120 flow [2023-09-01 00:24:22,988 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=120, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2023-09-01 00:24:22,989 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2023-09-01 00:24:22,990 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 120 flow [2023-09-01 00:24:22,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:22,990 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:22,990 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 00:24:22,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 00:24:22,991 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-09-01 00:24:22,991 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:22,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1795781975, now seen corresponding path program 1 times [2023-09-01 00:24:22,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:22,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139064638] [2023-09-01 00:24:22,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:22,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:23,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:23,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:23,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:23,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139064638] [2023-09-01 00:24:23,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139064638] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:23,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:23,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 00:24:23,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879692819] [2023-09-01 00:24:23,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:23,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:24:23,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:23,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:24:23,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:24:23,102 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 184 [2023-09-01 00:24:23,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:23,103 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 184 [2023-09-01 00:24:23,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:23,172 INFO L130 PetriNetUnfolder]: 99/226 cut-off events. [2023-09-01 00:24:23,173 INFO L131 PetriNetUnfolder]: For 80/80 co-relation queries the response was YES. [2023-09-01 00:24:23,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 226 events. 99/226 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 920 event pairs, 47 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 581. Up to 189 conditions per place. [2023-09-01 00:24:23,174 INFO L137 encePairwiseOnDemand]: 179/184 looper letters, 35 selfloop transitions, 8 changer transitions 0/43 dead transitions. [2023-09-01 00:24:23,174 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 43 transitions, 250 flow [2023-09-01 00:24:23,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:24:23,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:24:23,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2023-09-01 00:24:23,175 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48188405797101447 [2023-09-01 00:24:23,176 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 266 transitions. [2023-09-01 00:24:23,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 266 transitions. [2023-09-01 00:24:23,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:23,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 266 transitions. [2023-09-01 00:24:23,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,178 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,178 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 120 flow. Second operand 3 states and 266 transitions. [2023-09-01 00:24:23,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 43 transitions, 250 flow [2023-09-01 00:24:23,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 43 transitions, 237 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-09-01 00:24:23,181 INFO L231 Difference]: Finished difference. Result has 36 places, 34 transitions, 163 flow [2023-09-01 00:24:23,181 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=36, PETRI_TRANSITIONS=34} [2023-09-01 00:24:23,181 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 6 predicate places. [2023-09-01 00:24:23,181 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 34 transitions, 163 flow [2023-09-01 00:24:23,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:23,182 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:23,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 00:24:23,182 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-09-01 00:24:23,183 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:23,183 INFO L85 PathProgramCache]: Analyzing trace with hash -163963676, now seen corresponding path program 1 times [2023-09-01 00:24:23,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:23,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583571742] [2023-09-01 00:24:23,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:23,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:23,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:23,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:23,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583571742] [2023-09-01 00:24:23,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583571742] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:23,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:23,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 00:24:23,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447210897] [2023-09-01 00:24:23,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:23,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:24:23,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:23,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:24:23,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:24:23,244 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 184 [2023-09-01 00:24:23,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 34 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:23,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 184 [2023-09-01 00:24:23,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:23,273 INFO L130 PetriNetUnfolder]: 3/50 cut-off events. [2023-09-01 00:24:23,273 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2023-09-01 00:24:23,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 50 events. 3/50 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 118 event pairs, 0 based on Foata normal form. 11/57 useless extension candidates. Maximal degree in co-relation 141. Up to 36 conditions per place. [2023-09-01 00:24:23,274 INFO L137 encePairwiseOnDemand]: 178/184 looper letters, 19 selfloop transitions, 6 changer transitions 0/25 dead transitions. [2023-09-01 00:24:23,274 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 25 transitions, 148 flow [2023-09-01 00:24:23,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:24:23,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:24:23,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2023-09-01 00:24:23,275 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4601449275362319 [2023-09-01 00:24:23,275 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 254 transitions. [2023-09-01 00:24:23,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 254 transitions. [2023-09-01 00:24:23,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:23,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 254 transitions. [2023-09-01 00:24:23,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,277 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,278 INFO L175 Difference]: Start difference. First operand has 36 places, 34 transitions, 163 flow. Second operand 3 states and 254 transitions. [2023-09-01 00:24:23,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 25 transitions, 148 flow [2023-09-01 00:24:23,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 25 transitions, 129 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-09-01 00:24:23,279 INFO L231 Difference]: Finished difference. Result has 32 places, 25 transitions, 91 flow [2023-09-01 00:24:23,279 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=32, PETRI_TRANSITIONS=25} [2023-09-01 00:24:23,280 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2023-09-01 00:24:23,280 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 91 flow [2023-09-01 00:24:23,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,280 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:23,281 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:23,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 00:24:23,281 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-09-01 00:24:23,281 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:23,281 INFO L85 PathProgramCache]: Analyzing trace with hash 7782870, now seen corresponding path program 1 times [2023-09-01 00:24:23,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:23,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812120303] [2023-09-01 00:24:23,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:23,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:23,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:23,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:23,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812120303] [2023-09-01 00:24:23,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812120303] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:23,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:23,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:24:23,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947306947] [2023-09-01 00:24:23,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:23,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:24:23,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:23,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:24:23,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:24:23,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 184 [2023-09-01 00:24:23,425 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,425 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:23,425 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 184 [2023-09-01 00:24:23,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:23,449 INFO L130 PetriNetUnfolder]: 2/41 cut-off events. [2023-09-01 00:24:23,449 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:24:23,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 72 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 111. Up to 40 conditions per place. [2023-09-01 00:24:23,450 INFO L137 encePairwiseOnDemand]: 181/184 looper letters, 22 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2023-09-01 00:24:23,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 24 transitions, 135 flow [2023-09-01 00:24:23,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:24:23,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:24:23,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2023-09-01 00:24:23,451 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45652173913043476 [2023-09-01 00:24:23,451 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 252 transitions. [2023-09-01 00:24:23,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 252 transitions. [2023-09-01 00:24:23,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:23,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 252 transitions. [2023-09-01 00:24:23,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,454 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,454 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 91 flow. Second operand 3 states and 252 transitions. [2023-09-01 00:24:23,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 24 transitions, 135 flow [2023-09-01 00:24:23,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 24 transitions, 130 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 00:24:23,455 INFO L231 Difference]: Finished difference. Result has 32 places, 24 transitions, 86 flow [2023-09-01 00:24:23,455 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=32, PETRI_TRANSITIONS=24} [2023-09-01 00:24:23,456 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2023-09-01 00:24:23,456 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 86 flow [2023-09-01 00:24:23,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:23,456 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:23,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 00:24:23,457 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-09-01 00:24:23,457 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:23,457 INFO L85 PathProgramCache]: Analyzing trace with hash 7782869, now seen corresponding path program 1 times [2023-09-01 00:24:23,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:23,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027155391] [2023-09-01 00:24:23,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:23,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:23,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:23,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:23,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027155391] [2023-09-01 00:24:23,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027155391] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:23,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:23,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:24:23,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546773269] [2023-09-01 00:24:23,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:23,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:24:23,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:23,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:24:23,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:24:23,514 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 184 [2023-09-01 00:24:23,515 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 24 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,515 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:23,515 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 184 [2023-09-01 00:24:23,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:23,537 INFO L130 PetriNetUnfolder]: 1/32 cut-off events. [2023-09-01 00:24:23,538 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:24:23,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 32 events. 1/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 85. Up to 31 conditions per place. [2023-09-01 00:24:23,538 INFO L137 encePairwiseOnDemand]: 181/184 looper letters, 21 selfloop transitions, 2 changer transitions 0/23 dead transitions. [2023-09-01 00:24:23,538 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 23 transitions, 129 flow [2023-09-01 00:24:23,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:24:23,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:24:23,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 242 transitions. [2023-09-01 00:24:23,540 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4384057971014493 [2023-09-01 00:24:23,540 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 242 transitions. [2023-09-01 00:24:23,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 242 transitions. [2023-09-01 00:24:23,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:23,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 242 transitions. [2023-09-01 00:24:23,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,542 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,542 INFO L175 Difference]: Start difference. First operand has 32 places, 24 transitions, 86 flow. Second operand 3 states and 242 transitions. [2023-09-01 00:24:23,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 23 transitions, 129 flow [2023-09-01 00:24:23,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 23 transitions, 125 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:24:23,545 INFO L231 Difference]: Finished difference. Result has 31 places, 23 transitions, 83 flow [2023-09-01 00:24:23,545 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=31, PETRI_TRANSITIONS=23} [2023-09-01 00:24:23,546 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 1 predicate places. [2023-09-01 00:24:23,546 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 83 flow [2023-09-01 00:24:23,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,547 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:23,547 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:23,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 00:24:23,547 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-09-01 00:24:23,548 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:23,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1110589025, now seen corresponding path program 1 times [2023-09-01 00:24:23,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:23,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157035379] [2023-09-01 00:24:23,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:23,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:23,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:23,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:23,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:23,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157035379] [2023-09-01 00:24:23,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157035379] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:23,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:23,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 00:24:23,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531461360] [2023-09-01 00:24:23,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:23,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 00:24:23,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:23,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 00:24:23,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-09-01 00:24:23,716 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 184 [2023-09-01 00:24:23,718 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 83 flow. Second operand has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,718 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:23,718 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 184 [2023-09-01 00:24:23,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:23,784 INFO L130 PetriNetUnfolder]: 1/31 cut-off events. [2023-09-01 00:24:23,784 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:24:23,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 31 events. 1/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 1/32 useless extension candidates. Maximal degree in co-relation 82. Up to 19 conditions per place. [2023-09-01 00:24:23,785 INFO L137 encePairwiseOnDemand]: 177/184 looper letters, 19 selfloop transitions, 7 changer transitions 0/26 dead transitions. [2023-09-01 00:24:23,785 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 26 transitions, 141 flow [2023-09-01 00:24:23,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 00:24:23,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 00:24:23,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 458 transitions. [2023-09-01 00:24:23,787 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4148550724637681 [2023-09-01 00:24:23,787 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 458 transitions. [2023-09-01 00:24:23,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 458 transitions. [2023-09-01 00:24:23,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:23,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 458 transitions. [2023-09-01 00:24:23,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,790 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 184.0) internal successors, (1288), 7 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,790 INFO L175 Difference]: Start difference. First operand has 31 places, 23 transitions, 83 flow. Second operand 6 states and 458 transitions. [2023-09-01 00:24:23,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 26 transitions, 141 flow [2023-09-01 00:24:23,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 26 transitions, 137 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:24:23,792 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 95 flow [2023-09-01 00:24:23,792 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=95, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2023-09-01 00:24:23,792 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 4 predicate places. [2023-09-01 00:24:23,793 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 95 flow [2023-09-01 00:24:23,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:23,793 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:23,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-01 00:24:23,793 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-09-01 00:24:23,794 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:23,794 INFO L85 PathProgramCache]: Analyzing trace with hash 320928131, now seen corresponding path program 1 times [2023-09-01 00:24:23,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:23,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152539464] [2023-09-01 00:24:23,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:23,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:23,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:23,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:23,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152539464] [2023-09-01 00:24:23,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152539464] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:23,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:23,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 00:24:23,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005478055] [2023-09-01 00:24:23,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:23,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 00:24:23,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:23,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 00:24:23,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-09-01 00:24:23,953 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 184 [2023-09-01 00:24:23,953 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 95 flow. Second operand has 6 states, 6 states have (on average 74.0) internal successors, (444), 6 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:23,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:23,954 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 184 [2023-09-01 00:24:23,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:24,051 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2023-09-01 00:24:24,051 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-09-01 00:24:24,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 32 events. 0/32 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 29 event pairs, 0 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2023-09-01 00:24:24,052 INFO L137 encePairwiseOnDemand]: 176/184 looper letters, 22 selfloop transitions, 10 changer transitions 0/32 dead transitions. [2023-09-01 00:24:24,052 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 32 transitions, 180 flow [2023-09-01 00:24:24,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-01 00:24:24,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-09-01 00:24:24,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 681 transitions. [2023-09-01 00:24:24,054 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.411231884057971 [2023-09-01 00:24:24,054 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 681 transitions. [2023-09-01 00:24:24,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 681 transitions. [2023-09-01 00:24:24,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:24,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 681 transitions. [2023-09-01 00:24:24,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 75.66666666666667) internal successors, (681), 9 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:24,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 184.0) internal successors, (1840), 10 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:24,059 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 184.0) internal successors, (1840), 10 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:24,059 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 95 flow. Second operand 9 states and 681 transitions. [2023-09-01 00:24:24,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 32 transitions, 180 flow [2023-09-01 00:24:24,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 32 transitions, 168 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 00:24:24,061 INFO L231 Difference]: Finished difference. Result has 39 places, 24 transitions, 113 flow [2023-09-01 00:24:24,061 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=113, PETRI_PLACES=39, PETRI_TRANSITIONS=24} [2023-09-01 00:24:24,062 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 9 predicate places. [2023-09-01 00:24:24,062 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 24 transitions, 113 flow [2023-09-01 00:24:24,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.0) internal successors, (444), 6 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:24,063 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:24,063 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:24,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-01 00:24:24,063 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-09-01 00:24:24,063 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:24,064 INFO L85 PathProgramCache]: Analyzing trace with hash 827555391, now seen corresponding path program 1 times [2023-09-01 00:24:24,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:24,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028410777] [2023-09-01 00:24:24,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:24,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:24,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:24,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:24,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028410777] [2023-09-01 00:24:24,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028410777] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:24,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:24,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:24:24,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425201427] [2023-09-01 00:24:24,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:24,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:24:24,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:24,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:24:24,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:24:24,176 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 184 [2023-09-01 00:24:24,176 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 24 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:24,176 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:24,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 184 [2023-09-01 00:24:24,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:24,194 INFO L130 PetriNetUnfolder]: 0/30 cut-off events. [2023-09-01 00:24:24,195 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-09-01 00:24:24,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 30 events. 0/30 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 27 event pairs, 0 based on Foata normal form. 2/32 useless extension candidates. Maximal degree in co-relation 0. Up to 30 conditions per place. [2023-09-01 00:24:24,195 INFO L137 encePairwiseOnDemand]: 182/184 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2023-09-01 00:24:24,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 23 transitions, 157 flow [2023-09-01 00:24:24,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:24:24,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:24:24,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-09-01 00:24:24,210 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45471014492753625 [2023-09-01 00:24:24,210 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-09-01 00:24:24,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-09-01 00:24:24,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:24,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-09-01 00:24:24,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:24,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:24,213 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:24,213 INFO L175 Difference]: Start difference. First operand has 39 places, 24 transitions, 113 flow. Second operand 3 states and 251 transitions. [2023-09-01 00:24:24,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 23 transitions, 157 flow [2023-09-01 00:24:24,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 23 transitions, 141 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-09-01 00:24:24,214 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-09-01 00:24:24,214 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-09-01 00:24:24,215 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2023-09-01 00:24:24,215 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-09-01 00:24:24,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:24,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (11 of 12 remaining) [2023-09-01 00:24:24,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 12 remaining) [2023-09-01 00:24:24,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2023-09-01 00:24:24,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (8 of 12 remaining) [2023-09-01 00:24:24,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 12 remaining) [2023-09-01 00:24:24,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 12 remaining) [2023-09-01 00:24:24,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (5 of 12 remaining) [2023-09-01 00:24:24,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2023-09-01 00:24:24,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 12 remaining) [2023-09-01 00:24:24,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 12 remaining) [2023-09-01 00:24:24,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 12 remaining) [2023-09-01 00:24:24,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 12 remaining) [2023-09-01 00:24:24,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-01 00:24:24,220 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:24,224 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 00:24:24,225 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 00:24:24,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 12:24:24 BasicIcfg [2023-09-01 00:24:24,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 00:24:24,228 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 00:24:24,228 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 00:24:24,228 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 00:24:24,229 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:24:19" (3/4) ... [2023-09-01 00:24:24,231 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 00:24:24,235 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-09-01 00:24:24,239 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-09-01 00:24:24,239 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-09-01 00:24:24,239 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-09-01 00:24:24,239 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 00:24:24,263 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 00:24:24,264 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 00:24:24,264 INFO L158 Benchmark]: Toolchain (without parser) took 5930.46ms. Allocated memory was 60.8MB in the beginning and 107.0MB in the end (delta: 46.1MB). Free memory was 28.3MB in the beginning and 76.9MB in the end (delta: -48.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:24:24,265 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory was 28.7MB in the beginning and 28.6MB in the end (delta: 54.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:24:24,265 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.43ms. Allocated memory is still 60.8MB. Free memory was 28.1MB in the beginning and 39.1MB in the end (delta: -10.9MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2023-09-01 00:24:24,265 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.83ms. Allocated memory is still 60.8MB. Free memory was 39.1MB in the beginning and 37.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 00:24:24,265 INFO L158 Benchmark]: Boogie Preprocessor took 47.31ms. Allocated memory is still 60.8MB. Free memory was 37.1MB in the beginning and 35.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:24:24,266 INFO L158 Benchmark]: RCFGBuilder took 399.04ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 35.5MB in the beginning and 51.3MB in the end (delta: -15.8MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2023-09-01 00:24:24,266 INFO L158 Benchmark]: TraceAbstraction took 4963.89ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 50.6MB in the beginning and 79.0MB in the end (delta: -28.4MB). Peak memory consumption was 52.9MB. Max. memory is 16.1GB. [2023-09-01 00:24:24,266 INFO L158 Benchmark]: Witness Printer took 35.98ms. Allocated memory is still 107.0MB. Free memory was 79.0MB in the beginning and 76.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 00:24:24,268 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory was 28.7MB in the beginning and 28.6MB in the end (delta: 54.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 417.43ms. Allocated memory is still 60.8MB. Free memory was 28.1MB in the beginning and 39.1MB in the end (delta: -10.9MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.83ms. Allocated memory is still 60.8MB. Free memory was 39.1MB in the beginning and 37.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.31ms. Allocated memory is still 60.8MB. Free memory was 37.1MB in the beginning and 35.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 399.04ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 35.5MB in the beginning and 51.3MB in the end (delta: -15.8MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4963.89ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 50.6MB in the beginning and 79.0MB in the end (delta: -28.4MB). Peak memory consumption was 52.9MB. Max. memory is 16.1GB. * Witness Printer took 35.98ms. Allocated memory is still 107.0MB. Free memory was 79.0MB in the beginning and 76.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 87 PlacesBefore, 30 PlacesAfterwards, 87 TransitionsBefore, 27 TransitionsAfterwards, 1144 CoEnabledTransitionPairs, 7 FixpointIterations, 44 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 92 TotalNumberOfCompositions, 3094 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1450, independent: 1257, independent conditional: 0, independent unconditional: 1257, dependent: 193, dependent conditional: 0, dependent unconditional: 193, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 679, independent: 644, independent conditional: 0, independent unconditional: 644, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1450, independent: 613, independent conditional: 0, independent unconditional: 613, dependent: 158, dependent conditional: 0, dependent unconditional: 158, unknown: 679, unknown conditional: 0, unknown unconditional: 679] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 32, Positive conditional cache size: 0, Positive unconditional cache size: 32, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 697]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 115 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 395 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 212 mSDsluCounter, 92 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 836 IncrementalHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 44 mSDtfsCounter, 836 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred in iteration=4, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 432 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 00:24:24,288 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