./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --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_01-priv_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 2f12d466eb2f537fd698a609dad75de92993414755aa8aadb35a91de87d65611 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 21:33:32,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 21:33:32,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 21:33:32,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 21:33:32,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 21:33:32,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 21:33:32,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 21:33:32,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 21:33:32,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 21:33:32,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 21:33:32,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 21:33:32,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 21:33:32,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 21:33:32,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 21:33:32,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 21:33:32,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 21:33:32,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 21:33:32,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 21:33:32,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 21:33:32,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 21:33:32,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 21:33:32,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 21:33:32,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 21:33:32,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 21:33:32,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 21:33:32,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 21:33:32,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 21:33:32,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 21:33:32,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 21:33:32,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 21:33:32,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 21:33:32,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 21:33:32,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 21:33:32,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 21:33:32,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 21:33:32,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 21:33:32,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 21:33:32,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 21:33:32,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 21:33:32,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 21:33:32,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 21:33:32,412 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-29 21:33:32,432 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 21:33:32,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 21:33:32,433 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 21:33:32,433 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 21:33:32,433 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 21:33:32,434 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 21:33:32,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 21:33:32,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 21:33:32,435 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 21:33:32,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 21:33:32,435 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 21:33:32,435 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 21:33:32,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 21:33:32,436 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 21:33:32,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 21:33:32,436 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-29 21:33:32,436 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-29 21:33:32,437 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-29 21:33:32,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 21:33:32,437 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-29 21:33:32,437 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 21:33:32,437 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 21:33:32,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 21:33:32,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 21:33:32,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 21:33:32,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 21:33:32,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 21:33:32,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 21:33:32,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 21:33:32,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 21:33:32,439 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 21:33:32,439 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 21:33:32,440 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 21:33:32,440 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 21:33:32,440 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f12d466eb2f537fd698a609dad75de92993414755aa8aadb35a91de87d65611 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 21:33:32,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 21:33:32,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 21:33:32,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 21:33:32,781 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 21:33:32,782 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 21:33:32,786 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2023-08-29 21:33:33,856 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 21:33:34,064 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 21:33:34,065 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2023-08-29 21:33:34,076 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c497afc46/d2cf88d861f94d8fa137c726ca61e422/FLAG3cab63c80 [2023-08-29 21:33:34,091 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c497afc46/d2cf88d861f94d8fa137c726ca61e422 [2023-08-29 21:33:34,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 21:33:34,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 21:33:34,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 21:33:34,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 21:33:34,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 21:33:34,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:33:34" (1/1) ... [2023-08-29 21:33:34,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@134d18d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:33:34, skipping insertion in model container [2023-08-29 21:33:34,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:33:34" (1/1) ... [2023-08-29 21:33:34,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 21:33:34,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 21:33:34,279 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_01-priv_nr_true.i[1084,1097] [2023-08-29 21:33:34,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 21:33:34,403 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 21:33:34,418 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_01-priv_nr_true.i[1084,1097] [2023-08-29 21:33:34,464 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 21:33:34,508 INFO L208 MainTranslator]: Completed translation [2023-08-29 21:33:34,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:33:34 WrapperNode [2023-08-29 21:33:34,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 21:33:34,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 21:33:34,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 21:33:34,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 21:33:34,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:33:34" (1/1) ... [2023-08-29 21:33:34,544 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:33:34" (1/1) ... [2023-08-29 21:33:34,569 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 84 [2023-08-29 21:33:34,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 21:33:34,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 21:33:34,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 21:33:34,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 21:33:34,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:33:34" (1/1) ... [2023-08-29 21:33:34,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:33:34" (1/1) ... [2023-08-29 21:33:34,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:33:34" (1/1) ... [2023-08-29 21:33:34,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:33:34" (1/1) ... [2023-08-29 21:33:34,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:33:34" (1/1) ... [2023-08-29 21:33:34,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:33:34" (1/1) ... [2023-08-29 21:33:34,604 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:33:34" (1/1) ... [2023-08-29 21:33:34,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:33:34" (1/1) ... [2023-08-29 21:33:34,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 21:33:34,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 21:33:34,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 21:33:34,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 21:33:34,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:33:34" (1/1) ... [2023-08-29 21:33:34,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 21:33:34,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 21:33:34,654 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) [2023-08-29 21:33:34,670 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 [2023-08-29 21:33:34,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 21:33:34,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 21:33:34,694 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 21:33:34,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 21:33:34,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 21:33:34,694 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 21:33:34,695 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 21:33:34,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 21:33:34,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 21:33:34,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 21:33:34,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 21:33:34,697 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 21:33:34,866 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 21:33:34,882 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 21:33:35,113 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 21:33:35,119 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 21:33:35,121 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 21:33:35,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:33:35 BoogieIcfgContainer [2023-08-29 21:33:35,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 21:33:35,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 21:33:35,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 21:33:35,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 21:33:35,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:33:34" (1/3) ... [2023-08-29 21:33:35,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f5e1a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:33:35, skipping insertion in model container [2023-08-29 21:33:35,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:33:34" (2/3) ... [2023-08-29 21:33:35,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f5e1a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:33:35, skipping insertion in model container [2023-08-29 21:33:35,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:33:35" (3/3) ... [2023-08-29 21:33:35,133 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_01-priv_nr_true.i [2023-08-29 21:33:35,150 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 21:33:35,150 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-29 21:33:35,150 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 21:33:35,214 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 21:33:35,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 101 transitions, 210 flow [2023-08-29 21:33:35,329 INFO L130 PetriNetUnfolder]: 4/100 cut-off events. [2023-08-29 21:33:35,329 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 21:33:35,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 100 events. 4/100 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2023-08-29 21:33:35,335 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 101 transitions, 210 flow [2023-08-29 21:33:35,339 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 96 transitions, 198 flow [2023-08-29 21:33:35,342 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 21:33:35,359 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 96 transitions, 198 flow [2023-08-29 21:33:35,366 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 96 transitions, 198 flow [2023-08-29 21:33:35,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 96 transitions, 198 flow [2023-08-29 21:33:35,398 INFO L130 PetriNetUnfolder]: 4/96 cut-off events. [2023-08-29 21:33:35,398 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 21:33:35,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 96 events. 4/96 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 91 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2023-08-29 21:33:35,408 INFO L119 LiptonReduction]: Number of co-enabled transitions 1144 [2023-08-29 21:33:38,260 INFO L134 LiptonReduction]: Checked pairs total: 3717 [2023-08-29 21:33:38,260 INFO L136 LiptonReduction]: Total number of compositions: 95 [2023-08-29 21:33:38,271 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 21:33:38,277 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;@50af694c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 21:33:38,277 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-08-29 21:33:38,278 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 21:33:38,278 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:33:38,278 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:33:38,279 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 21:33:38,279 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)] === [2023-08-29 21:33:38,282 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:33:38,282 INFO L85 PathProgramCache]: Analyzing trace with hash 373, now seen corresponding path program 1 times [2023-08-29 21:33:38,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:33:38,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121310109] [2023-08-29 21:33:38,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:33:38,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:33:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:33:38,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:33:38,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:33:38,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121310109] [2023-08-29 21:33:38,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121310109] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:33:38,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:33:38,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 21:33:38,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589715879] [2023-08-29 21:33:38,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:33:38,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 21:33:38,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:33:38,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 21:33:38,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 21:33:38,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 196 [2023-08-29 21:33:38,401 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 64 flow. Second operand has 2 states, 2 states have (on average 91.5) internal successors, (183), 2 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:38,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:33:38,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 196 [2023-08-29 21:33:38,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:33:38,499 INFO L130 PetriNetUnfolder]: 81/186 cut-off events. [2023-08-29 21:33:38,499 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 21:33:38,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 186 events. 81/186 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 674 event pairs, 81 based on Foata normal form. 10/134 useless extension candidates. Maximal degree in co-relation 362. Up to 185 conditions per place. [2023-08-29 21:33:38,501 INFO L137 encePairwiseOnDemand]: 191/196 looper letters, 22 selfloop transitions, 0 changer transitions 0/23 dead transitions. [2023-08-29 21:33:38,508 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 23 transitions, 96 flow [2023-08-29 21:33:38,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 21:33:38,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 21:33:38,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 209 transitions. [2023-08-29 21:33:38,528 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5331632653061225 [2023-08-29 21:33:38,529 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 209 transitions. [2023-08-29 21:33:38,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 209 transitions. [2023-08-29 21:33:38,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:33:38,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 209 transitions. [2023-08-29 21:33:38,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 104.5) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:38,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:38,542 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:38,543 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 64 flow. Second operand 2 states and 209 transitions. [2023-08-29 21:33:38,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 23 transitions, 96 flow [2023-08-29 21:33:38,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 23 transitions, 92 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:33:38,546 INFO L231 Difference]: Finished difference. Result has 26 places, 23 transitions, 48 flow [2023-08-29 21:33:38,547 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, 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=2, PETRI_FLOW=48, PETRI_PLACES=26, PETRI_TRANSITIONS=23} [2023-08-29 21:33:38,550 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2023-08-29 21:33:38,550 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 23 transitions, 48 flow [2023-08-29 21:33:38,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 91.5) internal successors, (183), 2 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:38,550 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:33:38,550 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 21:33:38,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 21:33:38,551 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)] === [2023-08-29 21:33:38,551 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:33:38,551 INFO L85 PathProgramCache]: Analyzing trace with hash 11391089, now seen corresponding path program 1 times [2023-08-29 21:33:38,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:33:38,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983464363] [2023-08-29 21:33:38,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:33:38,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:33:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:33:38,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:33:38,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:33:38,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983464363] [2023-08-29 21:33:38,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983464363] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:33:38,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:33:38,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:33:38,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772909181] [2023-08-29 21:33:38,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:33:38,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:33:38,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:33:38,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:33:38,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:33:38,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 196 [2023-08-29 21:33:38,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:38,811 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:33:38,811 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 196 [2023-08-29 21:33:38,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:33:38,857 INFO L130 PetriNetUnfolder]: 79/182 cut-off events. [2023-08-29 21:33:38,858 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:33:38,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 182 events. 79/182 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 650 event pairs, 49 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 363. Up to 172 conditions per place. [2023-08-29 21:33:38,859 INFO L137 encePairwiseOnDemand]: 192/196 looper letters, 24 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2023-08-29 21:33:38,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 28 transitions, 112 flow [2023-08-29 21:33:38,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:33:38,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:33:38,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2023-08-29 21:33:38,862 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48639455782312924 [2023-08-29 21:33:38,862 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 286 transitions. [2023-08-29 21:33:38,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 286 transitions. [2023-08-29 21:33:38,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:33:38,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 286 transitions. [2023-08-29 21:33:38,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:38,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:38,867 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:38,867 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 48 flow. Second operand 3 states and 286 transitions. [2023-08-29 21:33:38,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 28 transitions, 112 flow [2023-08-29 21:33:38,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 28 transitions, 112 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 21:33:38,869 INFO L231 Difference]: Finished difference. Result has 29 places, 25 transitions, 67 flow [2023-08-29 21:33:38,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=29, PETRI_TRANSITIONS=25} [2023-08-29 21:33:38,870 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -2 predicate places. [2023-08-29 21:33:38,870 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 25 transitions, 67 flow [2023-08-29 21:33:38,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:38,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:33:38,870 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 21:33:38,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 21:33:38,871 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-29 21:33:38,871 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:33:38,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1938074986, now seen corresponding path program 1 times [2023-08-29 21:33:38,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:33:38,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714987427] [2023-08-29 21:33:38,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:33:38,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:33:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:33:38,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:33:38,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:33:38,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714987427] [2023-08-29 21:33:38,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714987427] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:33:38,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:33:38,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 21:33:38,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458190239] [2023-08-29 21:33:38,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:33:38,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:33:38,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:33:38,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:33:38,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:33:38,996 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 196 [2023-08-29 21:33:38,997 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:38,997 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:33:38,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 196 [2023-08-29 21:33:38,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:33:39,056 INFO L130 PetriNetUnfolder]: 89/204 cut-off events. [2023-08-29 21:33:39,056 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-08-29 21:33:39,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 443 conditions, 204 events. 89/204 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 799 event pairs, 55 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 438. Up to 169 conditions per place. [2023-08-29 21:33:39,058 INFO L137 encePairwiseOnDemand]: 190/196 looper letters, 30 selfloop transitions, 5 changer transitions 0/36 dead transitions. [2023-08-29 21:33:39,058 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 36 transitions, 161 flow [2023-08-29 21:33:39,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:33:39,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:33:39,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 293 transitions. [2023-08-29 21:33:39,061 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49829931972789115 [2023-08-29 21:33:39,061 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 293 transitions. [2023-08-29 21:33:39,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 293 transitions. [2023-08-29 21:33:39,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:33:39,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 293 transitions. [2023-08-29 21:33:39,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,065 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,065 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 67 flow. Second operand 3 states and 293 transitions. [2023-08-29 21:33:39,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 36 transitions, 161 flow [2023-08-29 21:33:39,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 36 transitions, 158 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 21:33:39,067 INFO L231 Difference]: Finished difference. Result has 31 places, 28 transitions, 97 flow [2023-08-29 21:33:39,067 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=31, PETRI_TRANSITIONS=28} [2023-08-29 21:33:39,068 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 0 predicate places. [2023-08-29 21:33:39,068 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 28 transitions, 97 flow [2023-08-29 21:33:39,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,068 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:33:39,069 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 21:33:39,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 21:33:39,069 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-29 21:33:39,069 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:33:39,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1938060165, now seen corresponding path program 1 times [2023-08-29 21:33:39,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:33:39,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355081587] [2023-08-29 21:33:39,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:33:39,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:33:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:33:39,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:33:39,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:33:39,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355081587] [2023-08-29 21:33:39,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355081587] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:33:39,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:33:39,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 21:33:39,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52685182] [2023-08-29 21:33:39,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:33:39,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 21:33:39,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:33:39,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 21:33:39,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-29 21:33:39,221 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 196 [2023-08-29 21:33:39,222 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 28 transitions, 97 flow. Second operand has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,222 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:33:39,222 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 196 [2023-08-29 21:33:39,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:33:39,355 INFO L130 PetriNetUnfolder]: 109/247 cut-off events. [2023-08-29 21:33:39,356 INFO L131 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2023-08-29 21:33:39,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 629 conditions, 247 events. 109/247 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1051 event pairs, 44 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 623. Up to 182 conditions per place. [2023-08-29 21:33:39,362 INFO L137 encePairwiseOnDemand]: 189/196 looper letters, 42 selfloop transitions, 10 changer transitions 0/52 dead transitions. [2023-08-29 21:33:39,362 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 52 transitions, 281 flow [2023-08-29 21:33:39,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 21:33:39,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 21:33:39,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 547 transitions. [2023-08-29 21:33:39,368 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4651360544217687 [2023-08-29 21:33:39,368 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 547 transitions. [2023-08-29 21:33:39,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 547 transitions. [2023-08-29 21:33:39,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:33:39,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 547 transitions. [2023-08-29 21:33:39,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.16666666666667) internal successors, (547), 6 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 196.0) internal successors, (1372), 7 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,378 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 196.0) internal successors, (1372), 7 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,381 INFO L175 Difference]: Start difference. First operand has 31 places, 28 transitions, 97 flow. Second operand 6 states and 547 transitions. [2023-08-29 21:33:39,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 52 transitions, 281 flow [2023-08-29 21:33:39,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 52 transitions, 268 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-29 21:33:39,384 INFO L231 Difference]: Finished difference. Result has 38 places, 35 transitions, 168 flow [2023-08-29 21:33:39,385 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=168, PETRI_PLACES=38, PETRI_TRANSITIONS=35} [2023-08-29 21:33:39,386 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2023-08-29 21:33:39,386 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 35 transitions, 168 flow [2023-08-29 21:33:39,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,387 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:33:39,387 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:33:39,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 21:33:39,388 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)] === [2023-08-29 21:33:39,388 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:33:39,389 INFO L85 PathProgramCache]: Analyzing trace with hash 49416458, now seen corresponding path program 1 times [2023-08-29 21:33:39,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:33:39,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092794434] [2023-08-29 21:33:39,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:33:39,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:33:39,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:33:39,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:33:39,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:33:39,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092794434] [2023-08-29 21:33:39,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092794434] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:33:39,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:33:39,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 21:33:39,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909045100] [2023-08-29 21:33:39,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:33:39,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:33:39,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:33:39,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:33:39,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:33:39,498 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 196 [2023-08-29 21:33:39,499 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 35 transitions, 168 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,499 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:33:39,499 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 196 [2023-08-29 21:33:39,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:33:39,528 INFO L130 PetriNetUnfolder]: 3/50 cut-off events. [2023-08-29 21:33:39,529 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2023-08-29 21:33:39,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 50 events. 3/50 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 120 event pairs, 0 based on Foata normal form. 10/56 useless extension candidates. Maximal degree in co-relation 135. Up to 34 conditions per place. [2023-08-29 21:33:39,529 INFO L137 encePairwiseOnDemand]: 190/196 looper letters, 17 selfloop transitions, 6 changer transitions 0/25 dead transitions. [2023-08-29 21:33:39,530 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 25 transitions, 147 flow [2023-08-29 21:33:39,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:33:39,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:33:39,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2023-08-29 21:33:39,531 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2023-08-29 21:33:39,531 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 280 transitions. [2023-08-29 21:33:39,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 280 transitions. [2023-08-29 21:33:39,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:33:39,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 280 transitions. [2023-08-29 21:33:39,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,535 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,535 INFO L175 Difference]: Start difference. First operand has 38 places, 35 transitions, 168 flow. Second operand 3 states and 280 transitions. [2023-08-29 21:33:39,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 25 transitions, 147 flow [2023-08-29 21:33:39,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 25 transitions, 125 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-08-29 21:33:39,537 INFO L231 Difference]: Finished difference. Result has 32 places, 25 transitions, 91 flow [2023-08-29 21:33:39,537 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, 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} [2023-08-29 21:33:39,539 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 1 predicate places. [2023-08-29 21:33:39,539 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 91 flow [2023-08-29 21:33:39,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,540 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:33:39,540 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:33:39,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 21:33:39,541 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-29 21:33:39,542 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:33:39,542 INFO L85 PathProgramCache]: Analyzing trace with hash 494613488, now seen corresponding path program 1 times [2023-08-29 21:33:39,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:33:39,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500708361] [2023-08-29 21:33:39,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:33:39,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:33:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:33:39,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:33:39,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:33:39,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500708361] [2023-08-29 21:33:39,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500708361] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:33:39,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:33:39,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:33:39,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336104986] [2023-08-29 21:33:39,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:33:39,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:33:39,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:33:39,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:33:39,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:33:39,654 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 196 [2023-08-29 21:33:39,654 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,655 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:33:39,655 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 196 [2023-08-29 21:33:39,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:33:39,684 INFO L130 PetriNetUnfolder]: 2/41 cut-off events. [2023-08-29 21:33:39,685 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 21:33:39,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 41 events. 2/41 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 71 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 109. Up to 38 conditions per place. [2023-08-29 21:33:39,685 INFO L137 encePairwiseOnDemand]: 193/196 looper letters, 20 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2023-08-29 21:33:39,685 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 24 transitions, 131 flow [2023-08-29 21:33:39,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:33:39,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:33:39,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 269 transitions. [2023-08-29 21:33:39,687 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4574829931972789 [2023-08-29 21:33:39,687 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 269 transitions. [2023-08-29 21:33:39,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 269 transitions. [2023-08-29 21:33:39,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:33:39,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 269 transitions. [2023-08-29 21:33:39,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,690 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,690 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 91 flow. Second operand 3 states and 269 transitions. [2023-08-29 21:33:39,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 24 transitions, 131 flow [2023-08-29 21:33:39,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 24 transitions, 126 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 21:33:39,692 INFO L231 Difference]: Finished difference. Result has 32 places, 24 transitions, 86 flow [2023-08-29 21:33:39,692 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, 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} [2023-08-29 21:33:39,693 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 1 predicate places. [2023-08-29 21:33:39,693 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 86 flow [2023-08-29 21:33:39,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,693 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:33:39,693 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:33:39,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 21:33:39,694 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-29 21:33:39,694 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:33:39,694 INFO L85 PathProgramCache]: Analyzing trace with hash 494613489, now seen corresponding path program 1 times [2023-08-29 21:33:39,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:33:39,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106074382] [2023-08-29 21:33:39,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:33:39,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:33:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:33:39,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:33:39,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:33:39,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106074382] [2023-08-29 21:33:39,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106074382] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:33:39,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:33:39,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:33:39,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469354554] [2023-08-29 21:33:39,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:33:39,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:33:39,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:33:39,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:33:39,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:33:39,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 196 [2023-08-29 21:33:39,770 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 24 transitions, 86 flow. Second operand has 3 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) [2023-08-29 21:33:39,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:33:39,771 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 196 [2023-08-29 21:33:39,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:33:39,797 INFO L130 PetriNetUnfolder]: 1/32 cut-off events. [2023-08-29 21:33:39,797 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 21:33:39,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 32 events. 1/32 cut-off events. For 2/2 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 83. Up to 29 conditions per place. [2023-08-29 21:33:39,798 INFO L137 encePairwiseOnDemand]: 193/196 looper letters, 19 selfloop transitions, 2 changer transitions 0/23 dead transitions. [2023-08-29 21:33:39,798 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 23 transitions, 125 flow [2023-08-29 21:33:39,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:33:39,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:33:39,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 277 transitions. [2023-08-29 21:33:39,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4710884353741497 [2023-08-29 21:33:39,800 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 277 transitions. [2023-08-29 21:33:39,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 277 transitions. [2023-08-29 21:33:39,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:33:39,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 277 transitions. [2023-08-29 21:33:39,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,804 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,804 INFO L175 Difference]: Start difference. First operand has 32 places, 24 transitions, 86 flow. Second operand 3 states and 277 transitions. [2023-08-29 21:33:39,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 23 transitions, 125 flow [2023-08-29 21:33:39,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 23 transitions, 121 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:33:39,805 INFO L231 Difference]: Finished difference. Result has 31 places, 23 transitions, 83 flow [2023-08-29 21:33:39,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, 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} [2023-08-29 21:33:39,806 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 0 predicate places. [2023-08-29 21:33:39,806 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 83 flow [2023-08-29 21:33:39,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2023-08-29 21:33:39,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:33:39,807 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:33:39,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 21:33:39,807 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)] === [2023-08-29 21:33:39,808 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:33:39,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1417798883, now seen corresponding path program 1 times [2023-08-29 21:33:39,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:33:39,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268483640] [2023-08-29 21:33:39,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:33:39,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:33:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:33:39,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:33:39,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:33:39,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268483640] [2023-08-29 21:33:39,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268483640] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:33:39,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:33:39,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 21:33:39,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289376672] [2023-08-29 21:33:39,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:33:39,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 21:33:39,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:33:39,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 21:33:39,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-29 21:33:39,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 196 [2023-08-29 21:33:39,986 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 83 flow. Second operand has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:39,987 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:33:39,987 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 196 [2023-08-29 21:33:39,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:33:40,052 INFO L130 PetriNetUnfolder]: 1/31 cut-off events. [2023-08-29 21:33:40,052 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:33:40,052 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. [2023-08-29 21:33:40,052 INFO L137 encePairwiseOnDemand]: 189/196 looper letters, 19 selfloop transitions, 7 changer transitions 0/26 dead transitions. [2023-08-29 21:33:40,052 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 26 transitions, 141 flow [2023-08-29 21:33:40,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 21:33:40,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 21:33:40,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 512 transitions. [2023-08-29 21:33:40,054 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43537414965986393 [2023-08-29 21:33:40,054 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 512 transitions. [2023-08-29 21:33:40,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 512 transitions. [2023-08-29 21:33:40,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:33:40,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 512 transitions. [2023-08-29 21:33:40,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.33333333333333) internal successors, (512), 6 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:40,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 196.0) internal successors, (1372), 7 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:40,058 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 196.0) internal successors, (1372), 7 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:40,058 INFO L175 Difference]: Start difference. First operand has 31 places, 23 transitions, 83 flow. Second operand 6 states and 512 transitions. [2023-08-29 21:33:40,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 26 transitions, 141 flow [2023-08-29 21:33:40,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 26 transitions, 137 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:33:40,061 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 95 flow [2023-08-29 21:33:40,061 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, 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} [2023-08-29 21:33:40,063 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 3 predicate places. [2023-08-29 21:33:40,063 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 95 flow [2023-08-29 21:33:40,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:40,063 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:33:40,063 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:33:40,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 21:33:40,064 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)] === [2023-08-29 21:33:40,067 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:33:40,067 INFO L85 PathProgramCache]: Analyzing trace with hash 690280297, now seen corresponding path program 1 times [2023-08-29 21:33:40,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:33:40,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688131065] [2023-08-29 21:33:40,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:33:40,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:33:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:33:40,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:33:40,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:33:40,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688131065] [2023-08-29 21:33:40,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688131065] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:33:40,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:33:40,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 21:33:40,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662217605] [2023-08-29 21:33:40,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:33:40,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 21:33:40,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:33:40,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 21:33:40,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-29 21:33:40,222 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 196 [2023-08-29 21:33:40,222 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 95 flow. Second operand has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:40,223 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:33:40,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 196 [2023-08-29 21:33:40,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:33:40,318 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2023-08-29 21:33:40,319 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-29 21:33:40,319 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. [2023-08-29 21:33:40,319 INFO L137 encePairwiseOnDemand]: 188/196 looper letters, 22 selfloop transitions, 10 changer transitions 0/32 dead transitions. [2023-08-29 21:33:40,319 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 32 transitions, 180 flow [2023-08-29 21:33:40,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 21:33:40,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 21:33:40,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 762 transitions. [2023-08-29 21:33:40,322 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43197278911564624 [2023-08-29 21:33:40,322 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 762 transitions. [2023-08-29 21:33:40,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 762 transitions. [2023-08-29 21:33:40,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:33:40,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 762 transitions. [2023-08-29 21:33:40,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 84.66666666666667) internal successors, (762), 9 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:40,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 196.0) internal successors, (1960), 10 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:40,328 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 196.0) internal successors, (1960), 10 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:40,328 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 95 flow. Second operand 9 states and 762 transitions. [2023-08-29 21:33:40,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 32 transitions, 180 flow [2023-08-29 21:33:40,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 32 transitions, 168 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 21:33:40,331 INFO L231 Difference]: Finished difference. Result has 39 places, 24 transitions, 113 flow [2023-08-29 21:33:40,331 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, 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} [2023-08-29 21:33:40,332 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 8 predicate places. [2023-08-29 21:33:40,332 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 24 transitions, 113 flow [2023-08-29 21:33:40,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:40,335 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:33:40,335 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:33:40,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 21:33:40,335 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)] === [2023-08-29 21:33:40,336 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:33:40,336 INFO L85 PathProgramCache]: Analyzing trace with hash -972451540, now seen corresponding path program 1 times [2023-08-29 21:33:40,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 21:33:40,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382758303] [2023-08-29 21:33:40,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:33:40,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 21:33:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:33:40,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:33:40,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 21:33:40,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382758303] [2023-08-29 21:33:40,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382758303] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:33:40,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:33:40,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:33:40,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302910034] [2023-08-29 21:33:40,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:33:40,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:33:40,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 21:33:40,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:33:40,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:33:40,501 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 196 [2023-08-29 21:33:40,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 24 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:40,502 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:33:40,502 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 196 [2023-08-29 21:33:40,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:33:40,520 INFO L130 PetriNetUnfolder]: 0/30 cut-off events. [2023-08-29 21:33:40,520 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-08-29 21:33:40,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 30 events. 0/30 cut-off events. For 10/10 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 28 conditions per place. [2023-08-29 21:33:40,521 INFO L137 encePairwiseOnDemand]: 194/196 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2023-08-29 21:33:40,521 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 23 transitions, 153 flow [2023-08-29 21:33:40,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:33:40,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:33:40,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 277 transitions. [2023-08-29 21:33:40,522 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4710884353741497 [2023-08-29 21:33:40,522 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 277 transitions. [2023-08-29 21:33:40,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 277 transitions. [2023-08-29 21:33:40,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:33:40,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 277 transitions. [2023-08-29 21:33:40,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:40,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:40,525 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:40,525 INFO L175 Difference]: Start difference. First operand has 39 places, 24 transitions, 113 flow. Second operand 3 states and 277 transitions. [2023-08-29 21:33:40,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 23 transitions, 153 flow [2023-08-29 21:33:40,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 23 transitions, 137 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-08-29 21:33:40,526 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-29 21:33:40,527 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, 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} [2023-08-29 21:33:40,528 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2023-08-29 21:33:40,528 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-29 21:33:40,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:33:40,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (11 of 12 remaining) [2023-08-29 21:33:40,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 12 remaining) [2023-08-29 21:33:40,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2023-08-29 21:33:40,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (8 of 12 remaining) [2023-08-29 21:33:40,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 12 remaining) [2023-08-29 21:33:40,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 12 remaining) [2023-08-29 21:33:40,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (5 of 12 remaining) [2023-08-29 21:33:40,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2023-08-29 21:33:40,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 12 remaining) [2023-08-29 21:33:40,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 12 remaining) [2023-08-29 21:33:40,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 12 remaining) [2023-08-29 21:33:40,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 12 remaining) [2023-08-29 21:33:40,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 21:33:40,536 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:33:40,540 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 21:33:40,540 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 21:33:40,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 09:33:40 BasicIcfg [2023-08-29 21:33:40,548 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 21:33:40,549 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 21:33:40,549 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 21:33:40,549 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 21:33:40,549 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:33:35" (3/4) ... [2023-08-29 21:33:40,551 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 21:33:40,556 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 21:33:40,561 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-08-29 21:33:40,561 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-29 21:33:40,561 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-29 21:33:40,561 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 21:33:40,595 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 21:33:40,595 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 21:33:40,596 INFO L158 Benchmark]: Toolchain (without parser) took 6501.55ms. Allocated memory was 71.3MB in the beginning and 132.1MB in the end (delta: 60.8MB). Free memory was 36.9MB in the beginning and 86.5MB in the end (delta: -49.5MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2023-08-29 21:33:40,596 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 71.3MB. Free memory is still 48.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 21:33:40,596 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.90ms. Allocated memory is still 71.3MB. Free memory was 36.7MB in the beginning and 39.4MB in the end (delta: -2.6MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2023-08-29 21:33:40,597 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.38ms. Allocated memory is still 71.3MB. Free memory was 39.4MB in the beginning and 37.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 21:33:40,597 INFO L158 Benchmark]: Boogie Preprocessor took 42.41ms. Allocated memory is still 71.3MB. Free memory was 37.2MB in the beginning and 35.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 21:33:40,597 INFO L158 Benchmark]: RCFGBuilder took 509.78ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 35.8MB in the beginning and 59.2MB in the end (delta: -23.5MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2023-08-29 21:33:40,598 INFO L158 Benchmark]: TraceAbstraction took 5423.35ms. Allocated memory was 90.2MB in the beginning and 132.1MB in the end (delta: 41.9MB). Free memory was 58.9MB in the beginning and 88.6MB in the end (delta: -29.7MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2023-08-29 21:33:40,598 INFO L158 Benchmark]: Witness Printer took 46.92ms. Allocated memory is still 132.1MB. Free memory was 88.6MB in the beginning and 86.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 21:33:40,600 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 71.3MB. Free memory is still 48.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 413.90ms. Allocated memory is still 71.3MB. Free memory was 36.7MB in the beginning and 39.4MB in the end (delta: -2.6MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.38ms. Allocated memory is still 71.3MB. Free memory was 39.4MB in the beginning and 37.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.41ms. Allocated memory is still 71.3MB. Free memory was 37.2MB in the beginning and 35.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 509.78ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 35.8MB in the beginning and 59.2MB in the end (delta: -23.5MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * TraceAbstraction took 5423.35ms. Allocated memory was 90.2MB in the beginning and 132.1MB in the end (delta: 41.9MB). Free memory was 58.9MB in the beginning and 88.6MB in the end (delta: -29.7MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Witness Printer took 46.92ms. Allocated memory is still 132.1MB. Free memory was 88.6MB in the beginning and 86.5MB 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: 2.9s, 96 PlacesBefore, 31 PlacesAfterwards, 96 TransitionsBefore, 29 TransitionsAfterwards, 1144 CoEnabledTransitionPairs, 7 FixpointIterations, 52 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 95 TotalNumberOfCompositions, 3717 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1547, independent: 1305, independent conditional: 0, independent unconditional: 1305, dependent: 242, dependent conditional: 0, dependent unconditional: 242, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 687, independent: 649, independent conditional: 0, independent unconditional: 649, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1547, independent: 656, independent conditional: 0, independent unconditional: 656, dependent: 204, dependent conditional: 0, dependent unconditional: 204, unknown: 687, unknown conditional: 0, unknown unconditional: 687] , Statistics on independence cache: Total cache size (in pairs): 57, Positive cache size: 39, Positive conditional cache size: 0, Positive unconditional cache size: 39, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, 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: 695]: 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, 124 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: 5.3s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 378 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 201 mSDsluCounter, 103 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 849 IncrementalHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 29 mSDtfsCounter, 849 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=168occurred 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, 0.9s 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! [2023-08-29 21:33:40,628 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