./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_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 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 00:24:08,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 00:24:08,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 00:24:09,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 00:24:09,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 00:24:09,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 00:24:09,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 00:24:09,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 00:24:09,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 00:24:09,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 00:24:09,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 00:24:09,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 00:24:09,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 00:24:09,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 00:24:09,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 00:24:09,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 00:24:09,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 00:24:09,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 00:24:09,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 00:24:09,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 00:24:09,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 00:24:09,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 00:24:09,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 00:24:09,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 00:24:09,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 00:24:09,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 00:24:09,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 00:24:09,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 00:24:09,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 00:24:09,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 00:24:09,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 00:24:09,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 00:24:09,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 00:24:09,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 00:24:09,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 00:24:09,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 00:24:09,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 00:24:09,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 00:24:09,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 00:24:09,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 00:24:09,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 00:24:09,067 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-09-01 00:24:09,099 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 00:24:09,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 00:24:09,100 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 00:24:09,100 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 00:24:09,101 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 00:24:09,101 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 00:24:09,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 00:24:09,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 00:24:09,102 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 00:24:09,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 00:24:09,103 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 00:24:09,103 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 00:24:09,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 00:24:09,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 00:24:09,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 00:24:09,104 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-09-01 00:24:09,104 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-09-01 00:24:09,104 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-09-01 00:24:09,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 00:24:09,104 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-09-01 00:24:09,105 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 00:24:09,105 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 00:24:09,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 00:24:09,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 00:24:09,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 00:24:09,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:24:09,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 00:24:09,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 00:24:09,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 00:24:09,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 00:24:09,106 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 00:24:09,107 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 00:24:09,107 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 00:24:09,107 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 00:24:09,107 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 00:24:09,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 00:24:09,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 00:24:09,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 00:24:09,429 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 00:24:09,429 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 00:24:09,430 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2023-09-01 00:24:10,492 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 00:24:10,722 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 00:24:10,723 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2023-09-01 00:24:10,734 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14e9c2643/8bef9e4cef1a4ade8bd200c0207078ca/FLAG31bd4e038 [2023-09-01 00:24:10,747 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14e9c2643/8bef9e4cef1a4ade8bd200c0207078ca [2023-09-01 00:24:10,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 00:24:10,749 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 00:24:10,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 00:24:10,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 00:24:10,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 00:24:10,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:24:10" (1/1) ... [2023-09-01 00:24:10,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24a0dbfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:10, skipping insertion in model container [2023-09-01 00:24:10,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:24:10" (1/1) ... [2023-09-01 00:24:10,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 00:24:10,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 00:24:10,915 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_24-multiple-protecting_true.i[1096,1109] [2023-09-01 00:24:11,086 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:24:11,100 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 00:24:11,116 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_24-multiple-protecting_true.i[1096,1109] [2023-09-01 00:24:11,208 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:24:11,252 INFO L208 MainTranslator]: Completed translation [2023-09-01 00:24:11,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:11 WrapperNode [2023-09-01 00:24:11,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 00:24:11,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 00:24:11,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 00:24:11,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 00:24:11,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:11" (1/1) ... [2023-09-01 00:24:11,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:11" (1/1) ... [2023-09-01 00:24:11,323 INFO L138 Inliner]: procedures = 162, calls = 46, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 90 [2023-09-01 00:24:11,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 00:24:11,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 00:24:11,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 00:24:11,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 00:24:11,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:11" (1/1) ... [2023-09-01 00:24:11,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:11" (1/1) ... [2023-09-01 00:24:11,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:11" (1/1) ... [2023-09-01 00:24:11,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:11" (1/1) ... [2023-09-01 00:24:11,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:11" (1/1) ... [2023-09-01 00:24:11,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:11" (1/1) ... [2023-09-01 00:24:11,362 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:11" (1/1) ... [2023-09-01 00:24:11,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:11" (1/1) ... [2023-09-01 00:24:11,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 00:24:11,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 00:24:11,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 00:24:11,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 00:24:11,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:11" (1/1) ... [2023-09-01 00:24:11,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:24:11,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 00:24:11,409 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 00:24:11,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 00:24:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 00:24:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 00:24:11,451 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 00:24:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 00:24:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 00:24:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 00:24:11,452 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 00:24:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 00:24:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 00:24:11,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 00:24:11,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 00:24:11,454 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 00:24:11,645 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 00:24:11,647 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 00:24:11,915 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 00:24:11,922 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 00:24:11,922 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 00:24:11,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:24:11 BoogieIcfgContainer [2023-09-01 00:24:11,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 00:24:11,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 00:24:11,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 00:24:11,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 00:24:11,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 12:24:10" (1/3) ... [2023-09-01 00:24:11,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608e298a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:24:11, skipping insertion in model container [2023-09-01 00:24:11,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:24:11" (2/3) ... [2023-09-01 00:24:11,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608e298a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:24:11, skipping insertion in model container [2023-09-01 00:24:11,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:24:11" (3/3) ... [2023-09-01 00:24:11,942 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2023-09-01 00:24:11,956 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 00:24:11,956 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-09-01 00:24:11,956 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 00:24:12,031 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 00:24:12,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 139 transitions, 286 flow [2023-09-01 00:24:12,146 INFO L130 PetriNetUnfolder]: 4/138 cut-off events. [2023-09-01 00:24:12,147 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:24:12,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 138 events. 4/138 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 125 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2023-09-01 00:24:12,157 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 139 transitions, 286 flow [2023-09-01 00:24:12,165 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 134 transitions, 274 flow [2023-09-01 00:24:12,184 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 00:24:12,192 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 134 transitions, 274 flow [2023-09-01 00:24:12,196 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 134 transitions, 274 flow [2023-09-01 00:24:12,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 134 transitions, 274 flow [2023-09-01 00:24:12,255 INFO L130 PetriNetUnfolder]: 4/134 cut-off events. [2023-09-01 00:24:12,256 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:24:12,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 134 events. 4/134 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 124 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2023-09-01 00:24:12,261 INFO L119 LiptonReduction]: Number of co-enabled transitions 3630 [2023-09-01 00:24:15,766 INFO L134 LiptonReduction]: Checked pairs total: 11011 [2023-09-01 00:24:15,767 INFO L136 LiptonReduction]: Total number of compositions: 109 [2023-09-01 00:24:15,792 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 00:24:15,797 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;@beff30, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 00:24:15,797 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-09-01 00:24:15,801 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-09-01 00:24:15,801 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:24:15,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:15,803 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-09-01 00:24:15,803 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-09-01 00:24:15,808 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:15,808 INFO L85 PathProgramCache]: Analyzing trace with hash 471, now seen corresponding path program 1 times [2023-09-01 00:24:15,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:15,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002328627] [2023-09-01 00:24:15,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:15,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:15,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:15,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:15,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002328627] [2023-09-01 00:24:15,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002328627] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:15,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:15,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-09-01 00:24:15,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903713295] [2023-09-01 00:24:15,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:15,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-01 00:24:15,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:15,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-01 00:24:15,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-01 00:24:15,959 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 248 [2023-09-01 00:24:15,962 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 46 transitions, 98 flow. Second operand has 2 states, 2 states have (on average 129.5) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:15,962 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:15,962 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 248 [2023-09-01 00:24:15,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:16,085 INFO L130 PetriNetUnfolder]: 264/614 cut-off events. [2023-09-01 00:24:16,086 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:24:16,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1186 conditions, 614 events. 264/614 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2734 event pairs, 264 based on Foata normal form. 13/530 useless extension candidates. Maximal degree in co-relation 1172. Up to 567 conditions per place. [2023-09-01 00:24:16,091 INFO L137 encePairwiseOnDemand]: 245/248 looper letters, 37 selfloop transitions, 0 changer transitions 1/43 dead transitions. [2023-09-01 00:24:16,091 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 43 transitions, 168 flow [2023-09-01 00:24:16,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-01 00:24:16,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-09-01 00:24:16,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 299 transitions. [2023-09-01 00:24:16,103 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6028225806451613 [2023-09-01 00:24:16,104 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 299 transitions. [2023-09-01 00:24:16,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 299 transitions. [2023-09-01 00:24:16,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:16,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 299 transitions. [2023-09-01 00:24:16,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 149.5) internal successors, (299), 2 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:16,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:16,114 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:16,116 INFO L175 Difference]: Start difference. First operand has 49 places, 46 transitions, 98 flow. Second operand 2 states and 299 transitions. [2023-09-01 00:24:16,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 43 transitions, 168 flow [2023-09-01 00:24:16,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 43 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:24:16,120 INFO L231 Difference]: Finished difference. Result has 46 places, 42 transitions, 86 flow [2023-09-01 00:24:16,122 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=86, PETRI_PLACES=46, PETRI_TRANSITIONS=42} [2023-09-01 00:24:16,125 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2023-09-01 00:24:16,125 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 42 transitions, 86 flow [2023-09-01 00:24:16,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 129.5) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:16,126 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:16,126 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 00:24:16,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 00:24:16,126 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-09-01 00:24:16,127 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:16,127 INFO L85 PathProgramCache]: Analyzing trace with hash 446192410, now seen corresponding path program 1 times [2023-09-01 00:24:16,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:16,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470740830] [2023-09-01 00:24:16,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:16,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:16,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:16,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:16,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470740830] [2023-09-01 00:24:16,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470740830] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:16,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:16,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:24:16,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843325592] [2023-09-01 00:24:16,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:16,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:24:16,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:16,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:24:16,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:24:16,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 248 [2023-09-01 00:24:16,346 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 42 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:16,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:16,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 248 [2023-09-01 00:24:16,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:16,492 INFO L130 PetriNetUnfolder]: 243/606 cut-off events. [2023-09-01 00:24:16,493 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:24:16,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1133 conditions, 606 events. 243/606 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2844 event pairs, 63 based on Foata normal form. 0/535 useless extension candidates. Maximal degree in co-relation 1130. Up to 430 conditions per place. [2023-09-01 00:24:16,497 INFO L137 encePairwiseOnDemand]: 243/248 looper letters, 53 selfloop transitions, 2 changer transitions 0/60 dead transitions. [2023-09-01 00:24:16,498 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 60 transitions, 232 flow [2023-09-01 00:24:16,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:24:16,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:24:16,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 436 transitions. [2023-09-01 00:24:16,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5860215053763441 [2023-09-01 00:24:16,501 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 436 transitions. [2023-09-01 00:24:16,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 436 transitions. [2023-09-01 00:24:16,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:16,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 436 transitions. [2023-09-01 00:24:16,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:16,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:16,506 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:16,506 INFO L175 Difference]: Start difference. First operand has 46 places, 42 transitions, 86 flow. Second operand 3 states and 436 transitions. [2023-09-01 00:24:16,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 60 transitions, 232 flow [2023-09-01 00:24:16,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 60 transitions, 232 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-09-01 00:24:16,508 INFO L231 Difference]: Finished difference. Result has 48 places, 42 transitions, 98 flow [2023-09-01 00:24:16,509 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=48, PETRI_TRANSITIONS=42} [2023-09-01 00:24:16,509 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2023-09-01 00:24:16,510 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 98 flow [2023-09-01 00:24:16,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:16,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:16,510 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:16,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 00:24:16,511 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-09-01 00:24:16,511 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:16,511 INFO L85 PathProgramCache]: Analyzing trace with hash -445830245, now seen corresponding path program 1 times [2023-09-01 00:24:16,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:16,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043074268] [2023-09-01 00:24:16,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:16,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:16,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:16,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:16,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043074268] [2023-09-01 00:24:16,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043074268] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:16,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:16,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 00:24:16,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105078032] [2023-09-01 00:24:16,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:16,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:24:16,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:16,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:24:16,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:24:16,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 248 [2023-09-01 00:24:16,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:16,668 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:16,668 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 248 [2023-09-01 00:24:16,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:16,841 INFO L130 PetriNetUnfolder]: 397/849 cut-off events. [2023-09-01 00:24:16,841 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2023-09-01 00:24:16,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1815 conditions, 849 events. 397/849 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3916 event pairs, 208 based on Foata normal form. 6/795 useless extension candidates. Maximal degree in co-relation 1810. Up to 690 conditions per place. [2023-09-01 00:24:16,846 INFO L137 encePairwiseOnDemand]: 232/248 looper letters, 62 selfloop transitions, 16 changer transitions 0/78 dead transitions. [2023-09-01 00:24:16,846 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 78 transitions, 335 flow [2023-09-01 00:24:16,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:24:16,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:24:16,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 422 transitions. [2023-09-01 00:24:16,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5672043010752689 [2023-09-01 00:24:16,848 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 422 transitions. [2023-09-01 00:24:16,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 422 transitions. [2023-09-01 00:24:16,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:16,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 422 transitions. [2023-09-01 00:24:16,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:16,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:16,852 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:16,852 INFO L175 Difference]: Start difference. First operand has 48 places, 42 transitions, 98 flow. Second operand 3 states and 422 transitions. [2023-09-01 00:24:16,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 78 transitions, 335 flow [2023-09-01 00:24:16,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 78 transitions, 329 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:24:16,856 INFO L231 Difference]: Finished difference. Result has 49 places, 56 transitions, 198 flow [2023-09-01 00:24:16,856 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=49, PETRI_TRANSITIONS=56} [2023-09-01 00:24:16,857 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 0 predicate places. [2023-09-01 00:24:16,857 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 56 transitions, 198 flow [2023-09-01 00:24:16,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:16,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:16,858 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:16,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 00:24:16,858 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-09-01 00:24:16,859 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:16,859 INFO L85 PathProgramCache]: Analyzing trace with hash 203438565, now seen corresponding path program 1 times [2023-09-01 00:24:16,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:16,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446929019] [2023-09-01 00:24:16,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:16,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:16,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:16,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:16,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446929019] [2023-09-01 00:24:16,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446929019] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:16,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:16,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 00:24:16,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482787502] [2023-09-01 00:24:16,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:16,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 00:24:16,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:16,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 00:24:16,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 00:24:17,050 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 248 [2023-09-01 00:24:17,051 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 56 transitions, 198 flow. Second operand has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:17,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:17,051 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 248 [2023-09-01 00:24:17,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:17,196 INFO L130 PetriNetUnfolder]: 237/572 cut-off events. [2023-09-01 00:24:17,196 INFO L131 PetriNetUnfolder]: For 114/123 co-relation queries the response was YES. [2023-09-01 00:24:17,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1444 conditions, 572 events. 237/572 cut-off events. For 114/123 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2790 event pairs, 80 based on Foata normal form. 15/531 useless extension candidates. Maximal degree in co-relation 1438. Up to 301 conditions per place. [2023-09-01 00:24:17,199 INFO L137 encePairwiseOnDemand]: 239/248 looper letters, 66 selfloop transitions, 13 changer transitions 0/84 dead transitions. [2023-09-01 00:24:17,199 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 84 transitions, 426 flow [2023-09-01 00:24:17,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 00:24:17,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 00:24:17,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 558 transitions. [2023-09-01 00:24:17,203 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5625 [2023-09-01 00:24:17,204 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 558 transitions. [2023-09-01 00:24:17,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 558 transitions. [2023-09-01 00:24:17,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:17,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 558 transitions. [2023-09-01 00:24:17,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 139.5) internal successors, (558), 4 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:17,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:17,208 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:17,212 INFO L175 Difference]: Start difference. First operand has 49 places, 56 transitions, 198 flow. Second operand 4 states and 558 transitions. [2023-09-01 00:24:17,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 84 transitions, 426 flow [2023-09-01 00:24:17,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 84 transitions, 415 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 00:24:17,219 INFO L231 Difference]: Finished difference. Result has 52 places, 57 transitions, 236 flow [2023-09-01 00:24:17,219 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=236, PETRI_PLACES=52, PETRI_TRANSITIONS=57} [2023-09-01 00:24:17,221 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 3 predicate places. [2023-09-01 00:24:17,221 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 57 transitions, 236 flow [2023-09-01 00:24:17,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:17,221 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:17,221 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:17,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 00:24:17,222 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-09-01 00:24:17,223 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:17,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1045151887, now seen corresponding path program 1 times [2023-09-01 00:24:17,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:17,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379211944] [2023-09-01 00:24:17,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:17,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:17,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:17,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:17,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379211944] [2023-09-01 00:24:17,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379211944] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:17,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:17,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:24:17,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560569334] [2023-09-01 00:24:17,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:17,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:24:17,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:17,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:24:17,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:24:17,332 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 248 [2023-09-01 00:24:17,332 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 57 transitions, 236 flow. Second operand has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:17,332 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:17,333 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 248 [2023-09-01 00:24:17,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:17,453 INFO L130 PetriNetUnfolder]: 227/558 cut-off events. [2023-09-01 00:24:17,453 INFO L131 PetriNetUnfolder]: For 171/172 co-relation queries the response was YES. [2023-09-01 00:24:17,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1534 conditions, 558 events. 227/558 cut-off events. For 171/172 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2595 event pairs, 94 based on Foata normal form. 0/509 useless extension candidates. Maximal degree in co-relation 1527. Up to 271 conditions per place. [2023-09-01 00:24:17,457 INFO L137 encePairwiseOnDemand]: 245/248 looper letters, 66 selfloop transitions, 2 changer transitions 0/77 dead transitions. [2023-09-01 00:24:17,457 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 77 transitions, 443 flow [2023-09-01 00:24:17,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:24:17,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:24:17,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 436 transitions. [2023-09-01 00:24:17,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5860215053763441 [2023-09-01 00:24:17,459 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 436 transitions. [2023-09-01 00:24:17,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 436 transitions. [2023-09-01 00:24:17,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:17,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 436 transitions. [2023-09-01 00:24:17,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:17,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:17,462 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:17,462 INFO L175 Difference]: Start difference. First operand has 52 places, 57 transitions, 236 flow. Second operand 3 states and 436 transitions. [2023-09-01 00:24:17,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 77 transitions, 443 flow [2023-09-01 00:24:17,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 77 transitions, 442 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 00:24:17,466 INFO L231 Difference]: Finished difference. Result has 54 places, 57 transitions, 243 flow [2023-09-01 00:24:17,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=243, PETRI_PLACES=54, PETRI_TRANSITIONS=57} [2023-09-01 00:24:17,467 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 5 predicate places. [2023-09-01 00:24:17,468 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 57 transitions, 243 flow [2023-09-01 00:24:17,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:17,468 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:17,468 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:17,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 00:24:17,468 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-09-01 00:24:17,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:17,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1600067723, now seen corresponding path program 1 times [2023-09-01 00:24:17,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:17,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424677038] [2023-09-01 00:24:17,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:17,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:17,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:17,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:17,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424677038] [2023-09-01 00:24:17,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424677038] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:17,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:17,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 00:24:17,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733942536] [2023-09-01 00:24:17,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:17,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 00:24:17,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:17,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 00:24:17,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 00:24:17,624 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 248 [2023-09-01 00:24:17,625 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 57 transitions, 243 flow. Second operand has 4 states, 4 states have (on average 128.5) internal successors, (514), 4 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:17,625 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:17,625 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 248 [2023-09-01 00:24:17,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:17,738 INFO L130 PetriNetUnfolder]: 201/512 cut-off events. [2023-09-01 00:24:17,738 INFO L131 PetriNetUnfolder]: For 176/177 co-relation queries the response was YES. [2023-09-01 00:24:17,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1451 conditions, 512 events. 201/512 cut-off events. For 176/177 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2298 event pairs, 160 based on Foata normal form. 30/499 useless extension candidates. Maximal degree in co-relation 1443. Up to 404 conditions per place. [2023-09-01 00:24:17,741 INFO L137 encePairwiseOnDemand]: 242/248 looper letters, 53 selfloop transitions, 3 changer transitions 0/65 dead transitions. [2023-09-01 00:24:17,741 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 65 transitions, 401 flow [2023-09-01 00:24:17,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 00:24:17,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 00:24:17,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 548 transitions. [2023-09-01 00:24:17,743 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5524193548387096 [2023-09-01 00:24:17,743 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 548 transitions. [2023-09-01 00:24:17,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 548 transitions. [2023-09-01 00:24:17,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:17,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 548 transitions. [2023-09-01 00:24:17,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:17,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:17,747 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:17,748 INFO L175 Difference]: Start difference. First operand has 54 places, 57 transitions, 243 flow. Second operand 4 states and 548 transitions. [2023-09-01 00:24:17,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 65 transitions, 401 flow [2023-09-01 00:24:17,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 65 transitions, 397 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:24:17,750 INFO L231 Difference]: Finished difference. Result has 54 places, 55 transitions, 242 flow [2023-09-01 00:24:17,750 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=54, PETRI_TRANSITIONS=55} [2023-09-01 00:24:17,751 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 5 predicate places. [2023-09-01 00:24:17,751 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 55 transitions, 242 flow [2023-09-01 00:24:17,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 128.5) internal successors, (514), 4 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:17,751 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:17,751 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:17,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 00:24:17,752 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-09-01 00:24:17,752 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:17,752 INFO L85 PathProgramCache]: Analyzing trace with hash 730015939, now seen corresponding path program 1 times [2023-09-01 00:24:17,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:17,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036805271] [2023-09-01 00:24:17,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:17,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:17,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:17,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:17,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036805271] [2023-09-01 00:24:17,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036805271] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:17,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:17,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:24:17,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787448749] [2023-09-01 00:24:17,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:17,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:24:17,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:17,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:24:17,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:24:17,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 248 [2023-09-01 00:24:17,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 55 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:17,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:17,857 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 248 [2023-09-01 00:24:17,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:17,928 INFO L130 PetriNetUnfolder]: 182/467 cut-off events. [2023-09-01 00:24:17,928 INFO L131 PetriNetUnfolder]: For 163/164 co-relation queries the response was YES. [2023-09-01 00:24:17,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1313 conditions, 467 events. 182/467 cut-off events. For 163/164 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2030 event pairs, 159 based on Foata normal form. 0/444 useless extension candidates. Maximal degree in co-relation 1304. Up to 412 conditions per place. [2023-09-01 00:24:17,930 INFO L137 encePairwiseOnDemand]: 245/248 looper letters, 41 selfloop transitions, 2 changer transitions 0/52 dead transitions. [2023-09-01 00:24:17,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 52 transitions, 308 flow [2023-09-01 00:24:17,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:24:17,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:24:17,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 407 transitions. [2023-09-01 00:24:17,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5470430107526881 [2023-09-01 00:24:17,932 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 407 transitions. [2023-09-01 00:24:17,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 407 transitions. [2023-09-01 00:24:17,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:17,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 407 transitions. [2023-09-01 00:24:17,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:17,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:17,935 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:17,935 INFO L175 Difference]: Start difference. First operand has 54 places, 55 transitions, 242 flow. Second operand 3 states and 407 transitions. [2023-09-01 00:24:17,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 52 transitions, 308 flow [2023-09-01 00:24:17,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 52 transitions, 298 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-09-01 00:24:17,938 INFO L231 Difference]: Finished difference. Result has 51 places, 52 transitions, 216 flow [2023-09-01 00:24:17,938 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=51, PETRI_TRANSITIONS=52} [2023-09-01 00:24:17,939 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2023-09-01 00:24:17,939 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 52 transitions, 216 flow [2023-09-01 00:24:17,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:17,939 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:17,939 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:17,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 00:24:17,940 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-09-01 00:24:17,940 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:17,940 INFO L85 PathProgramCache]: Analyzing trace with hash 730015938, now seen corresponding path program 1 times [2023-09-01 00:24:17,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:17,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255848092] [2023-09-01 00:24:17,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:17,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:18,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:18,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:18,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255848092] [2023-09-01 00:24:18,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255848092] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:18,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:18,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:24:18,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104821856] [2023-09-01 00:24:18,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:18,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:24:18,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:18,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:24:18,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:24:18,041 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 248 [2023-09-01 00:24:18,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 52 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:18,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:18,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 248 [2023-09-01 00:24:18,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:18,100 INFO L130 PetriNetUnfolder]: 163/424 cut-off events. [2023-09-01 00:24:18,101 INFO L131 PetriNetUnfolder]: For 139/140 co-relation queries the response was YES. [2023-09-01 00:24:18,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 424 events. 163/424 cut-off events. For 139/140 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1782 event pairs, 145 based on Foata normal form. 0/421 useless extension candidates. Maximal degree in co-relation 1126. Up to 376 conditions per place. [2023-09-01 00:24:18,103 INFO L137 encePairwiseOnDemand]: 245/248 looper letters, 38 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2023-09-01 00:24:18,103 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 49 transitions, 276 flow [2023-09-01 00:24:18,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:24:18,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:24:18,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2023-09-01 00:24:18,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5336021505376344 [2023-09-01 00:24:18,105 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2023-09-01 00:24:18,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2023-09-01 00:24:18,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:18,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2023-09-01 00:24:18,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:18,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:18,108 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:18,108 INFO L175 Difference]: Start difference. First operand has 51 places, 52 transitions, 216 flow. Second operand 3 states and 397 transitions. [2023-09-01 00:24:18,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 49 transitions, 276 flow [2023-09-01 00:24:18,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 49 transitions, 272 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:24:18,110 INFO L231 Difference]: Finished difference. Result has 50 places, 49 transitions, 196 flow [2023-09-01 00:24:18,110 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=50, PETRI_TRANSITIONS=49} [2023-09-01 00:24:18,111 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 1 predicate places. [2023-09-01 00:24:18,111 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 49 transitions, 196 flow [2023-09-01 00:24:18,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:18,111 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:18,111 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:18,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-01 00:24:18,112 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-09-01 00:24:18,112 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:18,112 INFO L85 PathProgramCache]: Analyzing trace with hash 730281356, now seen corresponding path program 1 times [2023-09-01 00:24:18,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:18,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996258769] [2023-09-01 00:24:18,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:18,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:18,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:18,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:18,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996258769] [2023-09-01 00:24:18,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996258769] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:18,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:18,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 00:24:18,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951359677] [2023-09-01 00:24:18,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:18,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:24:18,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:18,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:24:18,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:24:18,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 248 [2023-09-01 00:24:18,207 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 49 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:18,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:18,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 248 [2023-09-01 00:24:18,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:18,302 INFO L130 PetriNetUnfolder]: 113/363 cut-off events. [2023-09-01 00:24:18,302 INFO L131 PetriNetUnfolder]: For 154/154 co-relation queries the response was YES. [2023-09-01 00:24:18,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1054 conditions, 363 events. 113/363 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1575 event pairs, 40 based on Foata normal form. 46/409 useless extension candidates. Maximal degree in co-relation 1046. Up to 201 conditions per place. [2023-09-01 00:24:18,304 INFO L137 encePairwiseOnDemand]: 228/248 looper letters, 49 selfloop transitions, 29 changer transitions 0/78 dead transitions. [2023-09-01 00:24:18,304 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 78 transitions, 479 flow [2023-09-01 00:24:18,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:24:18,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:24:18,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2023-09-01 00:24:18,306 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5309139784946236 [2023-09-01 00:24:18,306 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 395 transitions. [2023-09-01 00:24:18,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 395 transitions. [2023-09-01 00:24:18,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:18,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 395 transitions. [2023-09-01 00:24:18,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:18,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:18,309 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:18,309 INFO L175 Difference]: Start difference. First operand has 50 places, 49 transitions, 196 flow. Second operand 3 states and 395 transitions. [2023-09-01 00:24:18,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 78 transitions, 479 flow [2023-09-01 00:24:18,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 78 transitions, 475 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:24:18,311 INFO L231 Difference]: Finished difference. Result has 51 places, 65 transitions, 397 flow [2023-09-01 00:24:18,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=397, PETRI_PLACES=51, PETRI_TRANSITIONS=65} [2023-09-01 00:24:18,312 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2023-09-01 00:24:18,312 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 65 transitions, 397 flow [2023-09-01 00:24:18,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:18,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:18,313 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:18,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-01 00:24:18,313 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-09-01 00:24:18,314 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:18,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1163818032, now seen corresponding path program 1 times [2023-09-01 00:24:18,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:18,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599406930] [2023-09-01 00:24:18,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:18,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:18,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:18,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:18,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599406930] [2023-09-01 00:24:18,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599406930] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:18,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:18,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 00:24:18,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281003509] [2023-09-01 00:24:18,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:18,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 00:24:18,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:18,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 00:24:18,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-09-01 00:24:18,586 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 248 [2023-09-01 00:24:18,587 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 65 transitions, 397 flow. Second operand has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:18,587 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:18,587 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 248 [2023-09-01 00:24:18,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:18,666 INFO L130 PetriNetUnfolder]: 90/301 cut-off events. [2023-09-01 00:24:18,667 INFO L131 PetriNetUnfolder]: For 257/257 co-relation queries the response was YES. [2023-09-01 00:24:18,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1115 conditions, 301 events. 90/301 cut-off events. For 257/257 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1238 event pairs, 27 based on Foata normal form. 4/305 useless extension candidates. Maximal degree in co-relation 1106. Up to 261 conditions per place. [2023-09-01 00:24:18,669 INFO L137 encePairwiseOnDemand]: 243/248 looper letters, 58 selfloop transitions, 6 changer transitions 0/64 dead transitions. [2023-09-01 00:24:18,669 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 64 transitions, 492 flow [2023-09-01 00:24:18,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 00:24:18,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 00:24:18,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 494 transitions. [2023-09-01 00:24:18,671 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49798387096774194 [2023-09-01 00:24:18,671 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 494 transitions. [2023-09-01 00:24:18,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 494 transitions. [2023-09-01 00:24:18,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:18,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 494 transitions. [2023-09-01 00:24:18,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.5) internal successors, (494), 4 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:18,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:18,675 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:18,675 INFO L175 Difference]: Start difference. First operand has 51 places, 65 transitions, 397 flow. Second operand 4 states and 494 transitions. [2023-09-01 00:24:18,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 64 transitions, 492 flow [2023-09-01 00:24:18,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 64 transitions, 455 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-09-01 00:24:18,677 INFO L231 Difference]: Finished difference. Result has 51 places, 54 transitions, 292 flow [2023-09-01 00:24:18,678 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=292, PETRI_PLACES=51, PETRI_TRANSITIONS=54} [2023-09-01 00:24:18,678 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2023-09-01 00:24:18,678 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 54 transitions, 292 flow [2023-09-01 00:24:18,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:18,679 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:18,679 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:18,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-01 00:24:18,679 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-09-01 00:24:18,680 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:18,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1802471479, now seen corresponding path program 1 times [2023-09-01 00:24:18,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:18,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389065825] [2023-09-01 00:24:18,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:18,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:18,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:18,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:18,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389065825] [2023-09-01 00:24:18,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389065825] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:18,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:18,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 00:24:18,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742034620] [2023-09-01 00:24:18,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:18,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 00:24:18,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:18,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 00:24:18,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-09-01 00:24:19,029 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 248 [2023-09-01 00:24:19,030 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 54 transitions, 292 flow. Second operand has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:19,030 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:19,030 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 248 [2023-09-01 00:24:19,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:19,122 INFO L130 PetriNetUnfolder]: 38/189 cut-off events. [2023-09-01 00:24:19,123 INFO L131 PetriNetUnfolder]: For 207/207 co-relation queries the response was YES. [2023-09-01 00:24:19,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 666 conditions, 189 events. 38/189 cut-off events. For 207/207 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 643 event pairs, 8 based on Foata normal form. 14/203 useless extension candidates. Maximal degree in co-relation 658. Up to 121 conditions per place. [2023-09-01 00:24:19,124 INFO L137 encePairwiseOnDemand]: 243/248 looper letters, 49 selfloop transitions, 11 changer transitions 0/60 dead transitions. [2023-09-01 00:24:19,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 60 transitions, 440 flow [2023-09-01 00:24:19,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 00:24:19,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 00:24:19,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 495 transitions. [2023-09-01 00:24:19,126 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49899193548387094 [2023-09-01 00:24:19,127 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 495 transitions. [2023-09-01 00:24:19,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 495 transitions. [2023-09-01 00:24:19,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:19,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 495 transitions. [2023-09-01 00:24:19,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:19,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:19,130 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:19,131 INFO L175 Difference]: Start difference. First operand has 51 places, 54 transitions, 292 flow. Second operand 4 states and 495 transitions. [2023-09-01 00:24:19,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 60 transitions, 440 flow [2023-09-01 00:24:19,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 60 transitions, 412 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-09-01 00:24:19,133 INFO L231 Difference]: Finished difference. Result has 51 places, 51 transitions, 268 flow [2023-09-01 00:24:19,133 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=268, PETRI_PLACES=51, PETRI_TRANSITIONS=51} [2023-09-01 00:24:19,134 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2023-09-01 00:24:19,134 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 51 transitions, 268 flow [2023-09-01 00:24:19,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:19,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:19,135 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:19,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-09-01 00:24:19,135 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-09-01 00:24:19,136 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:19,136 INFO L85 PathProgramCache]: Analyzing trace with hash -605099031, now seen corresponding path program 1 times [2023-09-01 00:24:19,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:19,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459326025] [2023-09-01 00:24:19,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:19,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:19,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:19,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:19,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459326025] [2023-09-01 00:24:19,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459326025] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:19,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:19,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 00:24:19,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226868539] [2023-09-01 00:24:19,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:19,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 00:24:19,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:19,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 00:24:19,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 00:24:19,283 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 248 [2023-09-01 00:24:19,284 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 51 transitions, 268 flow. Second operand has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:19,284 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:19,284 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 248 [2023-09-01 00:24:19,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:19,357 INFO L130 PetriNetUnfolder]: 38/187 cut-off events. [2023-09-01 00:24:19,358 INFO L131 PetriNetUnfolder]: For 189/189 co-relation queries the response was YES. [2023-09-01 00:24:19,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 187 events. 38/187 cut-off events. For 189/189 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 610 event pairs, 19 based on Foata normal form. 2/189 useless extension candidates. Maximal degree in co-relation 626. Up to 133 conditions per place. [2023-09-01 00:24:19,359 INFO L137 encePairwiseOnDemand]: 244/248 looper letters, 49 selfloop transitions, 3 changer transitions 0/60 dead transitions. [2023-09-01 00:24:19,359 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 60 transitions, 423 flow [2023-09-01 00:24:19,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 00:24:19,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 00:24:19,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 544 transitions. [2023-09-01 00:24:19,361 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5483870967741935 [2023-09-01 00:24:19,361 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 544 transitions. [2023-09-01 00:24:19,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 544 transitions. [2023-09-01 00:24:19,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:19,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 544 transitions. [2023-09-01 00:24:19,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:19,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:19,365 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:19,365 INFO L175 Difference]: Start difference. First operand has 51 places, 51 transitions, 268 flow. Second operand 4 states and 544 transitions. [2023-09-01 00:24:19,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 60 transitions, 423 flow [2023-09-01 00:24:19,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 60 transitions, 410 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 00:24:19,367 INFO L231 Difference]: Finished difference. Result has 50 places, 50 transitions, 257 flow [2023-09-01 00:24:19,367 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=257, PETRI_PLACES=50, PETRI_TRANSITIONS=50} [2023-09-01 00:24:19,368 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 1 predicate places. [2023-09-01 00:24:19,368 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 50 transitions, 257 flow [2023-09-01 00:24:19,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:19,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:24:19,370 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:19,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-09-01 00:24:19,370 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 7 more)] === [2023-09-01 00:24:19,370 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:24:19,371 INFO L85 PathProgramCache]: Analyzing trace with hash -351743092, now seen corresponding path program 1 times [2023-09-01 00:24:19,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:24:19,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169647691] [2023-09-01 00:24:19,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:24:19,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:24:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:24:19,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:24:19,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:24:19,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169647691] [2023-09-01 00:24:19,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169647691] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:24:19,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:24:19,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 00:24:19,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272754374] [2023-09-01 00:24:19,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:24:19,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 00:24:19,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:24:19,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 00:24:19,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 00:24:19,556 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 248 [2023-09-01 00:24:19,557 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 50 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:19,557 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:24:19,557 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 248 [2023-09-01 00:24:19,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:24:19,597 INFO L130 PetriNetUnfolder]: 38/186 cut-off events. [2023-09-01 00:24:19,597 INFO L131 PetriNetUnfolder]: For 151/151 co-relation queries the response was YES. [2023-09-01 00:24:19,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 626 conditions, 186 events. 38/186 cut-off events. For 151/151 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 603 event pairs, 26 based on Foata normal form. 1/187 useless extension candidates. Maximal degree in co-relation 619. Up to 168 conditions per place. [2023-09-01 00:24:19,598 INFO L137 encePairwiseOnDemand]: 246/248 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2023-09-01 00:24:19,598 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 49 transitions, 337 flow [2023-09-01 00:24:19,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 00:24:19,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 00:24:19,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 406 transitions. [2023-09-01 00:24:19,600 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5456989247311828 [2023-09-01 00:24:19,600 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 406 transitions. [2023-09-01 00:24:19,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 406 transitions. [2023-09-01 00:24:19,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:24:19,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 406 transitions. [2023-09-01 00:24:19,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:19,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:19,603 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:19,603 INFO L175 Difference]: Start difference. First operand has 50 places, 50 transitions, 257 flow. Second operand 3 states and 406 transitions. [2023-09-01 00:24:19,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 49 transitions, 337 flow [2023-09-01 00:24:19,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 49 transitions, 331 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 00:24:19,605 INFO L231 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2023-09-01 00:24:19,605 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=48, PETRI_TRANSITIONS=0} [2023-09-01 00:24:19,605 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2023-09-01 00:24:19,605 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 0 transitions, 0 flow [2023-09-01 00:24:19,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 00:24:19,608 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 10 remaining) [2023-09-01 00:24:19,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 10 remaining) [2023-09-01 00:24:19,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (7 of 10 remaining) [2023-09-01 00:24:19,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (6 of 10 remaining) [2023-09-01 00:24:19,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (5 of 10 remaining) [2023-09-01 00:24:19,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (4 of 10 remaining) [2023-09-01 00:24:19,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 10 remaining) [2023-09-01 00:24:19,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 10 remaining) [2023-09-01 00:24:19,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (1 of 10 remaining) [2023-09-01 00:24:19,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 10 remaining) [2023-09-01 00:24:19,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-09-01 00:24:19,611 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 00:24:19,613 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 00:24:19,614 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 00:24:19,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 12:24:19 BasicIcfg [2023-09-01 00:24:19,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 00:24:19,617 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 00:24:19,617 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 00:24:19,617 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 00:24:19,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:24:11" (3/4) ... [2023-09-01 00:24:19,619 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 00:24:19,625 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-09-01 00:24:19,628 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-09-01 00:24:19,629 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-09-01 00:24:19,629 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-09-01 00:24:19,629 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 00:24:19,657 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 00:24:19,658 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 00:24:19,658 INFO L158 Benchmark]: Toolchain (without parser) took 8909.09ms. Allocated memory was 69.2MB in the beginning and 178.3MB in the end (delta: 109.1MB). Free memory was 45.1MB in the beginning and 77.6MB in the end (delta: -32.4MB). Peak memory consumption was 78.1MB. Max. memory is 16.1GB. [2023-09-01 00:24:19,658 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 69.2MB. Free memory is still 46.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:24:19,659 INFO L158 Benchmark]: CACSL2BoogieTranslator took 500.09ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 44.9MB in the beginning and 63.2MB in the end (delta: -18.3MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2023-09-01 00:24:19,659 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.64ms. Allocated memory is still 90.2MB. Free memory was 63.2MB in the beginning and 61.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 00:24:19,659 INFO L158 Benchmark]: Boogie Preprocessor took 50.29ms. Allocated memory is still 90.2MB. Free memory was 61.2MB in the beginning and 59.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:24:19,660 INFO L158 Benchmark]: RCFGBuilder took 548.47ms. Allocated memory is still 90.2MB. Free memory was 59.6MB in the beginning and 42.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-09-01 00:24:19,660 INFO L158 Benchmark]: TraceAbstraction took 7690.58ms. Allocated memory was 90.2MB in the beginning and 178.3MB in the end (delta: 88.1MB). Free memory was 41.9MB in the beginning and 80.7MB in the end (delta: -38.8MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. [2023-09-01 00:24:19,660 INFO L158 Benchmark]: Witness Printer took 41.16ms. Allocated memory is still 178.3MB. Free memory was 80.7MB in the beginning and 77.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 00:24:19,661 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 69.2MB. Free memory is still 46.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 500.09ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 44.9MB in the beginning and 63.2MB in the end (delta: -18.3MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.64ms. Allocated memory is still 90.2MB. Free memory was 63.2MB in the beginning and 61.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.29ms. Allocated memory is still 90.2MB. Free memory was 61.2MB in the beginning and 59.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 548.47ms. Allocated memory is still 90.2MB. Free memory was 59.6MB in the beginning and 42.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7690.58ms. Allocated memory was 90.2MB in the beginning and 178.3MB in the end (delta: 88.1MB). Free memory was 41.9MB in the beginning and 80.7MB in the end (delta: -38.8MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. * Witness Printer took 41.16ms. Allocated memory is still 178.3MB. Free memory was 80.7MB in the beginning and 77.6MB in the end (delta: 3.1MB). 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: 3.6s, 134 PlacesBefore, 49 PlacesAfterwards, 134 TransitionsBefore, 46 TransitionsAfterwards, 3630 CoEnabledTransitionPairs, 6 FixpointIterations, 44 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 109 TotalNumberOfCompositions, 11011 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3250, independent: 2848, independent conditional: 0, independent unconditional: 2848, dependent: 402, dependent conditional: 0, dependent unconditional: 402, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1775, independent: 1705, independent conditional: 0, independent unconditional: 1705, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3250, independent: 1143, independent conditional: 0, independent unconditional: 1143, dependent: 332, dependent conditional: 0, dependent unconditional: 332, unknown: 1775, unknown conditional: 0, unknown unconditional: 1775] , Statistics on independence cache: Total cache size (in pairs): 117, Positive cache size: 81, Positive conditional cache size: 0, Positive unconditional cache size: 81, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 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 - 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: 704]: 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, 171 locations, 10 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: 7.5s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 897 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 504 mSDsluCounter, 79 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 231 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1548 IncrementalHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 231 mSolverCounterUnsat, 58 mSDtfsCounter, 1548 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=397occurred in iteration=9, InterpolantAutomatonStates: 43, 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, 1.3s InterpolantComputationTime, 213 NumberOfCodeBlocks, 213 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 1247 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 00:24:19,679 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE