./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_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 b9cb80ce7b0c0db24d48a98e6e8d1fa81dc0ba8a1f2c5d148b0b0229d5ab18a1 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 04:00:40,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 04:00:40,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 04:00:40,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 04:00:40,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 04:00:40,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 04:00:40,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 04:00:40,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 04:00:40,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 04:00:40,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 04:00:40,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 04:00:40,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 04:00:40,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 04:00:40,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 04:00:40,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 04:00:41,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 04:00:41,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 04:00:41,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 04:00:41,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 04:00:41,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 04:00:41,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 04:00:41,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 04:00:41,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 04:00:41,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 04:00:41,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 04:00:41,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 04:00:41,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 04:00:41,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 04:00:41,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 04:00:41,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 04:00:41,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 04:00:41,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 04:00:41,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 04:00:41,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 04:00:41,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 04:00:41,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 04:00:41,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 04:00:41,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 04:00:41,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 04:00:41,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 04:00:41,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 04:00:41,037 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 04:00:41,064 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 04:00:41,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 04:00:41,066 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 04:00:41,066 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 04:00:41,066 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 04:00:41,067 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 04:00:41,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 04:00:41,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 04:00:41,067 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 04:00:41,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 04:00:41,068 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 04:00:41,068 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 04:00:41,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 04:00:41,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 04:00:41,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 04:00:41,069 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 04:00:41,069 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 04:00:41,069 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 04:00:41,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 04:00:41,069 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 04:00:41,070 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 04:00:41,070 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 04:00:41,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 04:00:41,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 04:00:41,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 04:00:41,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 04:00:41,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 04:00:41,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 04:00:41,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 04:00:41,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 04:00:41,071 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 04:00:41,071 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 04:00:41,071 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 04:00:41,072 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 04:00:41,072 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9cb80ce7b0c0db24d48a98e6e8d1fa81dc0ba8a1f2c5d148b0b0229d5ab18a1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 04:00:41,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 04:00:41,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 04:00:41,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 04:00:41,319 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 04:00:41,320 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 04:00:41,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2023-08-30 04:00:42,256 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 04:00:42,562 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 04:00:42,565 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2023-08-30 04:00:42,585 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1c5a4520/d7a03647848a48d19b412cfae36fabaf/FLAG0ee53aa7d [2023-08-30 04:00:42,847 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1c5a4520/d7a03647848a48d19b412cfae36fabaf [2023-08-30 04:00:42,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 04:00:42,850 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 04:00:42,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 04:00:42,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 04:00:42,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 04:00:42,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:00:42" (1/1) ... [2023-08-30 04:00:42,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cadfc74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:42, skipping insertion in model container [2023-08-30 04:00:42,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 04:00:42" (1/1) ... [2023-08-30 04:00:42,859 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 04:00:42,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 04:00:42,999 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_34-traces-minepp-L-needs-to-be-um_true.i[1107,1120] [2023-08-30 04:00:43,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 04:00:43,143 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 04:00:43,157 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_34-traces-minepp-L-needs-to-be-um_true.i[1107,1120] [2023-08-30 04:00:43,190 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 04:00:43,229 INFO L208 MainTranslator]: Completed translation [2023-08-30 04:00:43,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:43 WrapperNode [2023-08-30 04:00:43,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 04:00:43,242 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 04:00:43,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 04:00:43,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 04:00:43,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:43" (1/1) ... [2023-08-30 04:00:43,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:43" (1/1) ... [2023-08-30 04:00:43,301 INFO L138 Inliner]: procedures = 163, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2023-08-30 04:00:43,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 04:00:43,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 04:00:43,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 04:00:43,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 04:00:43,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:43" (1/1) ... [2023-08-30 04:00:43,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:43" (1/1) ... [2023-08-30 04:00:43,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:43" (1/1) ... [2023-08-30 04:00:43,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:43" (1/1) ... [2023-08-30 04:00:43,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:43" (1/1) ... [2023-08-30 04:00:43,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:43" (1/1) ... [2023-08-30 04:00:43,334 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:43" (1/1) ... [2023-08-30 04:00:43,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:43" (1/1) ... [2023-08-30 04:00:43,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 04:00:43,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 04:00:43,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 04:00:43,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 04:00:43,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:43" (1/1) ... [2023-08-30 04:00:43,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 04:00:43,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 04:00:43,363 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 04:00:43,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 04:00:43,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 04:00:43,386 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 04:00:43,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 04:00:43,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 04:00:43,387 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 04:00:43,387 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 04:00:43,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 04:00:43,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 04:00:43,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 04:00:43,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 04:00:43,388 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 04:00:43,465 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 04:00:43,466 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 04:00:43,648 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 04:00:43,653 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 04:00:43,655 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 04:00:43,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:00:43 BoogieIcfgContainer [2023-08-30 04:00:43,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 04:00:43,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 04:00:43,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 04:00:43,661 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 04:00:43,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 04:00:42" (1/3) ... [2023-08-30 04:00:43,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f987a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:00:43, skipping insertion in model container [2023-08-30 04:00:43,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 04:00:43" (2/3) ... [2023-08-30 04:00:43,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f987a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 04:00:43, skipping insertion in model container [2023-08-30 04:00:43,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:00:43" (3/3) ... [2023-08-30 04:00:43,663 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2023-08-30 04:00:43,674 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 04:00:43,674 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 04:00:43,674 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 04:00:43,749 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 04:00:43,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 91 transitions, 187 flow [2023-08-30 04:00:43,838 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2023-08-30 04:00:43,839 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:00:43,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2023-08-30 04:00:43,843 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 91 transitions, 187 flow [2023-08-30 04:00:43,847 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 86 transitions, 175 flow [2023-08-30 04:00:43,850 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 04:00:43,866 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 86 transitions, 175 flow [2023-08-30 04:00:43,871 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 86 transitions, 175 flow [2023-08-30 04:00:43,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 86 transitions, 175 flow [2023-08-30 04:00:43,909 INFO L130 PetriNetUnfolder]: 2/86 cut-off events. [2023-08-30 04:00:43,910 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:00:43,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 86 events. 2/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2023-08-30 04:00:43,911 INFO L119 LiptonReduction]: Number of co-enabled transitions 1020 [2023-08-30 04:00:46,627 INFO L134 LiptonReduction]: Checked pairs total: 2939 [2023-08-30 04:00:46,627 INFO L136 LiptonReduction]: Total number of compositions: 86 [2023-08-30 04:00:46,642 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 04:00:46,647 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;@79b8b461, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 04:00:46,648 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-30 04:00:46,650 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-30 04:00:46,650 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:00:46,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:46,651 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 04:00:46,652 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:00:46,655 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:46,656 INFO L85 PathProgramCache]: Analyzing trace with hash 324, now seen corresponding path program 1 times [2023-08-30 04:00:46,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:46,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34991273] [2023-08-30 04:00:46,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:46,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:46,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:46,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:46,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34991273] [2023-08-30 04:00:46,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34991273] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:46,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:46,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 04:00:46,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669925750] [2023-08-30 04:00:46,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:46,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 04:00:46,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:46,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 04:00:46,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 04:00:46,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 177 [2023-08-30 04:00:46,783 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 49 flow. Second operand has 2 states, 2 states have (on average 88.5) internal successors, (177), 2 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:46,783 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:46,783 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 177 [2023-08-30 04:00:46,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:46,835 INFO L130 PetriNetUnfolder]: 32/114 cut-off events. [2023-08-30 04:00:46,835 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:00:46,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 114 events. 32/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 420 event pairs, 30 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 183. Up to 74 conditions per place. [2023-08-30 04:00:46,838 INFO L137 encePairwiseOnDemand]: 175/177 looper letters, 13 selfloop transitions, 0 changer transitions 0/21 dead transitions. [2023-08-30 04:00:46,838 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 21 transitions, 71 flow [2023-08-30 04:00:46,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 04:00:46,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 04:00:46,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 191 transitions. [2023-08-30 04:00:46,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.53954802259887 [2023-08-30 04:00:46,849 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 191 transitions. [2023-08-30 04:00:46,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 191 transitions. [2023-08-30 04:00:46,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:46,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 191 transitions. [2023-08-30 04:00:46,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:46,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:46,861 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:46,863 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 49 flow. Second operand 2 states and 191 transitions. [2023-08-30 04:00:46,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 21 transitions, 71 flow [2023-08-30 04:00:46,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 21 transitions, 70 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 04:00:46,866 INFO L231 Difference]: Finished difference. Result has 24 places, 21 transitions, 44 flow [2023-08-30 04:00:46,867 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=24, PETRI_TRANSITIONS=21} [2023-08-30 04:00:46,870 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -2 predicate places. [2023-08-30 04:00:46,870 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 21 transitions, 44 flow [2023-08-30 04:00:46,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 88.5) internal successors, (177), 2 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:46,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:46,871 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:46,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 04:00:46,871 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:00:46,878 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:46,878 INFO L85 PathProgramCache]: Analyzing trace with hash -775855827, now seen corresponding path program 1 times [2023-08-30 04:00:46,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:46,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776032834] [2023-08-30 04:00:46,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:46,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:47,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:47,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:47,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776032834] [2023-08-30 04:00:47,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776032834] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:47,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:47,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 04:00:47,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521356254] [2023-08-30 04:00:47,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:47,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 04:00:47,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:47,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 04:00:47,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 04:00:47,097 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 177 [2023-08-30 04:00:47,097 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 21 transitions, 44 flow. Second operand has 4 states, 4 states have (on average 85.5) internal successors, (342), 4 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,097 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:47,097 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 177 [2023-08-30 04:00:47,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:47,152 INFO L130 PetriNetUnfolder]: 50/138 cut-off events. [2023-08-30 04:00:47,152 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 04:00:47,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 138 events. 50/138 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 462 event pairs, 22 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 253. Up to 57 conditions per place. [2023-08-30 04:00:47,153 INFO L137 encePairwiseOnDemand]: 171/177 looper letters, 24 selfloop transitions, 8 changer transitions 0/37 dead transitions. [2023-08-30 04:00:47,153 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 37 transitions, 140 flow [2023-08-30 04:00:47,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 04:00:47,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 04:00:47,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 454 transitions. [2023-08-30 04:00:47,160 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5129943502824859 [2023-08-30 04:00:47,160 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 454 transitions. [2023-08-30 04:00:47,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 454 transitions. [2023-08-30 04:00:47,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:47,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 454 transitions. [2023-08-30 04:00:47,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,163 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,163 INFO L175 Difference]: Start difference. First operand has 24 places, 21 transitions, 44 flow. Second operand 5 states and 454 transitions. [2023-08-30 04:00:47,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 37 transitions, 140 flow [2023-08-30 04:00:47,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 37 transitions, 140 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 04:00:47,164 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 96 flow [2023-08-30 04:00:47,164 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=96, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2023-08-30 04:00:47,165 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 6 predicate places. [2023-08-30 04:00:47,165 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 96 flow [2023-08-30 04:00:47,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.5) internal successors, (342), 4 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:47,165 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:47,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 04:00:47,166 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:00:47,166 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:47,166 INFO L85 PathProgramCache]: Analyzing trace with hash -775855805, now seen corresponding path program 1 times [2023-08-30 04:00:47,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:47,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263322280] [2023-08-30 04:00:47,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:47,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:47,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:47,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:47,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263322280] [2023-08-30 04:00:47,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263322280] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:47,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:47,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 04:00:47,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863101121] [2023-08-30 04:00:47,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:47,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 04:00:47,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:47,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 04:00:47,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 04:00:47,292 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 177 [2023-08-30 04:00:47,292 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,292 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:47,292 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 177 [2023-08-30 04:00:47,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:47,310 INFO L130 PetriNetUnfolder]: 25/97 cut-off events. [2023-08-30 04:00:47,310 INFO L131 PetriNetUnfolder]: For 50/52 co-relation queries the response was YES. [2023-08-30 04:00:47,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 97 events. 25/97 cut-off events. For 50/52 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 324 event pairs, 22 based on Foata normal form. 11/100 useless extension candidates. Maximal degree in co-relation 198. Up to 58 conditions per place. [2023-08-30 04:00:47,311 INFO L137 encePairwiseOnDemand]: 175/177 looper letters, 11 selfloop transitions, 1 changer transitions 2/23 dead transitions. [2023-08-30 04:00:47,311 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 23 transitions, 102 flow [2023-08-30 04:00:47,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 04:00:47,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 04:00:47,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2023-08-30 04:00:47,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4990583804143126 [2023-08-30 04:00:47,313 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 265 transitions. [2023-08-30 04:00:47,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 265 transitions. [2023-08-30 04:00:47,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:47,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 265 transitions. [2023-08-30 04:00:47,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,315 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,315 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 96 flow. Second operand 3 states and 265 transitions. [2023-08-30 04:00:47,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 23 transitions, 102 flow [2023-08-30 04:00:47,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 23 transitions, 99 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 04:00:47,317 INFO L231 Difference]: Finished difference. Result has 32 places, 21 transitions, 65 flow [2023-08-30 04:00:47,317 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=32, PETRI_TRANSITIONS=21} [2023-08-30 04:00:47,318 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 6 predicate places. [2023-08-30 04:00:47,318 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 21 transitions, 65 flow [2023-08-30 04:00:47,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:47,318 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:47,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 04:00:47,319 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:00:47,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:47,319 INFO L85 PathProgramCache]: Analyzing trace with hash -493593345, now seen corresponding path program 1 times [2023-08-30 04:00:47,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:47,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741978051] [2023-08-30 04:00:47,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:47,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:47,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:47,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:47,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741978051] [2023-08-30 04:00:47,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741978051] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:47,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:47,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 04:00:47,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195863321] [2023-08-30 04:00:47,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:47,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 04:00:47,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:47,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 04:00:47,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-30 04:00:47,584 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 177 [2023-08-30 04:00:47,584 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 21 transitions, 65 flow. Second operand has 6 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,584 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:47,584 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 177 [2023-08-30 04:00:47,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:47,620 INFO L130 PetriNetUnfolder]: 37/104 cut-off events. [2023-08-30 04:00:47,620 INFO L131 PetriNetUnfolder]: For 36/41 co-relation queries the response was YES. [2023-08-30 04:00:47,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 104 events. 37/104 cut-off events. For 36/41 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 290 event pairs, 12 based on Foata normal form. 7/105 useless extension candidates. Maximal degree in co-relation 230. Up to 55 conditions per place. [2023-08-30 04:00:47,621 INFO L137 encePairwiseOnDemand]: 172/177 looper letters, 17 selfloop transitions, 5 changer transitions 2/27 dead transitions. [2023-08-30 04:00:47,621 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 27 transitions, 127 flow [2023-08-30 04:00:47,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 04:00:47,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 04:00:47,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 333 transitions. [2023-08-30 04:00:47,623 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4703389830508475 [2023-08-30 04:00:47,623 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 333 transitions. [2023-08-30 04:00:47,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 333 transitions. [2023-08-30 04:00:47,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:47,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 333 transitions. [2023-08-30 04:00:47,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,625 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,625 INFO L175 Difference]: Start difference. First operand has 32 places, 21 transitions, 65 flow. Second operand 4 states and 333 transitions. [2023-08-30 04:00:47,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 27 transitions, 127 flow [2023-08-30 04:00:47,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 27 transitions, 119 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-30 04:00:47,627 INFO L231 Difference]: Finished difference. Result has 31 places, 20 transitions, 63 flow [2023-08-30 04:00:47,627 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=63, PETRI_PLACES=31, PETRI_TRANSITIONS=20} [2023-08-30 04:00:47,627 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2023-08-30 04:00:47,628 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 20 transitions, 63 flow [2023-08-30 04:00:47,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:47,628 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:47,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 04:00:47,628 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:00:47,629 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:47,629 INFO L85 PathProgramCache]: Analyzing trace with hash -13369133, now seen corresponding path program 2 times [2023-08-30 04:00:47,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:47,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20832932] [2023-08-30 04:00:47,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:47,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:47,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:47,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:47,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:47,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20832932] [2023-08-30 04:00:47,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20832932] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:47,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:47,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 04:00:47,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284155250] [2023-08-30 04:00:47,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:47,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 04:00:47,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:47,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 04:00:47,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-30 04:00:47,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 177 [2023-08-30 04:00:47,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 20 transitions, 63 flow. Second operand has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:47,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 177 [2023-08-30 04:00:47,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:47,853 INFO L130 PetriNetUnfolder]: 24/71 cut-off events. [2023-08-30 04:00:47,853 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-30 04:00:47,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 71 events. 24/71 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 159 event pairs, 8 based on Foata normal form. 7/78 useless extension candidates. Maximal degree in co-relation 164. Up to 39 conditions per place. [2023-08-30 04:00:47,854 INFO L137 encePairwiseOnDemand]: 170/177 looper letters, 7 selfloop transitions, 4 changer transitions 12/25 dead transitions. [2023-08-30 04:00:47,854 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 25 transitions, 121 flow [2023-08-30 04:00:47,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 04:00:47,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 04:00:47,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 325 transitions. [2023-08-30 04:00:47,855 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4590395480225989 [2023-08-30 04:00:47,855 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 325 transitions. [2023-08-30 04:00:47,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 325 transitions. [2023-08-30 04:00:47,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:47,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 325 transitions. [2023-08-30 04:00:47,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,858 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,858 INFO L175 Difference]: Start difference. First operand has 31 places, 20 transitions, 63 flow. Second operand 4 states and 325 transitions. [2023-08-30 04:00:47,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 25 transitions, 121 flow [2023-08-30 04:00:47,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 25 transitions, 109 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-30 04:00:47,859 INFO L231 Difference]: Finished difference. Result has 29 places, 12 transitions, 41 flow [2023-08-30 04:00:47,859 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=41, PETRI_PLACES=29, PETRI_TRANSITIONS=12} [2023-08-30 04:00:47,859 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2023-08-30 04:00:47,860 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 12 transitions, 41 flow [2023-08-30 04:00:47,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:47,860 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:47,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 04:00:47,861 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:00:47,861 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:47,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1087797327, now seen corresponding path program 1 times [2023-08-30 04:00:47,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:47,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966132869] [2023-08-30 04:00:47,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:47,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:47,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:47,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:47,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966132869] [2023-08-30 04:00:47,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966132869] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:47,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:47,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 04:00:47,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924609414] [2023-08-30 04:00:47,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:47,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 04:00:47,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:47,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 04:00:47,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 04:00:47,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 177 [2023-08-30 04:00:47,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 12 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:47,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 177 [2023-08-30 04:00:47,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:47,933 INFO L130 PetriNetUnfolder]: 0/17 cut-off events. [2023-08-30 04:00:47,933 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 04:00:47,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 17 events. 0/17 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 5/22 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2023-08-30 04:00:47,933 INFO L137 encePairwiseOnDemand]: 173/177 looper letters, 6 selfloop transitions, 4 changer transitions 0/12 dead transitions. [2023-08-30 04:00:47,933 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 12 transitions, 61 flow [2023-08-30 04:00:47,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 04:00:47,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 04:00:47,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 249 transitions. [2023-08-30 04:00:47,935 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4689265536723164 [2023-08-30 04:00:47,935 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 249 transitions. [2023-08-30 04:00:47,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 249 transitions. [2023-08-30 04:00:47,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:47,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 249 transitions. [2023-08-30 04:00:47,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,937 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 177.0) internal successors, (708), 4 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,937 INFO L175 Difference]: Start difference. First operand has 29 places, 12 transitions, 41 flow. Second operand 3 states and 249 transitions. [2023-08-30 04:00:47,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 12 transitions, 61 flow [2023-08-30 04:00:47,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 12 transitions, 55 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 04:00:47,938 INFO L231 Difference]: Finished difference. Result has 21 places, 12 transitions, 43 flow [2023-08-30 04:00:47,938 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=43, PETRI_PLACES=21, PETRI_TRANSITIONS=12} [2023-08-30 04:00:47,938 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -5 predicate places. [2023-08-30 04:00:47,938 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 12 transitions, 43 flow [2023-08-30 04:00:47,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:47,939 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 04:00:47,939 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 04:00:47,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 04:00:47,939 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-08-30 04:00:47,940 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 04:00:47,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1519235521, now seen corresponding path program 2 times [2023-08-30 04:00:47,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 04:00:47,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613659131] [2023-08-30 04:00:47,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 04:00:47,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 04:00:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 04:00:48,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 04:00:48,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 04:00:48,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613659131] [2023-08-30 04:00:48,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613659131] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 04:00:48,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 04:00:48,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 04:00:48,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349950118] [2023-08-30 04:00:48,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 04:00:48,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 04:00:48,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 04:00:48,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 04:00:48,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-30 04:00:48,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 177 [2023-08-30 04:00:48,113 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 12 transitions, 43 flow. Second operand has 6 states, 6 states have (on average 78.66666666666667) internal successors, (472), 6 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:48,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 04:00:48,114 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 177 [2023-08-30 04:00:48,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 04:00:48,127 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2023-08-30 04:00:48,127 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 04:00:48,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 12 events. 0/12 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 1/13 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2023-08-30 04:00:48,128 INFO L137 encePairwiseOnDemand]: 173/177 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2023-08-30 04:00:48,128 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 10 transitions, 55 flow [2023-08-30 04:00:48,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 04:00:48,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 04:00:48,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 318 transitions. [2023-08-30 04:00:48,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4491525423728814 [2023-08-30 04:00:48,129 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 318 transitions. [2023-08-30 04:00:48,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 318 transitions. [2023-08-30 04:00:48,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 04:00:48,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 318 transitions. [2023-08-30 04:00:48,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:48,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:48,131 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:48,131 INFO L175 Difference]: Start difference. First operand has 21 places, 12 transitions, 43 flow. Second operand 4 states and 318 transitions. [2023-08-30 04:00:48,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 10 transitions, 55 flow [2023-08-30 04:00:48,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 10 transitions, 49 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 04:00:48,132 INFO L231 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2023-08-30 04:00:48,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=20, PETRI_TRANSITIONS=0} [2023-08-30 04:00:48,133 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -6 predicate places. [2023-08-30 04:00:48,133 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 0 transitions, 0 flow [2023-08-30 04:00:48,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.66666666666667) internal successors, (472), 6 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 04:00:48,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 5 remaining) [2023-08-30 04:00:48,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2023-08-30 04:00:48,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (2 of 5 remaining) [2023-08-30 04:00:48,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2023-08-30 04:00:48,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-08-30 04:00:48,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 04:00:48,141 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2023-08-30 04:00:48,143 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 04:00:48,143 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 04:00:48,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 04:00:48 BasicIcfg [2023-08-30 04:00:48,145 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 04:00:48,146 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 04:00:48,146 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 04:00:48,146 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 04:00:48,146 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 04:00:43" (3/4) ... [2023-08-30 04:00:48,148 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 04:00:48,153 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 04:00:48,156 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-08-30 04:00:48,156 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 04:00:48,156 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 04:00:48,157 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 04:00:48,178 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 04:00:48,178 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 04:00:48,178 INFO L158 Benchmark]: Toolchain (without parser) took 5328.75ms. Allocated memory was 71.3MB in the beginning and 142.6MB in the end (delta: 71.3MB). Free memory was 47.2MB in the beginning and 114.4MB in the end (delta: -67.2MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2023-08-30 04:00:48,179 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 52.4MB. Free memory was 29.6MB in the beginning and 29.6MB in the end (delta: 78.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 04:00:48,179 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.19ms. Allocated memory is still 71.3MB. Free memory was 47.0MB in the beginning and 27.8MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-30 04:00:48,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.01ms. Allocated memory is still 71.3MB. Free memory was 50.8MB in the beginning and 49.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 04:00:48,179 INFO L158 Benchmark]: Boogie Preprocessor took 38.92ms. Allocated memory is still 71.3MB. Free memory was 49.0MB in the beginning and 47.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 04:00:48,180 INFO L158 Benchmark]: RCFGBuilder took 314.90ms. Allocated memory is still 71.3MB. Free memory was 47.4MB in the beginning and 33.3MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 04:00:48,180 INFO L158 Benchmark]: TraceAbstraction took 4487.23ms. Allocated memory was 71.3MB in the beginning and 142.6MB in the end (delta: 71.3MB). Free memory was 32.7MB in the beginning and 117.6MB in the end (delta: -84.9MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. [2023-08-30 04:00:48,180 INFO L158 Benchmark]: Witness Printer took 32.45ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 114.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 04:00:48,181 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 52.4MB. Free memory was 29.6MB in the beginning and 29.6MB in the end (delta: 78.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 379.19ms. Allocated memory is still 71.3MB. Free memory was 47.0MB in the beginning and 27.8MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.01ms. Allocated memory is still 71.3MB. Free memory was 50.8MB in the beginning and 49.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.92ms. Allocated memory is still 71.3MB. Free memory was 49.0MB in the beginning and 47.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 314.90ms. Allocated memory is still 71.3MB. Free memory was 47.4MB in the beginning and 33.3MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4487.23ms. Allocated memory was 71.3MB in the beginning and 142.6MB in the end (delta: 71.3MB). Free memory was 32.7MB in the beginning and 117.6MB in the end (delta: -84.9MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. * Witness Printer took 32.45ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 114.4MB 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: 2.8s, 88 PlacesBefore, 26 PlacesAfterwards, 86 TransitionsBefore, 23 TransitionsAfterwards, 1020 CoEnabledTransitionPairs, 6 FixpointIterations, 47 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 86 TotalNumberOfCompositions, 2939 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 973, independent: 795, independent conditional: 0, independent unconditional: 795, dependent: 178, dependent conditional: 0, dependent unconditional: 178, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 501, independent: 469, independent conditional: 0, independent unconditional: 469, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 973, independent: 326, independent conditional: 0, independent unconditional: 326, dependent: 146, dependent conditional: 0, dependent unconditional: 146, unknown: 501, unknown conditional: 0, unknown unconditional: 501] , Statistics on independence cache: Total cache size (in pairs): 28, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, 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: 699]: 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, 109 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 471 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 275 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 37 mSDsCounter, 119 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 775 IncrementalHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 119 mSolverCounterUnsat, 2 mSDtfsCounter, 775 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=2, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 292 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 04:00:48,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE