./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 TOGETHER --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 TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 03:58:36,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:58:36,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:58:36,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:58:36,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:58:36,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:58:36,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:58:36,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:58:36,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:58:36,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:58:36,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:58:36,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:58:36,084 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:58:36,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:58:36,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:58:36,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:58:36,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:58:36,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:58:36,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:58:36,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:58:36,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:58:36,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:58:36,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:58:36,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:58:36,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:58:36,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:58:36,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:58:36,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:58:36,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:58:36,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:58:36,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:58:36,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:58:36,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:58:36,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:58:36,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:58:36,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:58:36,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:58:36,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:58:36,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:58:36,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:58:36,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:58:36,139 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:58:36,171 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:58:36,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:58:36,172 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:58:36,172 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:58:36,173 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:58:36,174 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:58:36,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:58:36,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:58:36,175 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:58:36,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:58:36,176 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:58:36,176 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:58:36,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:58:36,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:58:36,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:58:36,177 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:58:36,177 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:58:36,177 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:58:36,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:58:36,178 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:58:36,178 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:58:36,178 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:58:36,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:58:36,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:58:36,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:58:36,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:58:36,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:58:36,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:58:36,180 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:58:36,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:58:36,180 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:58:36,180 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:58:36,181 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:58:36,181 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:58:36,181 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f12d466eb2f537fd698a609dad75de92993414755aa8aadb35a91de87d65611 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:58:36,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:58:36,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:58:36,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:58:36,528 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:58:36,529 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:58:36,531 INFO L432 ainManager$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 [2023-08-30 03:58:37,630 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:58:37,939 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:58:37,944 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2023-08-30 03:58:37,964 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02e8476c7/bf34337044bb45e3ac71a07df37e4629/FLAG4edef9fe7 [2023-08-30 03:58:37,992 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02e8476c7/bf34337044bb45e3ac71a07df37e4629 [2023-08-30 03:58:37,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:58:37,995 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:58:37,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:58:37,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:58:38,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:58:38,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:58:37" (1/1) ... [2023-08-30 03:58:38,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25893752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:38, skipping insertion in model container [2023-08-30 03:58:38,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:58:37" (1/1) ... [2023-08-30 03:58:38,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:58:38,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:58:38,172 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] [2023-08-30 03:58:38,346 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:58:38,360 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:58:38,375 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] [2023-08-30 03:58:38,412 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:58:38,457 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:58:38,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:38 WrapperNode [2023-08-30 03:58:38,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:58:38,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:58:38,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:58:38,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:58:38,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:38" (1/1) ... [2023-08-30 03:58:38,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:38" (1/1) ... [2023-08-30 03:58:38,503 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 84 [2023-08-30 03:58:38,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:58:38,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:58:38,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:58:38,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:58:38,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:38" (1/1) ... [2023-08-30 03:58:38,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:38" (1/1) ... [2023-08-30 03:58:38,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:38" (1/1) ... [2023-08-30 03:58:38,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:38" (1/1) ... [2023-08-30 03:58:38,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:38" (1/1) ... [2023-08-30 03:58:38,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:38" (1/1) ... [2023-08-30 03:58:38,545 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:38" (1/1) ... [2023-08-30 03:58:38,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:38" (1/1) ... [2023-08-30 03:58:38,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:58:38,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:58:38,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:58:38,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:58:38,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:38" (1/1) ... [2023-08-30 03:58:38,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:58:38,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:58:38,589 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) [2023-08-30 03:58:38,613 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 [2023-08-30 03:58:38,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 03:58:38,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:58:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 03:58:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:58:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:58:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 03:58:38,633 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 03:58:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:58:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 03:58:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:58:38,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:58:38,635 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 03:58:38,813 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:58:38,814 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:58:38,989 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:58:38,995 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:58:38,996 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:58:38,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:58:38 BoogieIcfgContainer [2023-08-30 03:58:38,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:58:39,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:58:39,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:58:39,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:58:39,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:58:37" (1/3) ... [2023-08-30 03:58:39,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a74d59c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:58:39, skipping insertion in model container [2023-08-30 03:58:39,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:58:38" (2/3) ... [2023-08-30 03:58:39,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a74d59c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:58:39, skipping insertion in model container [2023-08-30 03:58:39,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:58:38" (3/3) ... [2023-08-30 03:58:39,006 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_01-priv_nr_true.i [2023-08-30 03:58:39,021 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:58:39,022 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-30 03:58:39,023 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:58:39,091 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 03:58:39,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 101 transitions, 210 flow [2023-08-30 03:58:39,161 INFO L130 PetriNetUnfolder]: 4/100 cut-off events. [2023-08-30 03:58:39,162 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:58:39,166 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. [2023-08-30 03:58:39,167 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 101 transitions, 210 flow [2023-08-30 03:58:39,170 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 96 transitions, 198 flow [2023-08-30 03:58:39,173 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:58:39,182 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 96 transitions, 198 flow [2023-08-30 03:58:39,184 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 96 transitions, 198 flow [2023-08-30 03:58:39,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 96 transitions, 198 flow [2023-08-30 03:58:39,207 INFO L130 PetriNetUnfolder]: 4/96 cut-off events. [2023-08-30 03:58:39,207 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:58:39,208 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. [2023-08-30 03:58:39,209 INFO L119 LiptonReduction]: Number of co-enabled transitions 1144 [2023-08-30 03:58:42,063 INFO L134 LiptonReduction]: Checked pairs total: 3717 [2023-08-30 03:58:42,063 INFO L136 LiptonReduction]: Total number of compositions: 95 [2023-08-30 03:58:42,076 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:58:42,082 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;@1645b4b5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:58:42,082 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-08-30 03:58:42,084 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 03:58:42,084 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:58:42,084 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:58:42,084 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:58:42,085 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)] === [2023-08-30 03:58:42,089 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:58:42,090 INFO L85 PathProgramCache]: Analyzing trace with hash 373, now seen corresponding path program 1 times [2023-08-30 03:58:42,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:58:42,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308301434] [2023-08-30 03:58:42,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:58:42,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:58:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:58:42,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:58:42,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:58:42,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308301434] [2023-08-30 03:58:42,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308301434] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:58:42,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:58:42,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:58:42,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909023018] [2023-08-30 03:58:42,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:58:42,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:58:42,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:58:42,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:58:42,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:58:42,219 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 196 [2023-08-30 03:58:42,221 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) [2023-08-30 03:58:42,221 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:58:42,222 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 196 [2023-08-30 03:58:42,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:58:42,283 INFO L130 PetriNetUnfolder]: 81/186 cut-off events. [2023-08-30 03:58:42,283 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:58:42,285 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. [2023-08-30 03:58:42,289 INFO L137 encePairwiseOnDemand]: 191/196 looper letters, 22 selfloop transitions, 0 changer transitions 0/23 dead transitions. [2023-08-30 03:58:42,289 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 23 transitions, 96 flow [2023-08-30 03:58:42,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:58:42,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:58:42,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 209 transitions. [2023-08-30 03:58:42,305 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5331632653061225 [2023-08-30 03:58:42,306 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 209 transitions. [2023-08-30 03:58:42,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 209 transitions. [2023-08-30 03:58:42,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:58:42,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 209 transitions. [2023-08-30 03:58:42,315 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) [2023-08-30 03:58:42,320 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) [2023-08-30 03:58:42,321 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) [2023-08-30 03:58:42,322 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 64 flow. Second operand 2 states and 209 transitions. [2023-08-30 03:58:42,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 23 transitions, 96 flow [2023-08-30 03:58:42,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 23 transitions, 92 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:58:42,328 INFO L231 Difference]: Finished difference. Result has 26 places, 23 transitions, 48 flow [2023-08-30 03:58:42,329 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} [2023-08-30 03:58:42,336 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2023-08-30 03:58:42,337 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 23 transitions, 48 flow [2023-08-30 03:58:42,337 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) [2023-08-30 03:58:42,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:58:42,337 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 03:58:42,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:58:42,339 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)] === [2023-08-30 03:58:42,341 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:58:42,341 INFO L85 PathProgramCache]: Analyzing trace with hash 11391089, now seen corresponding path program 1 times [2023-08-30 03:58:42,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:58:42,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829886328] [2023-08-30 03:58:42,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:58:42,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:58:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:58:42,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:58:42,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:58:42,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829886328] [2023-08-30 03:58:42,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829886328] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:58:42,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:58:42,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:58:42,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439656127] [2023-08-30 03:58:42,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:58:42,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:58:42,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:58:42,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:58:42,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:58:42,669 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 196 [2023-08-30 03:58:42,670 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) [2023-08-30 03:58:42,670 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:58:42,670 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 196 [2023-08-30 03:58:42,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:58:42,753 INFO L130 PetriNetUnfolder]: 79/182 cut-off events. [2023-08-30 03:58:42,753 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:58:42,754 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. [2023-08-30 03:58:42,756 INFO L137 encePairwiseOnDemand]: 192/196 looper letters, 24 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2023-08-30 03:58:42,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 28 transitions, 112 flow [2023-08-30 03:58:42,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:58:42,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:58:42,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2023-08-30 03:58:42,762 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48639455782312924 [2023-08-30 03:58:42,762 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 286 transitions. [2023-08-30 03:58:42,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 286 transitions. [2023-08-30 03:58:42,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:58:42,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 286 transitions. [2023-08-30 03:58:42,765 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) [2023-08-30 03:58:42,768 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) [2023-08-30 03:58:42,768 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) [2023-08-30 03:58:42,768 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 48 flow. Second operand 3 states and 286 transitions. [2023-08-30 03:58:42,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 28 transitions, 112 flow [2023-08-30 03:58:42,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 28 transitions, 112 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:58:42,770 INFO L231 Difference]: Finished difference. Result has 29 places, 25 transitions, 67 flow [2023-08-30 03:58:42,770 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} [2023-08-30 03:58:42,771 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -2 predicate places. [2023-08-30 03:58:42,771 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 25 transitions, 67 flow [2023-08-30 03:58:42,771 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) [2023-08-30 03:58:42,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:58:42,772 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 03:58:42,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:58:42,772 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)] === [2023-08-30 03:58:42,774 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:58:42,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1938074986, now seen corresponding path program 1 times [2023-08-30 03:58:42,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:58:42,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896791420] [2023-08-30 03:58:42,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:58:42,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:58:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:58:42,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:58:42,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:58:42,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896791420] [2023-08-30 03:58:42,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896791420] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:58:42,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:58:42,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:58:42,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197920216] [2023-08-30 03:58:42,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:58:42,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:58:42,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:58:42,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:58:42,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:58:42,901 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 196 [2023-08-30 03:58:42,902 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) [2023-08-30 03:58:42,902 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:58:42,902 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 196 [2023-08-30 03:58:42,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:58:42,974 INFO L130 PetriNetUnfolder]: 89/204 cut-off events. [2023-08-30 03:58:42,975 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-08-30 03:58:42,978 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. [2023-08-30 03:58:42,979 INFO L137 encePairwiseOnDemand]: 190/196 looper letters, 30 selfloop transitions, 5 changer transitions 0/36 dead transitions. [2023-08-30 03:58:42,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 36 transitions, 161 flow [2023-08-30 03:58:42,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:58:42,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:58:42,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 293 transitions. [2023-08-30 03:58:42,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49829931972789115 [2023-08-30 03:58:42,982 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 293 transitions. [2023-08-30 03:58:42,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 293 transitions. [2023-08-30 03:58:42,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:58:42,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 293 transitions. [2023-08-30 03:58:42,984 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) [2023-08-30 03:58:42,985 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) [2023-08-30 03:58:42,986 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) [2023-08-30 03:58:42,986 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 67 flow. Second operand 3 states and 293 transitions. [2023-08-30 03:58:42,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 36 transitions, 161 flow [2023-08-30 03:58:42,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 36 transitions, 158 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 03:58:42,988 INFO L231 Difference]: Finished difference. Result has 31 places, 28 transitions, 97 flow [2023-08-30 03:58:42,988 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} [2023-08-30 03:58:42,989 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 0 predicate places. [2023-08-30 03:58:42,990 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 28 transitions, 97 flow [2023-08-30 03:58:42,990 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) [2023-08-30 03:58:42,990 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:58:42,990 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 03:58:42,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 03:58:42,991 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)] === [2023-08-30 03:58:42,991 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:58:42,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1938060165, now seen corresponding path program 1 times [2023-08-30 03:58:42,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:58:42,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803333086] [2023-08-30 03:58:42,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:58:42,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:58:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:58:43,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:58:43,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:58:43,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803333086] [2023-08-30 03:58:43,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803333086] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:58:43,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:58:43,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:58:43,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113683973] [2023-08-30 03:58:43,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:58:43,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 03:58:43,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:58:43,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 03:58:43,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 03:58:43,169 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 196 [2023-08-30 03:58:43,170 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) [2023-08-30 03:58:43,170 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:58:43,170 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 196 [2023-08-30 03:58:43,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:58:43,288 INFO L130 PetriNetUnfolder]: 109/247 cut-off events. [2023-08-30 03:58:43,288 INFO L131 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2023-08-30 03:58:43,289 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. [2023-08-30 03:58:43,290 INFO L137 encePairwiseOnDemand]: 189/196 looper letters, 42 selfloop transitions, 10 changer transitions 0/52 dead transitions. [2023-08-30 03:58:43,290 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 52 transitions, 281 flow [2023-08-30 03:58:43,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:58:43,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:58:43,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 547 transitions. [2023-08-30 03:58:43,292 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4651360544217687 [2023-08-30 03:58:43,293 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 547 transitions. [2023-08-30 03:58:43,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 547 transitions. [2023-08-30 03:58:43,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:58:43,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 547 transitions. [2023-08-30 03:58:43,294 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) [2023-08-30 03:58:43,296 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) [2023-08-30 03:58:43,297 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) [2023-08-30 03:58:43,297 INFO L175 Difference]: Start difference. First operand has 31 places, 28 transitions, 97 flow. Second operand 6 states and 547 transitions. [2023-08-30 03:58:43,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 52 transitions, 281 flow [2023-08-30 03:58:43,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 52 transitions, 268 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-30 03:58:43,300 INFO L231 Difference]: Finished difference. Result has 38 places, 35 transitions, 168 flow [2023-08-30 03:58:43,300 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} [2023-08-30 03:58:43,301 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2023-08-30 03:58:43,301 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 35 transitions, 168 flow [2023-08-30 03:58:43,302 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) [2023-08-30 03:58:43,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:58:43,302 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:58:43,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 03:58:43,302 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)] === [2023-08-30 03:58:43,303 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:58:43,303 INFO L85 PathProgramCache]: Analyzing trace with hash 49416458, now seen corresponding path program 1 times [2023-08-30 03:58:43,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:58:43,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173007443] [2023-08-30 03:58:43,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:58:43,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:58:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:58:43,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:58:43,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:58:43,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173007443] [2023-08-30 03:58:43,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173007443] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:58:43,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:58:43,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 03:58:43,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419664190] [2023-08-30 03:58:43,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:58:43,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:58:43,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:58:43,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:58:43,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:58:43,367 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 196 [2023-08-30 03:58:43,368 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) [2023-08-30 03:58:43,368 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:58:43,368 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 196 [2023-08-30 03:58:43,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:58:43,396 INFO L130 PetriNetUnfolder]: 3/50 cut-off events. [2023-08-30 03:58:43,396 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2023-08-30 03:58:43,397 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. [2023-08-30 03:58:43,397 INFO L137 encePairwiseOnDemand]: 190/196 looper letters, 17 selfloop transitions, 6 changer transitions 0/25 dead transitions. [2023-08-30 03:58:43,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 25 transitions, 147 flow [2023-08-30 03:58:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:58:43,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:58:43,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2023-08-30 03:58:43,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2023-08-30 03:58:43,399 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 280 transitions. [2023-08-30 03:58:43,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 280 transitions. [2023-08-30 03:58:43,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:58:43,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 280 transitions. [2023-08-30 03:58:43,400 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) [2023-08-30 03:58:43,401 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) [2023-08-30 03:58:43,402 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) [2023-08-30 03:58:43,402 INFO L175 Difference]: Start difference. First operand has 38 places, 35 transitions, 168 flow. Second operand 3 states and 280 transitions. [2023-08-30 03:58:43,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 25 transitions, 147 flow [2023-08-30 03:58:43,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 25 transitions, 125 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-08-30 03:58:43,404 INFO L231 Difference]: Finished difference. Result has 32 places, 25 transitions, 91 flow [2023-08-30 03:58:43,404 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} [2023-08-30 03:58:43,404 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 1 predicate places. [2023-08-30 03:58:43,405 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 91 flow [2023-08-30 03:58:43,405 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) [2023-08-30 03:58:43,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:58:43,405 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:58:43,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 03:58:43,406 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)] === [2023-08-30 03:58:43,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:58:43,406 INFO L85 PathProgramCache]: Analyzing trace with hash 494613488, now seen corresponding path program 1 times [2023-08-30 03:58:43,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:58:43,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112872578] [2023-08-30 03:58:43,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:58:43,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:58:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:58:43,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:58:43,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:58:43,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112872578] [2023-08-30 03:58:43,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112872578] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:58:43,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:58:43,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:58:43,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74258321] [2023-08-30 03:58:43,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:58:43,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:58:43,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:58:43,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:58:43,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:58:43,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 196 [2023-08-30 03:58:43,463 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) [2023-08-30 03:58:43,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:58:43,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 196 [2023-08-30 03:58:43,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:58:43,494 INFO L130 PetriNetUnfolder]: 2/41 cut-off events. [2023-08-30 03:58:43,495 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 03:58:43,495 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. [2023-08-30 03:58:43,495 INFO L137 encePairwiseOnDemand]: 193/196 looper letters, 20 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2023-08-30 03:58:43,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 24 transitions, 131 flow [2023-08-30 03:58:43,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:58:43,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:58:43,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 269 transitions. [2023-08-30 03:58:43,497 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4574829931972789 [2023-08-30 03:58:43,497 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 269 transitions. [2023-08-30 03:58:43,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 269 transitions. [2023-08-30 03:58:43,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:58:43,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 269 transitions. [2023-08-30 03:58:43,498 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) [2023-08-30 03:58:43,499 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) [2023-08-30 03:58:43,500 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) [2023-08-30 03:58:43,500 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 91 flow. Second operand 3 states and 269 transitions. [2023-08-30 03:58:43,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 24 transitions, 131 flow [2023-08-30 03:58:43,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 24 transitions, 126 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 03:58:43,501 INFO L231 Difference]: Finished difference. Result has 32 places, 24 transitions, 86 flow [2023-08-30 03:58:43,502 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} [2023-08-30 03:58:43,502 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 1 predicate places. [2023-08-30 03:58:43,502 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 86 flow [2023-08-30 03:58:43,503 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) [2023-08-30 03:58:43,503 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:58:43,503 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:58:43,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 03:58:43,503 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)] === [2023-08-30 03:58:43,504 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:58:43,504 INFO L85 PathProgramCache]: Analyzing trace with hash 494613489, now seen corresponding path program 1 times [2023-08-30 03:58:43,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:58:43,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28619170] [2023-08-30 03:58:43,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:58:43,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:58:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:58:43,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:58:43,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:58:43,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28619170] [2023-08-30 03:58:43,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28619170] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:58:43,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:58:43,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:58:43,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890336284] [2023-08-30 03:58:43,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:58:43,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:58:43,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:58:43,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:58:43,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:58:43,570 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 196 [2023-08-30 03:58:43,571 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) [2023-08-30 03:58:43,571 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:58:43,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 196 [2023-08-30 03:58:43,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:58:43,596 INFO L130 PetriNetUnfolder]: 1/32 cut-off events. [2023-08-30 03:58:43,597 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 03:58:43,597 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. [2023-08-30 03:58:43,597 INFO L137 encePairwiseOnDemand]: 193/196 looper letters, 19 selfloop transitions, 2 changer transitions 0/23 dead transitions. [2023-08-30 03:58:43,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 23 transitions, 125 flow [2023-08-30 03:58:43,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:58:43,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:58:43,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 277 transitions. [2023-08-30 03:58:43,599 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4710884353741497 [2023-08-30 03:58:43,599 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 277 transitions. [2023-08-30 03:58:43,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 277 transitions. [2023-08-30 03:58:43,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:58:43,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 277 transitions. [2023-08-30 03:58:43,600 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) [2023-08-30 03:58:43,601 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) [2023-08-30 03:58:43,602 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) [2023-08-30 03:58:43,602 INFO L175 Difference]: Start difference. First operand has 32 places, 24 transitions, 86 flow. Second operand 3 states and 277 transitions. [2023-08-30 03:58:43,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 23 transitions, 125 flow [2023-08-30 03:58:43,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 23 transitions, 121 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:58:43,603 INFO L231 Difference]: Finished difference. Result has 31 places, 23 transitions, 83 flow [2023-08-30 03:58:43,603 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} [2023-08-30 03:58:43,604 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 0 predicate places. [2023-08-30 03:58:43,604 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 83 flow [2023-08-30 03:58:43,604 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) [2023-08-30 03:58:43,605 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:58:43,605 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:58:43,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 03:58:43,605 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)] === [2023-08-30 03:58:43,605 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:58:43,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1417798883, now seen corresponding path program 1 times [2023-08-30 03:58:43,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:58:43,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020946097] [2023-08-30 03:58:43,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:58:43,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:58:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:58:43,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:58:43,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:58:43,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020946097] [2023-08-30 03:58:43,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020946097] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:58:43,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:58:43,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:58:43,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757807001] [2023-08-30 03:58:43,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:58:43,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:58:43,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:58:43,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:58:43,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:58:43,748 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 196 [2023-08-30 03:58:43,748 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) [2023-08-30 03:58:43,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:58:43,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 196 [2023-08-30 03:58:43,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:58:43,812 INFO L130 PetriNetUnfolder]: 1/31 cut-off events. [2023-08-30 03:58:43,813 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:58:43,813 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. [2023-08-30 03:58:43,813 INFO L137 encePairwiseOnDemand]: 189/196 looper letters, 19 selfloop transitions, 7 changer transitions 0/26 dead transitions. [2023-08-30 03:58:43,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 26 transitions, 141 flow [2023-08-30 03:58:43,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 03:58:43,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 03:58:43,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 512 transitions. [2023-08-30 03:58:43,815 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43537414965986393 [2023-08-30 03:58:43,815 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 512 transitions. [2023-08-30 03:58:43,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 512 transitions. [2023-08-30 03:58:43,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:58:43,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 512 transitions. [2023-08-30 03:58:43,817 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) [2023-08-30 03:58:43,838 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) [2023-08-30 03:58:43,838 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) [2023-08-30 03:58:43,838 INFO L175 Difference]: Start difference. First operand has 31 places, 23 transitions, 83 flow. Second operand 6 states and 512 transitions. [2023-08-30 03:58:43,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 26 transitions, 141 flow [2023-08-30 03:58:43,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 26 transitions, 137 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:58:43,841 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 95 flow [2023-08-30 03:58:43,841 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} [2023-08-30 03:58:43,844 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 3 predicate places. [2023-08-30 03:58:43,844 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 95 flow [2023-08-30 03:58:43,844 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) [2023-08-30 03:58:43,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:58:43,844 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:58:43,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 03:58:43,844 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)] === [2023-08-30 03:58:43,845 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:58:43,845 INFO L85 PathProgramCache]: Analyzing trace with hash 690280297, now seen corresponding path program 1 times [2023-08-30 03:58:43,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:58:43,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396140396] [2023-08-30 03:58:43,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:58:43,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:58:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:58:43,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:58:43,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:58:43,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396140396] [2023-08-30 03:58:43,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396140396] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:58:43,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:58:43,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 03:58:43,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556130963] [2023-08-30 03:58:43,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:58:43,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 03:58:43,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:58:43,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 03:58:43,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-30 03:58:44,003 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 196 [2023-08-30 03:58:44,004 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) [2023-08-30 03:58:44,004 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:58:44,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 196 [2023-08-30 03:58:44,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:58:44,101 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2023-08-30 03:58:44,102 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-30 03:58:44,102 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. [2023-08-30 03:58:44,102 INFO L137 encePairwiseOnDemand]: 188/196 looper letters, 22 selfloop transitions, 10 changer transitions 0/32 dead transitions. [2023-08-30 03:58:44,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 32 transitions, 180 flow [2023-08-30 03:58:44,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 03:58:44,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 03:58:44,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 762 transitions. [2023-08-30 03:58:44,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43197278911564624 [2023-08-30 03:58:44,105 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 762 transitions. [2023-08-30 03:58:44,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 762 transitions. [2023-08-30 03:58:44,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:58:44,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 762 transitions. [2023-08-30 03:58:44,107 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) [2023-08-30 03:58:44,110 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) [2023-08-30 03:58:44,110 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) [2023-08-30 03:58:44,110 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 95 flow. Second operand 9 states and 762 transitions. [2023-08-30 03:58:44,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 32 transitions, 180 flow [2023-08-30 03:58:44,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 32 transitions, 168 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 03:58:44,112 INFO L231 Difference]: Finished difference. Result has 39 places, 24 transitions, 113 flow [2023-08-30 03:58:44,112 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} [2023-08-30 03:58:44,113 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 8 predicate places. [2023-08-30 03:58:44,113 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 24 transitions, 113 flow [2023-08-30 03:58:44,113 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) [2023-08-30 03:58:44,113 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:58:44,114 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:58:44,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 03:58:44,114 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)] === [2023-08-30 03:58:44,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:58:44,114 INFO L85 PathProgramCache]: Analyzing trace with hash -972451540, now seen corresponding path program 1 times [2023-08-30 03:58:44,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:58:44,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267884766] [2023-08-30 03:58:44,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:58:44,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:58:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:58:44,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:58:44,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:58:44,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267884766] [2023-08-30 03:58:44,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267884766] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:58:44,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:58:44,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:58:44,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100034651] [2023-08-30 03:58:44,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:58:44,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:58:44,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:58:44,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:58:44,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:58:44,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 196 [2023-08-30 03:58:44,241 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) [2023-08-30 03:58:44,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:58:44,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 196 [2023-08-30 03:58:44,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:58:44,260 INFO L130 PetriNetUnfolder]: 0/30 cut-off events. [2023-08-30 03:58:44,260 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-08-30 03:58:44,260 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. [2023-08-30 03:58:44,261 INFO L137 encePairwiseOnDemand]: 194/196 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2023-08-30 03:58:44,261 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 23 transitions, 153 flow [2023-08-30 03:58:44,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:58:44,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:58:44,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 277 transitions. [2023-08-30 03:58:44,262 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4710884353741497 [2023-08-30 03:58:44,263 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 277 transitions. [2023-08-30 03:58:44,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 277 transitions. [2023-08-30 03:58:44,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:58:44,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 277 transitions. [2023-08-30 03:58:44,264 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) [2023-08-30 03:58:44,265 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) [2023-08-30 03:58:44,266 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) [2023-08-30 03:58:44,266 INFO L175 Difference]: Start difference. First operand has 39 places, 24 transitions, 113 flow. Second operand 3 states and 277 transitions. [2023-08-30 03:58:44,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 23 transitions, 153 flow [2023-08-30 03:58:44,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 23 transitions, 137 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-08-30 03:58:44,268 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-30 03:58:44,268 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} [2023-08-30 03:58:44,269 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2023-08-30 03:58:44,269 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-30 03:58:44,270 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) [2023-08-30 03:58:44,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (11 of 12 remaining) [2023-08-30 03:58:44,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 12 remaining) [2023-08-30 03:58:44,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2023-08-30 03:58:44,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (8 of 12 remaining) [2023-08-30 03:58:44,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 12 remaining) [2023-08-30 03:58:44,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 12 remaining) [2023-08-30 03:58:44,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (5 of 12 remaining) [2023-08-30 03:58:44,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2023-08-30 03:58:44,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 12 remaining) [2023-08-30 03:58:44,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 12 remaining) [2023-08-30 03:58:44,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 12 remaining) [2023-08-30 03:58:44,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 12 remaining) [2023-08-30 03:58:44,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 03:58:44,275 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:58:44,279 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:58:44,279 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:58:44,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:58:44 BasicIcfg [2023-08-30 03:58:44,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:58:44,283 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:58:44,284 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:58:44,284 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:58:44,284 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:58:38" (3/4) ... [2023-08-30 03:58:44,286 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 03:58:44,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 03:58:44,296 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-08-30 03:58:44,296 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-30 03:58:44,297 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 03:58:44,297 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 03:58:44,329 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 03:58:44,329 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:58:44,330 INFO L158 Benchmark]: Toolchain (without parser) took 6334.31ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 68.6MB in the beginning and 97.9MB in the end (delta: -29.3MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2023-08-30 03:58:44,330 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 65.0MB. Free memory was 42.9MB in the beginning and 42.8MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:58:44,330 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.98ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 49.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-30 03:58:44,330 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.77ms. Allocated memory is still 92.3MB. Free memory was 49.4MB in the beginning and 70.5MB in the end (delta: -21.1MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2023-08-30 03:58:44,331 INFO L158 Benchmark]: Boogie Preprocessor took 52.84ms. Allocated memory is still 92.3MB. Free memory was 70.5MB in the beginning and 68.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:58:44,331 INFO L158 Benchmark]: RCFGBuilder took 439.41ms. Allocated memory is still 92.3MB. Free memory was 68.9MB in the beginning and 54.6MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 03:58:44,331 INFO L158 Benchmark]: TraceAbstraction took 5283.44ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 54.1MB in the beginning and 101.0MB in the end (delta: -46.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:58:44,332 INFO L158 Benchmark]: Witness Printer took 45.69ms. Allocated memory is still 134.2MB. Free memory was 100.0MB in the beginning and 97.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:58:44,334 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 65.0MB. Free memory was 42.9MB in the beginning and 42.8MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 460.98ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 49.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.77ms. Allocated memory is still 92.3MB. Free memory was 49.4MB in the beginning and 70.5MB in the end (delta: -21.1MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.84ms. Allocated memory is still 92.3MB. Free memory was 70.5MB in the beginning and 68.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 439.41ms. Allocated memory is still 92.3MB. Free memory was 68.9MB in the beginning and 54.6MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5283.44ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 54.1MB in the beginning and 101.0MB in the end (delta: -46.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 45.69ms. Allocated memory is still 134.2MB. Free memory was 100.0MB in the beginning and 97.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 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: 5.2s, 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, 0.6s 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, 0.8s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 432 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 03:58:44,361 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