./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_17-ps_add1_nr.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/04-mutex_17-ps_add1_nr.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 013bb91f520a17a9cdc0cfee70ba812e0f5d104f38897431df1c1d9fa0ad9ebb --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 03:42:16,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:42:16,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:42:16,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:42:16,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:42:16,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:42:16,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:42:16,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:42:16,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:42:16,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:42:16,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:42:16,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:42:16,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:42:16,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:42:16,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:42:16,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:42:16,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:42:16,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:42:16,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:42:16,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:42:16,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:42:16,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:42:16,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:42:16,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:42:16,693 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:42:16,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:42:16,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:42:16,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:42:16,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:42:16,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:42:16,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:42:16,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:42:16,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:42:16,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:42:16,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:42:16,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:42:16,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:42:16,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:42:16,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:42:16,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:42:16,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:42:16,712 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:42:16,737 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:42:16,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:42:16,738 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:42:16,738 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:42:16,739 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:42:16,739 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:42:16,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:42:16,740 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:42:16,740 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:42:16,740 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:42:16,741 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:42:16,741 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:42:16,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:42:16,742 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:42:16,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:42:16,742 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:42:16,742 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:42:16,742 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:42:16,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:42:16,743 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:42:16,743 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:42:16,743 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:42:16,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:42:16,744 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:42:16,744 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:42:16,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:42:16,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:42:16,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:42:16,745 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:42:16,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:42:16,745 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:42:16,745 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:42:16,746 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:42:16,746 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:42:16,746 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 013bb91f520a17a9cdc0cfee70ba812e0f5d104f38897431df1c1d9fa0ad9ebb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:42:17,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:42:17,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:42:17,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:42:17,046 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:42:17,046 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:42:17,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_17-ps_add1_nr.i [2023-08-30 03:42:18,163 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:42:18,470 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:42:18,471 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_17-ps_add1_nr.i [2023-08-30 03:42:18,494 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6c3c918f/1a3b41a0cdef4c498bb4c80e9d410c3c/FLAG9b25b9307 [2023-08-30 03:42:18,512 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6c3c918f/1a3b41a0cdef4c498bb4c80e9d410c3c [2023-08-30 03:42:18,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:42:18,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:42:18,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:42:18,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:42:18,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:42:18,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:42:18" (1/1) ... [2023-08-30 03:42:18,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a15a032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:18, skipping insertion in model container [2023-08-30 03:42:18,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:42:18" (1/1) ... [2023-08-30 03:42:18,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:42:18,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:42:18,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:42:18,864 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:42:18,919 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:42:19,026 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:42:19,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:19 WrapperNode [2023-08-30 03:42:19,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:42:19,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:42:19,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:42:19,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:42:19,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:19" (1/1) ... [2023-08-30 03:42:19,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:19" (1/1) ... [2023-08-30 03:42:19,084 INFO L138 Inliner]: procedures = 266, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2023-08-30 03:42:19,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:42:19,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:42:19,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:42:19,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:42:19,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:19" (1/1) ... [2023-08-30 03:42:19,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:19" (1/1) ... [2023-08-30 03:42:19,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:19" (1/1) ... [2023-08-30 03:42:19,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:19" (1/1) ... [2023-08-30 03:42:19,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:19" (1/1) ... [2023-08-30 03:42:19,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:19" (1/1) ... [2023-08-30 03:42:19,116 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:19" (1/1) ... [2023-08-30 03:42:19,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:19" (1/1) ... [2023-08-30 03:42:19,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:42:19,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:42:19,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:42:19,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:42:19,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:19" (1/1) ... [2023-08-30 03:42:19,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:42:19,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:42:19,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 03:42:19,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 03:42:19,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:42:19,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:42:19,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:42:19,199 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 03:42:19,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:42:19,199 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 03:42:19,199 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 03:42:19,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 03:42:19,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:42:19,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:42:19,201 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 03:42:19,362 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:42:19,363 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:42:19,513 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:42:19,519 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:42:19,522 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:42:19,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:42:19 BoogieIcfgContainer [2023-08-30 03:42:19,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:42:19,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:42:19,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:42:19,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:42:19,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:42:18" (1/3) ... [2023-08-30 03:42:19,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef38889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:42:19, skipping insertion in model container [2023-08-30 03:42:19,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:42:19" (2/3) ... [2023-08-30 03:42:19,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef38889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:42:19, skipping insertion in model container [2023-08-30 03:42:19,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:42:19" (3/3) ... [2023-08-30 03:42:19,533 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_17-ps_add1_nr.i [2023-08-30 03:42:19,549 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:42:19,550 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-08-30 03:42:19,550 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:42:19,621 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 03:42:19,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 71 transitions, 147 flow [2023-08-30 03:42:19,712 INFO L130 PetriNetUnfolder]: 4/70 cut-off events. [2023-08-30 03:42:19,712 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:42:19,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 70 events. 4/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2023-08-30 03:42:19,717 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 71 transitions, 147 flow [2023-08-30 03:42:19,722 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 66 transitions, 135 flow [2023-08-30 03:42:19,726 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:42:19,745 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 66 transitions, 135 flow [2023-08-30 03:42:19,750 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 66 transitions, 135 flow [2023-08-30 03:42:19,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 66 transitions, 135 flow [2023-08-30 03:42:19,772 INFO L130 PetriNetUnfolder]: 4/66 cut-off events. [2023-08-30 03:42:19,778 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:42:19,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 66 events. 4/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2023-08-30 03:42:19,780 INFO L119 LiptonReduction]: Number of co-enabled transitions 576 [2023-08-30 03:42:21,827 INFO L134 LiptonReduction]: Checked pairs total: 866 [2023-08-30 03:42:21,828 INFO L136 LiptonReduction]: Total number of compositions: 75 [2023-08-30 03:42:21,840 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:42:21,846 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;@1bde33cf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:42:21,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-30 03:42:21,847 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 03:42:21,847 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:42:21,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:42:21,848 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:42:21,848 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2023-08-30 03:42:21,852 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:42:21,852 INFO L85 PathProgramCache]: Analyzing trace with hash 270, now seen corresponding path program 1 times [2023-08-30 03:42:21,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:42:21,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598956824] [2023-08-30 03:42:21,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:42:21,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:42:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:42:21,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:42:21,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:42:21,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598956824] [2023-08-30 03:42:21,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598956824] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:42:21,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:42:21,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:42:21,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503209780] [2023-08-30 03:42:21,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:42:21,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:42:21,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:42:21,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:42:21,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:42:21,977 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 146 [2023-08-30 03:42:21,979 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 14 transitions, 31 flow. Second operand has 2 states, 2 states have (on average 70.5) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:42:21,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:42:21,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 146 [2023-08-30 03:42:21,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:42:22,005 INFO L130 PetriNetUnfolder]: 26/52 cut-off events. [2023-08-30 03:42:22,005 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:42:22,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 52 events. 26/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 96 event pairs, 16 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 100. Up to 53 conditions per place. [2023-08-30 03:42:22,007 INFO L137 encePairwiseOnDemand]: 144/146 looper letters, 12 selfloop transitions, 0 changer transitions 0/12 dead transitions. [2023-08-30 03:42:22,007 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 12 transitions, 51 flow [2023-08-30 03:42:22,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:42:22,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:42:22,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 154 transitions. [2023-08-30 03:42:22,018 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5273972602739726 [2023-08-30 03:42:22,018 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 154 transitions. [2023-08-30 03:42:22,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 154 transitions. [2023-08-30 03:42:22,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:42:22,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 154 transitions. [2023-08-30 03:42:22,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:42:22,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:42:22,027 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:42:22,028 INFO L175 Difference]: Start difference. First operand has 16 places, 14 transitions, 31 flow. Second operand 2 states and 154 transitions. [2023-08-30 03:42:22,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 12 transitions, 51 flow [2023-08-30 03:42:22,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 12 transitions, 50 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 03:42:22,031 INFO L231 Difference]: Finished difference. Result has 14 places, 12 transitions, 26 flow [2023-08-30 03:42:22,033 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=26, PETRI_PLACES=14, PETRI_TRANSITIONS=12} [2023-08-30 03:42:22,036 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, -2 predicate places. [2023-08-30 03:42:22,036 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 12 transitions, 26 flow [2023-08-30 03:42:22,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 70.5) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:42:22,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:42:22,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 03:42:22,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:42:22,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2023-08-30 03:42:22,037 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:42:22,037 INFO L85 PathProgramCache]: Analyzing trace with hash 265836, now seen corresponding path program 1 times [2023-08-30 03:42:22,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:42:22,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789488254] [2023-08-30 03:42:22,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:42:22,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:42:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:42:22,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:42:22,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:42:22,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789488254] [2023-08-30 03:42:22,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789488254] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:42:22,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:42:22,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:42:22,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435435443] [2023-08-30 03:42:22,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:42:22,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:42:22,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:42:22,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:42:22,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:42:22,287 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 146 [2023-08-30 03:42:22,287 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 12 transitions, 26 flow. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:42:22,287 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:42:22,288 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 146 [2023-08-30 03:42:22,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:42:22,315 INFO L130 PetriNetUnfolder]: 12/33 cut-off events. [2023-08-30 03:42:22,316 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:42:22,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 33 events. 12/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 56 event pairs, 12 based on Foata normal form. 5/38 useless extension candidates. Maximal degree in co-relation 68. Up to 33 conditions per place. [2023-08-30 03:42:22,317 INFO L137 encePairwiseOnDemand]: 142/146 looper letters, 0 selfloop transitions, 0 changer transitions 9/9 dead transitions. [2023-08-30 03:42:22,317 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 9 transitions, 38 flow [2023-08-30 03:42:22,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:42:22,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:42:22,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 207 transitions. [2023-08-30 03:42:22,322 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4726027397260274 [2023-08-30 03:42:22,322 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 207 transitions. [2023-08-30 03:42:22,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 207 transitions. [2023-08-30 03:42:22,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:42:22,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 207 transitions. [2023-08-30 03:42:22,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:42:22,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:42:22,328 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:42:22,328 INFO L175 Difference]: Start difference. First operand has 14 places, 12 transitions, 26 flow. Second operand 3 states and 207 transitions. [2023-08-30 03:42:22,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 9 transitions, 38 flow [2023-08-30 03:42:22,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 9 transitions, 38 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:42:22,329 INFO L231 Difference]: Finished difference. Result has 15 places, 0 transitions, 0 flow [2023-08-30 03:42:22,329 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=20, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=15, PETRI_TRANSITIONS=0} [2023-08-30 03:42:22,330 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, -1 predicate places. [2023-08-30 03:42:22,330 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 0 transitions, 0 flow [2023-08-30 03:42:22,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:42:22,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 4 remaining) [2023-08-30 03:42:22,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 4 remaining) [2023-08-30 03:42:22,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 4 remaining) [2023-08-30 03:42:22,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-08-30 03:42:22,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:42:22,334 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 03:42:22,341 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:42:22,341 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:42:22,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:42:22 BasicIcfg [2023-08-30 03:42:22,349 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:42:22,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:42:22,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:42:22,350 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:42:22,351 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:42:19" (3/4) ... [2023-08-30 03:42:22,353 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 03:42:22,358 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 03:42:22,363 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-08-30 03:42:22,364 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 03:42:22,364 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 03:42:22,403 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 03:42:22,404 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:42:22,408 INFO L158 Benchmark]: Toolchain (without parser) took 3888.75ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 54.0MB in the beginning and 61.6MB in the end (delta: -7.6MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2023-08-30 03:42:22,409 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 40.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:42:22,409 INFO L158 Benchmark]: CACSL2BoogieTranslator took 507.17ms. Allocated memory is still 77.6MB. Free memory was 53.7MB in the beginning and 46.1MB in the end (delta: 7.6MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2023-08-30 03:42:22,409 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.01ms. Allocated memory is still 77.6MB. Free memory was 45.7MB in the beginning and 43.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:42:22,410 INFO L158 Benchmark]: Boogie Preprocessor took 41.77ms. Allocated memory is still 77.6MB. Free memory was 43.6MB in the beginning and 42.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:42:22,410 INFO L158 Benchmark]: RCFGBuilder took 397.80ms. Allocated memory is still 77.6MB. Free memory was 42.3MB in the beginning and 29.6MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 03:42:22,410 INFO L158 Benchmark]: TraceAbstraction took 2821.98ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 28.9MB in the beginning and 64.4MB in the end (delta: -35.5MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2023-08-30 03:42:22,410 INFO L158 Benchmark]: Witness Printer took 54.41ms. Allocated memory is still 94.4MB. Free memory was 64.4MB in the beginning and 61.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:42:22,412 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 40.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 507.17ms. Allocated memory is still 77.6MB. Free memory was 53.7MB in the beginning and 46.1MB in the end (delta: 7.6MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.01ms. Allocated memory is still 77.6MB. Free memory was 45.7MB in the beginning and 43.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.77ms. Allocated memory is still 77.6MB. Free memory was 43.6MB in the beginning and 42.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 397.80ms. Allocated memory is still 77.6MB. Free memory was 42.3MB in the beginning and 29.6MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2821.98ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 28.9MB in the beginning and 64.4MB in the end (delta: -35.5MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * Witness Printer took 54.41ms. Allocated memory is still 94.4MB. Free memory was 64.4MB in the beginning and 61.6MB in the end (delta: 2.8MB). 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: 2.1s, 66 PlacesBefore, 16 PlacesAfterwards, 66 TransitionsBefore, 14 TransitionsAfterwards, 576 CoEnabledTransitionPairs, 5 FixpointIterations, 31 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 17 ConcurrentYvCompositions, 2 ChoiceCompositions, 75 TotalNumberOfCompositions, 866 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 564, independent: 514, independent conditional: 0, independent unconditional: 514, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 353, independent: 335, independent conditional: 0, independent unconditional: 335, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 564, independent: 179, independent conditional: 0, independent unconditional: 179, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 353, unknown conditional: 0, unknown unconditional: 353] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, 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: 936]: 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, 79 locations, 4 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: 2.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 45 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 15 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 03:42:22,440 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