./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/ldv-races/race-1_3-join.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/ldv-races/race-1_3-join.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 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 --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 03:21:06,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:21:06,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:21:06,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:21:06,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:21:06,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:21:06,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:21:06,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:21:06,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:21:06,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:21:06,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:21:06,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:21:06,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:21:06,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:21:06,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:21:06,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:21:06,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:21:06,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:21:06,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:21:06,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:21:06,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:21:06,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:21:06,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:21:06,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:21:06,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:21:06,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:21:06,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:21:06,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:21:06,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:21:06,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:21:06,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:21:06,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:21:06,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:21:06,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:21:06,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:21:06,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:21:06,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:21:06,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:21:06,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:21:06,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:21:06,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:21:06,487 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:21:06,510 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:21:06,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:21:06,512 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:21:06,512 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:21:06,512 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:21:06,513 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:21:06,513 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:21:06,513 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:21:06,513 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:21:06,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:21:06,514 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:21:06,514 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:21:06,514 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:21:06,514 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:21:06,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:21:06,515 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:21:06,515 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:21:06,515 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:21:06,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:21:06,515 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:21:06,516 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:21:06,516 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:21:06,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:21:06,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:21:06,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:21:06,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:21:06,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:21:06,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:21:06,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:21:06,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:21:06,517 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:21:06,517 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:21:06,518 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:21:06,518 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:21:06,518 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:21:06,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:21:06,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:21:06,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:21:06,763 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:21:06,764 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:21:06,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i [2023-08-30 03:21:07,746 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:21:08,023 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:21:08,023 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i [2023-08-30 03:21:08,043 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2ca8ec40/55270092576548f7a8b7bd8d02504d2e/FLAG8927e8e53 [2023-08-30 03:21:08,054 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2ca8ec40/55270092576548f7a8b7bd8d02504d2e [2023-08-30 03:21:08,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:21:08,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:21:08,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:21:08,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:21:08,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:21:08,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:21:08" (1/1) ... [2023-08-30 03:21:08,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f13cd02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:08, skipping insertion in model container [2023-08-30 03:21:08,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:21:08" (1/1) ... [2023-08-30 03:21:08,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:21:08,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:21:08,726 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2023-08-30 03:21:08,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:21:08,753 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:21:08,783 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2023-08-30 03:21:08,793 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:21:08,863 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:21:08,864 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:21:08,868 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:21:08,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:08 WrapperNode [2023-08-30 03:21:08,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:21:08,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:21:08,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:21:08,870 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:21:08,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:08" (1/1) ... [2023-08-30 03:21:08,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:08" (1/1) ... [2023-08-30 03:21:08,919 INFO L138 Inliner]: procedures = 482, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90 [2023-08-30 03:21:08,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:21:08,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:21:08,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:21:08,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:21:08,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:08" (1/1) ... [2023-08-30 03:21:08,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:08" (1/1) ... [2023-08-30 03:21:08,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:08" (1/1) ... [2023-08-30 03:21:08,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:08" (1/1) ... [2023-08-30 03:21:08,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:08" (1/1) ... [2023-08-30 03:21:08,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:08" (1/1) ... [2023-08-30 03:21:08,945 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:08" (1/1) ... [2023-08-30 03:21:08,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:08" (1/1) ... [2023-08-30 03:21:08,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:21:08,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:21:08,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:21:08,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:21:08,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:08" (1/1) ... [2023-08-30 03:21:08,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:21:08,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:21:08,992 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 03:21:09,007 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 03:21:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 03:21:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:21:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 03:21:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 03:21:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 03:21:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:21:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 03:21:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:21:09,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:21:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:21:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-30 03:21:09,022 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-30 03:21:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:21:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 03:21:09,023 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 03:21:09,307 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:21:09,308 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:21:09,513 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:21:09,533 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:21:09,533 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:21:09,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:21:09 BoogieIcfgContainer [2023-08-30 03:21:09,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:21:09,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:21:09,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:21:09,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:21:09,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:21:08" (1/3) ... [2023-08-30 03:21:09,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@412869b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:21:09, skipping insertion in model container [2023-08-30 03:21:09,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:08" (2/3) ... [2023-08-30 03:21:09,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@412869b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:21:09, skipping insertion in model container [2023-08-30 03:21:09,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:21:09" (3/3) ... [2023-08-30 03:21:09,545 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2023-08-30 03:21:09,560 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:21:09,561 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-08-30 03:21:09,561 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:21:09,610 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 03:21:09,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 105 transitions, 218 flow [2023-08-30 03:21:09,690 INFO L130 PetriNetUnfolder]: 4/124 cut-off events. [2023-08-30 03:21:09,690 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:21:09,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 124 events. 4/124 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 237 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 74. Up to 3 conditions per place. [2023-08-30 03:21:09,706 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 105 transitions, 218 flow [2023-08-30 03:21:09,708 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 100 transitions, 206 flow [2023-08-30 03:21:09,710 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:21:09,717 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 100 transitions, 206 flow [2023-08-30 03:21:09,721 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 100 transitions, 206 flow [2023-08-30 03:21:09,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 100 transitions, 206 flow [2023-08-30 03:21:09,763 INFO L130 PetriNetUnfolder]: 4/116 cut-off events. [2023-08-30 03:21:09,763 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:21:09,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 116 events. 4/116 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 186 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 70. Up to 3 conditions per place. [2023-08-30 03:21:09,764 INFO L119 LiptonReduction]: Number of co-enabled transitions 266 [2023-08-30 03:21:13,321 INFO L134 LiptonReduction]: Checked pairs total: 398 [2023-08-30 03:21:13,321 INFO L136 LiptonReduction]: Total number of compositions: 118 [2023-08-30 03:21:13,338 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:21:13,343 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;@5f2fd969, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:21:13,344 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-08-30 03:21:13,345 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 03:21:13,345 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:21:13,346 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:21:13,346 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:21:13,347 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-30 03:21:13,350 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:21:13,350 INFO L85 PathProgramCache]: Analyzing trace with hash 414, now seen corresponding path program 1 times [2023-08-30 03:21:13,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:21:13,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101696784] [2023-08-30 03:21:13,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:21:13,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:21:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:21:13,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:21:13,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:21:13,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101696784] [2023-08-30 03:21:13,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101696784] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:21:13,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:21:13,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:21:13,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054994949] [2023-08-30 03:21:13,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:21:13,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:21:13,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:21:13,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:21:13,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:21:13,503 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 223 [2023-08-30 03:21:13,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 20 transitions, 46 flow. Second operand has 2 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 03:21:13,505 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:21:13,505 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 223 [2023-08-30 03:21:13,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:21:13,533 INFO L130 PetriNetUnfolder]: 8/35 cut-off events. [2023-08-30 03:21:13,533 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:21:13,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 35 events. 8/35 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 88 event pairs, 7 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 44. Up to 34 conditions per place. [2023-08-30 03:21:13,535 INFO L137 encePairwiseOnDemand]: 218/223 looper letters, 13 selfloop transitions, 0 changer transitions 0/15 dead transitions. [2023-08-30 03:21:13,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 15 transitions, 62 flow [2023-08-30 03:21:13,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:21:13,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:21:13,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 208 transitions. [2023-08-30 03:21:13,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4663677130044843 [2023-08-30 03:21:13,544 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 208 transitions. [2023-08-30 03:21:13,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 208 transitions. [2023-08-30 03:21:13,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:21:13,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 208 transitions. [2023-08-30 03:21:13,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 104.0) internal successors, (208), 2 states have internal predecessors, (208), 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 03:21:13,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 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 03:21:13,552 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 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 03:21:13,553 INFO L175 Difference]: Start difference. First operand has 22 places, 20 transitions, 46 flow. Second operand 2 states and 208 transitions. [2023-08-30 03:21:13,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 15 transitions, 62 flow [2023-08-30 03:21:13,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 15 transitions, 58 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:21:13,555 INFO L231 Difference]: Finished difference. Result has 16 places, 15 transitions, 32 flow [2023-08-30 03:21:13,557 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=32, PETRI_PLACES=16, PETRI_TRANSITIONS=15} [2023-08-30 03:21:13,559 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -6 predicate places. [2023-08-30 03:21:13,559 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 15 transitions, 32 flow [2023-08-30 03:21:13,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 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 03:21:13,559 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:21:13,559 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-30 03:21:13,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:21:13,560 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-30 03:21:13,560 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:21:13,561 INFO L85 PathProgramCache]: Analyzing trace with hash 13090, now seen corresponding path program 1 times [2023-08-30 03:21:13,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:21:13,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087262681] [2023-08-30 03:21:13,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:21:13,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:21:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:21:13,672 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 03:21:13,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:21:13,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087262681] [2023-08-30 03:21:13,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087262681] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:21:13,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:21:13,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:21:13,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775696306] [2023-08-30 03:21:13,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:21:13,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:21:13,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:21:13,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:21:13,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:21:13,700 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 223 [2023-08-30 03:21:13,701 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 15 transitions, 32 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:21:13,701 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:21:13,701 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 223 [2023-08-30 03:21:13,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:21:13,722 INFO L130 PetriNetUnfolder]: 6/31 cut-off events. [2023-08-30 03:21:13,722 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:21:13,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 31 events. 6/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 74 event pairs, 1 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 61. Up to 23 conditions per place. [2023-08-30 03:21:13,723 INFO L137 encePairwiseOnDemand]: 219/223 looper letters, 10 selfloop transitions, 3 changer transitions 0/15 dead transitions. [2023-08-30 03:21:13,723 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 15 transitions, 58 flow [2023-08-30 03:21:13,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:21:13,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:21:13,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 281 transitions. [2023-08-30 03:21:13,728 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4200298953662182 [2023-08-30 03:21:13,728 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 281 transitions. [2023-08-30 03:21:13,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 281 transitions. [2023-08-30 03:21:13,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:21:13,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 281 transitions. [2023-08-30 03:21:13,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 03:21:13,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 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 03:21:13,733 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 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 03:21:13,733 INFO L175 Difference]: Start difference. First operand has 16 places, 15 transitions, 32 flow. Second operand 3 states and 281 transitions. [2023-08-30 03:21:13,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 15 transitions, 58 flow [2023-08-30 03:21:13,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 15 transitions, 58 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:21:13,734 INFO L231 Difference]: Finished difference. Result has 18 places, 14 transitions, 36 flow [2023-08-30 03:21:13,734 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=18, PETRI_TRANSITIONS=14} [2023-08-30 03:21:13,735 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -4 predicate places. [2023-08-30 03:21:13,735 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 14 transitions, 36 flow [2023-08-30 03:21:13,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:21:13,735 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:21:13,735 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 03:21:13,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:21:13,736 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-30 03:21:13,736 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:21:13,736 INFO L85 PathProgramCache]: Analyzing trace with hash 406197, now seen corresponding path program 1 times [2023-08-30 03:21:13,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:21:13,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083569661] [2023-08-30 03:21:13,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:21:13,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:21:13,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:21:13,807 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 03:21:13,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:21:13,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083569661] [2023-08-30 03:21:13,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083569661] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:21:13,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:21:13,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:21:13,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569621848] [2023-08-30 03:21:13,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:21:13,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:21:13,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:21:13,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:21:13,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:21:13,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 223 [2023-08-30 03:21:13,816 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 14 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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 03:21:13,816 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:21:13,816 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 223 [2023-08-30 03:21:13,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:21:13,842 INFO L130 PetriNetUnfolder]: 6/26 cut-off events. [2023-08-30 03:21:13,843 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:21:13,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 26 events. 6/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 44 event pairs, 6 based on Foata normal form. 1/19 useless extension candidates. Maximal degree in co-relation 55. Up to 24 conditions per place. [2023-08-30 03:21:13,844 INFO L137 encePairwiseOnDemand]: 221/223 looper letters, 11 selfloop transitions, 0 changer transitions 1/14 dead transitions. [2023-08-30 03:21:13,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 14 transitions, 60 flow [2023-08-30 03:21:13,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:21:13,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:21:13,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2023-08-30 03:21:13,846 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42301943198804187 [2023-08-30 03:21:13,846 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 283 transitions. [2023-08-30 03:21:13,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 283 transitions. [2023-08-30 03:21:13,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:21:13,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 283 transitions. [2023-08-30 03:21:13,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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 03:21:13,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 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 03:21:13,849 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 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 03:21:13,849 INFO L175 Difference]: Start difference. First operand has 18 places, 14 transitions, 36 flow. Second operand 3 states and 283 transitions. [2023-08-30 03:21:13,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 14 transitions, 60 flow [2023-08-30 03:21:13,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 14 transitions, 54 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:21:13,850 INFO L231 Difference]: Finished difference. Result has 19 places, 13 transitions, 30 flow [2023-08-30 03:21:13,850 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=30, PETRI_PLACES=19, PETRI_TRANSITIONS=13} [2023-08-30 03:21:13,851 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -3 predicate places. [2023-08-30 03:21:13,851 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 13 transitions, 30 flow [2023-08-30 03:21:13,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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 03:21:13,852 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:21:13,852 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 03:21:13,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 03:21:13,852 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-30 03:21:13,852 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:21:13,852 INFO L85 PathProgramCache]: Analyzing trace with hash 386935773, now seen corresponding path program 1 times [2023-08-30 03:21:13,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:21:13,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866692646] [2023-08-30 03:21:13,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:21:13,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:21:13,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:21:13,953 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 03:21:13,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:21:13,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866692646] [2023-08-30 03:21:13,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866692646] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:21:13,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:21:13,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:21:13,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138592832] [2023-08-30 03:21:13,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:21:13,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:21:13,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:21:13,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:21:13,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:21:13,967 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 223 [2023-08-30 03:21:13,968 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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 03:21:13,968 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:21:13,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 223 [2023-08-30 03:21:13,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:21:13,990 INFO L130 PetriNetUnfolder]: 5/30 cut-off events. [2023-08-30 03:21:13,992 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:21:13,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 30 events. 5/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 69 event pairs, 1 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 59. Up to 15 conditions per place. [2023-08-30 03:21:13,993 INFO L137 encePairwiseOnDemand]: 216/223 looper letters, 11 selfloop transitions, 6 changer transitions 0/19 dead transitions. [2023-08-30 03:21:13,993 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 19 transitions, 77 flow [2023-08-30 03:21:13,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:21:13,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:21:13,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 285 transitions. [2023-08-30 03:21:13,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4260089686098655 [2023-08-30 03:21:13,995 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 285 transitions. [2023-08-30 03:21:13,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 285 transitions. [2023-08-30 03:21:13,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:21:13,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 285 transitions. [2023-08-30 03:21:13,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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 03:21:13,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 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 03:21:14,000 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 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 03:21:14,000 INFO L175 Difference]: Start difference. First operand has 19 places, 13 transitions, 30 flow. Second operand 3 states and 285 transitions. [2023-08-30 03:21:14,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 19 transitions, 77 flow [2023-08-30 03:21:14,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 19 transitions, 75 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 03:21:14,001 INFO L231 Difference]: Finished difference. Result has 21 places, 18 transitions, 74 flow [2023-08-30 03:21:14,001 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=21, PETRI_TRANSITIONS=18} [2023-08-30 03:21:14,002 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -1 predicate places. [2023-08-30 03:21:14,002 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 18 transitions, 74 flow [2023-08-30 03:21:14,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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 03:21:14,003 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:21:14,003 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 03:21:14,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 03:21:14,003 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-30 03:21:14,003 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:21:14,004 INFO L85 PathProgramCache]: Analyzing trace with hash 386935883, now seen corresponding path program 1 times [2023-08-30 03:21:14,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:21:14,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175654267] [2023-08-30 03:21:14,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:21:14,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:21:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:21:14,132 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 03:21:14,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:21:14,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175654267] [2023-08-30 03:21:14,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175654267] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:21:14,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:21:14,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:21:14,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316611662] [2023-08-30 03:21:14,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:21:14,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:21:14,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:21:14,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:21:14,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:21:14,175 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 223 [2023-08-30 03:21:14,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 18 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 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 03:21:14,175 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:21:14,175 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 223 [2023-08-30 03:21:14,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:21:14,200 INFO L130 PetriNetUnfolder]: 4/26 cut-off events. [2023-08-30 03:21:14,200 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-30 03:21:14,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 26 events. 4/26 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 50 event pairs, 1 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 73. Up to 20 conditions per place. [2023-08-30 03:21:14,201 INFO L137 encePairwiseOnDemand]: 220/223 looper letters, 11 selfloop transitions, 3 changer transitions 0/16 dead transitions. [2023-08-30 03:21:14,201 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 16 transitions, 92 flow [2023-08-30 03:21:14,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:21:14,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:21:14,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2023-08-30 03:21:14,202 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4155455904334828 [2023-08-30 03:21:14,202 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 278 transitions. [2023-08-30 03:21:14,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 278 transitions. [2023-08-30 03:21:14,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:21:14,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 278 transitions. [2023-08-30 03:21:14,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 03:21:14,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 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 03:21:14,205 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 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 03:21:14,205 INFO L175 Difference]: Start difference. First operand has 21 places, 18 transitions, 74 flow. Second operand 3 states and 278 transitions. [2023-08-30 03:21:14,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 16 transitions, 92 flow [2023-08-30 03:21:14,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 16 transitions, 82 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:21:14,206 INFO L231 Difference]: Finished difference. Result has 20 places, 16 transitions, 60 flow [2023-08-30 03:21:14,206 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=20, PETRI_TRANSITIONS=16} [2023-08-30 03:21:14,208 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -2 predicate places. [2023-08-30 03:21:14,208 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 16 transitions, 60 flow [2023-08-30 03:21:14,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 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 03:21:14,208 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:21:14,209 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 03:21:14,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 03:21:14,209 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-30 03:21:14,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:21:14,209 INFO L85 PathProgramCache]: Analyzing trace with hash -889887168, now seen corresponding path program 1 times [2023-08-30 03:21:14,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:21:14,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345065595] [2023-08-30 03:21:14,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:21:14,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:21:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:21:14,306 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 03:21:14,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:21:14,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345065595] [2023-08-30 03:21:14,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345065595] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:21:14,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:21:14,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:21:14,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841049631] [2023-08-30 03:21:14,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:21:14,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:21:14,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:21:14,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:21:14,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:21:14,356 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 223 [2023-08-30 03:21:14,356 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 16 transitions, 60 flow. Second operand has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:21:14,356 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:21:14,356 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 223 [2023-08-30 03:21:14,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:21:14,370 INFO L130 PetriNetUnfolder]: 3/22 cut-off events. [2023-08-30 03:21:14,370 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-30 03:21:14,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 22 events. 3/22 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 32 event pairs, 1 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 56. Up to 16 conditions per place. [2023-08-30 03:21:14,371 INFO L137 encePairwiseOnDemand]: 220/223 looper letters, 9 selfloop transitions, 3 changer transitions 0/14 dead transitions. [2023-08-30 03:21:14,371 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 14 transitions, 76 flow [2023-08-30 03:21:14,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:21:14,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:21:14,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 354 transitions. [2023-08-30 03:21:14,372 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3968609865470852 [2023-08-30 03:21:14,372 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 354 transitions. [2023-08-30 03:21:14,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 354 transitions. [2023-08-30 03:21:14,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:21:14,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 354 transitions. [2023-08-30 03:21:14,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 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 03:21:14,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 223.0) internal successors, (1115), 5 states have internal predecessors, (1115), 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 03:21:14,375 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 223.0) internal successors, (1115), 5 states have internal predecessors, (1115), 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 03:21:14,375 INFO L175 Difference]: Start difference. First operand has 20 places, 16 transitions, 60 flow. Second operand 4 states and 354 transitions. [2023-08-30 03:21:14,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 14 transitions, 76 flow [2023-08-30 03:21:14,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 14 transitions, 70 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:21:14,376 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 52 flow [2023-08-30 03:21:14,376 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=52, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2023-08-30 03:21:14,376 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -2 predicate places. [2023-08-30 03:21:14,377 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 52 flow [2023-08-30 03:21:14,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:21:14,377 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:21:14,377 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 03:21:14,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 03:21:14,377 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-30 03:21:14,378 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:21:14,378 INFO L85 PathProgramCache]: Analyzing trace with hash -889887279, now seen corresponding path program 1 times [2023-08-30 03:21:14,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:21:14,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865499416] [2023-08-30 03:21:14,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:21:14,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:21:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:21:14,395 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 03:21:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:21:14,415 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 03:21:14,415 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 03:21:14,416 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (11 of 12 remaining) [2023-08-30 03:21:14,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (10 of 12 remaining) [2023-08-30 03:21:14,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2023-08-30 03:21:14,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 12 remaining) [2023-08-30 03:21:14,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (7 of 12 remaining) [2023-08-30 03:21:14,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (6 of 12 remaining) [2023-08-30 03:21:14,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 12 remaining) [2023-08-30 03:21:14,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 12 remaining) [2023-08-30 03:21:14,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 12 remaining) [2023-08-30 03:21:14,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 12 remaining) [2023-08-30 03:21:14,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (1 of 12 remaining) [2023-08-30 03:21:14,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-08-30 03:21:14,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 03:21:14,420 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-08-30 03:21:14,423 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:21:14,423 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:21:14,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:21:14 BasicIcfg [2023-08-30 03:21:14,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:21:14,436 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:21:14,436 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:21:14,436 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:21:14,437 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:21:09" (3/4) ... [2023-08-30 03:21:14,438 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-30 03:21:14,439 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:21:14,439 INFO L158 Benchmark]: Toolchain (without parser) took 6382.38ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 63.6MB in the beginning and 87.6MB in the end (delta: -24.0MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2023-08-30 03:21:14,439 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 65.0MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:21:14,439 INFO L158 Benchmark]: CACSL2BoogieTranslator took 811.41ms. Allocated memory is still 88.1MB. Free memory was 63.3MB in the beginning and 53.3MB in the end (delta: 10.0MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2023-08-30 03:21:14,440 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.23ms. Allocated memory is still 88.1MB. Free memory was 52.9MB in the beginning and 50.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 03:21:14,440 INFO L158 Benchmark]: Boogie Preprocessor took 44.36ms. Allocated memory is still 88.1MB. Free memory was 50.0MB in the beginning and 47.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:21:14,440 INFO L158 Benchmark]: RCFGBuilder took 571.55ms. Allocated memory is still 88.1MB. Free memory was 47.5MB in the beginning and 50.9MB in the end (delta: -3.5MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2023-08-30 03:21:14,440 INFO L158 Benchmark]: TraceAbstraction took 4897.17ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 50.2MB in the beginning and 87.6MB in the end (delta: -37.4MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2023-08-30 03:21:14,441 INFO L158 Benchmark]: Witness Printer took 2.41ms. Allocated memory is still 130.0MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:21:14,442 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 65.0MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 811.41ms. Allocated memory is still 88.1MB. Free memory was 63.3MB in the beginning and 53.3MB in the end (delta: 10.0MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.23ms. Allocated memory is still 88.1MB. Free memory was 52.9MB in the beginning and 50.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.36ms. Allocated memory is still 88.1MB. Free memory was 50.0MB in the beginning and 47.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 571.55ms. Allocated memory is still 88.1MB. Free memory was 47.5MB in the beginning and 50.9MB in the end (delta: -3.5MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4897.17ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 50.2MB in the beginning and 87.6MB in the end (delta: -37.4MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * Witness Printer took 2.41ms. Allocated memory is still 130.0MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 99 PlacesBefore, 22 PlacesAfterwards, 100 TransitionsBefore, 20 TransitionsAfterwards, 266 CoEnabledTransitionPairs, 6 FixpointIterations, 79 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 7 ConcurrentYvCompositions, 3 ChoiceCompositions, 118 TotalNumberOfCompositions, 398 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 330, independent: 268, independent conditional: 0, independent unconditional: 268, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 175, independent: 153, independent conditional: 0, independent unconditional: 153, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 330, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 175, unknown conditional: 0, unknown unconditional: 175] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 1695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1695. Possible FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL, EXPR 0 module_init() [L1709] 0 pdev = 1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1713] 0 return 0; [L1734] RET, EXPR 0 module_init() [L1734] COND FALSE 0 !(module_init()!=0) [L1735] CALL 0 module_exit() [L1721] 0 void *status; [L1723] 0 pdev = 4 VAL [arg={0:0}, mutex={4:0}, pdev=4, status={5:0}, t1={3:0}] [L1702] 1 pdev = 6 [L1705] 1 return 0; [L1726] CALL 0 ldv_assert(pdev==4) [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, arg={0:0}, arg={0:0}, expression=0, mutex={4:0}, pdev=6, t1={3:0}] - UnprovableResult [Line: 1695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1733]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 110 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 225 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 259 IncrementalHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 2 mSDtfsCounter, 259 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=4, InterpolantAutomatonStates: 18, 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, 0.4s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 136 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-08-30 03:21:14,473 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/ldv-races/race-1_3-join.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 --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 03:21:16,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:21:16,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:21:16,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:21:16,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:21:16,046 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:21:16,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:21:16,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:21:16,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:21:16,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:21:16,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:21:16,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:21:16,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:21:16,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:21:16,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:21:16,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:21:16,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:21:16,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:21:16,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:21:16,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:21:16,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:21:16,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:21:16,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:21:16,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:21:16,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:21:16,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:21:16,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:21:16,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:21:16,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:21:16,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:21:16,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:21:16,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:21:16,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:21:16,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:21:16,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:21:16,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:21:16,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:21:16,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:21:16,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:21:16,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:21:16,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:21:16,097 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-08-30 03:21:16,118 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:21:16,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:21:16,119 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:21:16,120 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:21:16,120 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:21:16,120 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:21:16,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:21:16,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:21:16,121 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:21:16,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:21:16,122 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:21:16,122 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:21:16,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:21:16,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:21:16,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:21:16,123 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:21:16,123 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:21:16,123 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:21:16,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:21:16,123 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:21:16,124 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-08-30 03:21:16,124 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-08-30 03:21:16,124 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:21:16,124 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:21:16,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:21:16,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:21:16,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:21:16,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:21:16,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:21:16,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:21:16,125 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-08-30 03:21:16,125 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-08-30 03:21:16,125 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:21:16,126 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:21:16,126 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:21:16,126 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-08-30 03:21:16,126 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:21:16,126 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:21:16,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:21:16,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:21:16,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:21:16,402 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:21:16,402 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:21:16,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i [2023-08-30 03:21:17,340 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:21:17,613 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:21:17,613 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i [2023-08-30 03:21:17,630 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/366693c81/33a94657f3c14338a8061ce512df0d96/FLAGf633997a7 [2023-08-30 03:21:17,642 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/366693c81/33a94657f3c14338a8061ce512df0d96 [2023-08-30 03:21:17,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:21:17,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:21:17,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:21:17,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:21:17,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:21:17,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:21:17" (1/1) ... [2023-08-30 03:21:17,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4699d1df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:17, skipping insertion in model container [2023-08-30 03:21:17,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:21:17" (1/1) ... [2023-08-30 03:21:17,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:21:17,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:21:18,145 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2023-08-30 03:21:18,167 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:21:18,181 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:21:18,220 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2023-08-30 03:21:18,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:21:18,287 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:21:18,288 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 03:21:18,292 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:21:18,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:18 WrapperNode [2023-08-30 03:21:18,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:21:18,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:21:18,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:21:18,293 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:21:18,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:18" (1/1) ... [2023-08-30 03:21:18,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:18" (1/1) ... [2023-08-30 03:21:18,331 INFO L138 Inliner]: procedures = 486, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2023-08-30 03:21:18,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:21:18,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:21:18,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:21:18,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:21:18,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:18" (1/1) ... [2023-08-30 03:21:18,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:18" (1/1) ... [2023-08-30 03:21:18,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:18" (1/1) ... [2023-08-30 03:21:18,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:18" (1/1) ... [2023-08-30 03:21:18,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:18" (1/1) ... [2023-08-30 03:21:18,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:18" (1/1) ... [2023-08-30 03:21:18,357 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:18" (1/1) ... [2023-08-30 03:21:18,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:18" (1/1) ... [2023-08-30 03:21:18,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:21:18,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:21:18,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:21:18,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:21:18,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:18" (1/1) ... [2023-08-30 03:21:18,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:21:18,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:21:18,382 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 03:21:18,403 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 03:21:18,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 03:21:18,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:21:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-08-30 03:21:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-08-30 03:21:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 03:21:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 03:21:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:21:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 03:21:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:21:18,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:21:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-08-30 03:21:18,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:21:18,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-08-30 03:21:18,411 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-30 03:21:18,411 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-30 03:21:18,412 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 03:21:18,723 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:21:18,730 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:21:18,901 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:21:18,916 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:21:18,917 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:21:18,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:21:18 BoogieIcfgContainer [2023-08-30 03:21:18,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:21:18,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:21:18,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:21:18,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:21:18,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:21:17" (1/3) ... [2023-08-30 03:21:18,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@466aa879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:21:18, skipping insertion in model container [2023-08-30 03:21:18,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:21:18" (2/3) ... [2023-08-30 03:21:18,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@466aa879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:21:18, skipping insertion in model container [2023-08-30 03:21:18,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:21:18" (3/3) ... [2023-08-30 03:21:18,923 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2023-08-30 03:21:18,934 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:21:18,934 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-08-30 03:21:18,934 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:21:18,974 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 03:21:19,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 104 transitions, 216 flow [2023-08-30 03:21:19,044 INFO L130 PetriNetUnfolder]: 4/122 cut-off events. [2023-08-30 03:21:19,044 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:21:19,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 122 events. 4/122 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 234 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 73. Up to 3 conditions per place. [2023-08-30 03:21:19,047 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 104 transitions, 216 flow [2023-08-30 03:21:19,051 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 99 transitions, 204 flow [2023-08-30 03:21:19,054 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:21:19,060 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 99 transitions, 204 flow [2023-08-30 03:21:19,061 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 99 transitions, 204 flow [2023-08-30 03:21:19,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 99 transitions, 204 flow [2023-08-30 03:21:19,102 INFO L130 PetriNetUnfolder]: 4/114 cut-off events. [2023-08-30 03:21:19,102 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:21:19,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 114 events. 4/114 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 183 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 69. Up to 3 conditions per place. [2023-08-30 03:21:19,103 INFO L119 LiptonReduction]: Number of co-enabled transitions 252 [2023-08-30 03:21:26,574 INFO L134 LiptonReduction]: Checked pairs total: 369 [2023-08-30 03:21:26,574 INFO L136 LiptonReduction]: Total number of compositions: 116 [2023-08-30 03:21:26,584 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:21:26,589 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;@6a799d6e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:21:26,589 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-08-30 03:21:26,591 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 03:21:26,591 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:21:26,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:21:26,592 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:21:26,592 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-30 03:21:26,596 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:21:26,597 INFO L85 PathProgramCache]: Analyzing trace with hash 411, now seen corresponding path program 1 times [2023-08-30 03:21:26,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 03:21:26,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276594788] [2023-08-30 03:21:26,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:21:26,612 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 03:21:26,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 03:21:26,614 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-30 03:21:26,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-08-30 03:21:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:21:26,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-08-30 03:21:26,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 03:21:26,696 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 03:21:26,696 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 03:21:26,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-30 03:21:26,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276594788] [2023-08-30 03:21:26,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276594788] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:21:26,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:21:26,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:21:26,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842512029] [2023-08-30 03:21:26,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:21:26,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:21:26,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-30 03:21:26,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:21:26,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:21:26,726 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 220 [2023-08-30 03:21:26,727 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 20 transitions, 46 flow. Second operand has 2 states, 2 states have (on average 94.5) internal successors, (189), 2 states have internal predecessors, (189), 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 03:21:26,727 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:21:26,727 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 220 [2023-08-30 03:21:26,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:21:26,764 INFO L130 PetriNetUnfolder]: 8/35 cut-off events. [2023-08-30 03:21:26,764 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:21:26,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 35 events. 8/35 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 93 event pairs, 7 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 44. Up to 34 conditions per place. [2023-08-30 03:21:26,766 INFO L137 encePairwiseOnDemand]: 215/220 looper letters, 13 selfloop transitions, 0 changer transitions 0/15 dead transitions. [2023-08-30 03:21:26,766 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 15 transitions, 62 flow [2023-08-30 03:21:26,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:21:26,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:21:26,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 206 transitions. [2023-08-30 03:21:26,790 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4681818181818182 [2023-08-30 03:21:26,791 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 206 transitions. [2023-08-30 03:21:26,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 206 transitions. [2023-08-30 03:21:26,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:21:26,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 206 transitions. [2023-08-30 03:21:26,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 103.0) internal successors, (206), 2 states have internal predecessors, (206), 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 03:21:26,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 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 03:21:26,799 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 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 03:21:26,801 INFO L175 Difference]: Start difference. First operand has 22 places, 20 transitions, 46 flow. Second operand 2 states and 206 transitions. [2023-08-30 03:21:26,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 15 transitions, 62 flow [2023-08-30 03:21:26,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 15 transitions, 58 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:21:26,806 INFO L231 Difference]: Finished difference. Result has 16 places, 15 transitions, 32 flow [2023-08-30 03:21:26,808 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=32, PETRI_PLACES=16, PETRI_TRANSITIONS=15} [2023-08-30 03:21:26,810 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -6 predicate places. [2023-08-30 03:21:26,811 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 15 transitions, 32 flow [2023-08-30 03:21:26,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 94.5) internal successors, (189), 2 states have internal predecessors, (189), 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 03:21:26,812 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:21:26,812 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-30 03:21:26,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-08-30 03:21:27,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 03:21:27,018 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-30 03:21:27,019 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:21:27,019 INFO L85 PathProgramCache]: Analyzing trace with hash 13021, now seen corresponding path program 1 times [2023-08-30 03:21:27,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 03:21:27,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521489610] [2023-08-30 03:21:27,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:21:27,020 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 03:21:27,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 03:21:27,021 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-30 03:21:27,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-08-30 03:21:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:21:27,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2023-08-30 03:21:27,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 03:21:27,118 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 03:21:27,118 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 03:21:27,118 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-30 03:21:27,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521489610] [2023-08-30 03:21:27,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521489610] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:21:27,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:21:27,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 03:21:27,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570068410] [2023-08-30 03:21:27,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:21:27,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:21:27,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-30 03:21:27,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:21:27,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:21:27,161 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 220 [2023-08-30 03:21:27,161 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 15 transitions, 32 flow. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:21:27,161 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:21:27,162 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 220 [2023-08-30 03:21:27,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:21:27,198 INFO L130 PetriNetUnfolder]: 6/31 cut-off events. [2023-08-30 03:21:27,198 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:21:27,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 31 events. 6/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 77 event pairs, 1 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 61. Up to 23 conditions per place. [2023-08-30 03:21:27,199 INFO L137 encePairwiseOnDemand]: 216/220 looper letters, 10 selfloop transitions, 3 changer transitions 0/15 dead transitions. [2023-08-30 03:21:27,199 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 15 transitions, 58 flow [2023-08-30 03:21:27,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:21:27,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:21:27,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2023-08-30 03:21:27,202 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4212121212121212 [2023-08-30 03:21:27,202 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 278 transitions. [2023-08-30 03:21:27,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 278 transitions. [2023-08-30 03:21:27,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:21:27,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 278 transitions. [2023-08-30 03:21:27,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 03:21:27,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 220.0) internal successors, (880), 4 states have internal predecessors, (880), 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 03:21:27,206 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 220.0) internal successors, (880), 4 states have internal predecessors, (880), 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 03:21:27,206 INFO L175 Difference]: Start difference. First operand has 16 places, 15 transitions, 32 flow. Second operand 3 states and 278 transitions. [2023-08-30 03:21:27,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 15 transitions, 58 flow [2023-08-30 03:21:27,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 15 transitions, 58 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 03:21:27,206 INFO L231 Difference]: Finished difference. Result has 18 places, 14 transitions, 36 flow [2023-08-30 03:21:27,207 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=18, PETRI_TRANSITIONS=14} [2023-08-30 03:21:27,207 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -4 predicate places. [2023-08-30 03:21:27,207 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 14 transitions, 36 flow [2023-08-30 03:21:27,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:21:27,208 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:21:27,208 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 03:21:27,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-08-30 03:21:27,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 03:21:27,416 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-30 03:21:27,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:21:27,417 INFO L85 PathProgramCache]: Analyzing trace with hash 403778, now seen corresponding path program 1 times [2023-08-30 03:21:27,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 03:21:27,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990283983] [2023-08-30 03:21:27,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:21:27,418 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 03:21:27,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 03:21:27,419 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-30 03:21:27,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-08-30 03:21:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:21:27,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-30 03:21:27,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 03:21:27,521 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 03:21:27,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 03:21:27,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-30 03:21:27,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990283983] [2023-08-30 03:21:27,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [990283983] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:21:27,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:21:27,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:21:27,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659075938] [2023-08-30 03:21:27,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:21:27,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:21:27,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-30 03:21:27,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:21:27,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:21:27,532 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 220 [2023-08-30 03:21:27,533 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 14 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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 03:21:27,533 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:21:27,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 220 [2023-08-30 03:21:27,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:21:27,577 INFO L130 PetriNetUnfolder]: 6/26 cut-off events. [2023-08-30 03:21:27,577 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:21:27,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 26 events. 6/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 46 event pairs, 6 based on Foata normal form. 1/19 useless extension candidates. Maximal degree in co-relation 55. Up to 24 conditions per place. [2023-08-30 03:21:27,578 INFO L137 encePairwiseOnDemand]: 218/220 looper letters, 11 selfloop transitions, 0 changer transitions 1/14 dead transitions. [2023-08-30 03:21:27,578 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 14 transitions, 60 flow [2023-08-30 03:21:27,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:21:27,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:21:27,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 280 transitions. [2023-08-30 03:21:27,584 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42424242424242425 [2023-08-30 03:21:27,584 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 280 transitions. [2023-08-30 03:21:27,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 280 transitions. [2023-08-30 03:21:27,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:21:27,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 280 transitions. [2023-08-30 03:21:27,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:21:27,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 220.0) internal successors, (880), 4 states have internal predecessors, (880), 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 03:21:27,588 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 220.0) internal successors, (880), 4 states have internal predecessors, (880), 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 03:21:27,588 INFO L175 Difference]: Start difference. First operand has 18 places, 14 transitions, 36 flow. Second operand 3 states and 280 transitions. [2023-08-30 03:21:27,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 14 transitions, 60 flow [2023-08-30 03:21:27,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 14 transitions, 54 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:21:27,589 INFO L231 Difference]: Finished difference. Result has 19 places, 13 transitions, 30 flow [2023-08-30 03:21:27,589 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=30, PETRI_PLACES=19, PETRI_TRANSITIONS=13} [2023-08-30 03:21:27,590 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -3 predicate places. [2023-08-30 03:21:27,590 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 13 transitions, 30 flow [2023-08-30 03:21:27,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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 03:21:27,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:21:27,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 03:21:27,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-08-30 03:21:27,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 03:21:27,799 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-30 03:21:27,800 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:21:27,800 INFO L85 PathProgramCache]: Analyzing trace with hash 388719853, now seen corresponding path program 1 times [2023-08-30 03:21:27,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 03:21:27,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1209229664] [2023-08-30 03:21:27,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:21:27,803 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 03:21:27,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 03:21:27,805 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-30 03:21:27,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-08-30 03:21:27,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:21:27,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 03:21:27,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 03:21:27,899 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 03:21:27,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 03:21:27,899 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-30 03:21:27,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1209229664] [2023-08-30 03:21:27,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1209229664] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:21:27,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:21:27,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:21:27,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570996359] [2023-08-30 03:21:27,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:21:27,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 03:21:27,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-30 03:21:27,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 03:21:27,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 03:21:27,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 220 [2023-08-30 03:21:27,912 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:21:27,912 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:21:27,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 220 [2023-08-30 03:21:27,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:21:27,960 INFO L130 PetriNetUnfolder]: 5/30 cut-off events. [2023-08-30 03:21:27,960 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:21:27,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 30 events. 5/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 71 event pairs, 1 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 59. Up to 15 conditions per place. [2023-08-30 03:21:27,961 INFO L137 encePairwiseOnDemand]: 213/220 looper letters, 11 selfloop transitions, 6 changer transitions 0/19 dead transitions. [2023-08-30 03:21:27,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 19 transitions, 77 flow [2023-08-30 03:21:27,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 03:21:27,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 03:21:27,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 282 transitions. [2023-08-30 03:21:27,963 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42727272727272725 [2023-08-30 03:21:27,963 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 282 transitions. [2023-08-30 03:21:27,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 282 transitions. [2023-08-30 03:21:27,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:21:27,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 282 transitions. [2023-08-30 03:21:27,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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 03:21:27,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 220.0) internal successors, (880), 4 states have internal predecessors, (880), 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 03:21:27,966 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 220.0) internal successors, (880), 4 states have internal predecessors, (880), 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 03:21:27,966 INFO L175 Difference]: Start difference. First operand has 19 places, 13 transitions, 30 flow. Second operand 3 states and 282 transitions. [2023-08-30 03:21:27,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 19 transitions, 77 flow [2023-08-30 03:21:27,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 19 transitions, 75 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 03:21:27,967 INFO L231 Difference]: Finished difference. Result has 21 places, 18 transitions, 74 flow [2023-08-30 03:21:27,967 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=21, PETRI_TRANSITIONS=18} [2023-08-30 03:21:27,968 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -1 predicate places. [2023-08-30 03:21:27,968 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 18 transitions, 74 flow [2023-08-30 03:21:27,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:21:27,969 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:21:27,969 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 03:21:27,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-08-30 03:21:28,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 03:21:28,177 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-30 03:21:28,178 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:21:28,178 INFO L85 PathProgramCache]: Analyzing trace with hash 388719960, now seen corresponding path program 1 times [2023-08-30 03:21:28,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 03:21:28,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81810926] [2023-08-30 03:21:28,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:21:28,179 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 03:21:28,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 03:21:28,180 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-30 03:21:28,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-08-30 03:21:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:21:28,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-30 03:21:28,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 03:21:28,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 03:21:28,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-08-30 03:21:28,421 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 03:21:28,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 03:21:28,423 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-30 03:21:28,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [81810926] [2023-08-30 03:21:28,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [81810926] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:21:28,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:21:28,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 03:21:28,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393901703] [2023-08-30 03:21:28,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:21:28,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 03:21:28,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-30 03:21:28,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 03:21:28,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 03:21:28,533 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 220 [2023-08-30 03:21:28,534 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 18 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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 03:21:28,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:21:28,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 220 [2023-08-30 03:21:28,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:21:28,565 INFO L130 PetriNetUnfolder]: 3/22 cut-off events. [2023-08-30 03:21:28,566 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-30 03:21:28,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 22 events. 3/22 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 32 event pairs, 1 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 59. Up to 16 conditions per place. [2023-08-30 03:21:28,566 INFO L137 encePairwiseOnDemand]: 216/220 looper letters, 9 selfloop transitions, 3 changer transitions 0/14 dead transitions. [2023-08-30 03:21:28,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 14 transitions, 78 flow [2023-08-30 03:21:28,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 03:21:28,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 03:21:28,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 355 transitions. [2023-08-30 03:21:28,568 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4034090909090909 [2023-08-30 03:21:28,568 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 355 transitions. [2023-08-30 03:21:28,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 355 transitions. [2023-08-30 03:21:28,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:21:28,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 355 transitions. [2023-08-30 03:21:28,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 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 03:21:28,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 220.0) internal successors, (1100), 5 states have internal predecessors, (1100), 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 03:21:28,570 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 220.0) internal successors, (1100), 5 states have internal predecessors, (1100), 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 03:21:28,570 INFO L175 Difference]: Start difference. First operand has 21 places, 18 transitions, 74 flow. Second operand 4 states and 355 transitions. [2023-08-30 03:21:28,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 14 transitions, 78 flow [2023-08-30 03:21:28,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 14 transitions, 70 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:21:28,571 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 52 flow [2023-08-30 03:21:28,571 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=52, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2023-08-30 03:21:28,572 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -2 predicate places. [2023-08-30 03:21:28,572 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 52 flow [2023-08-30 03:21:28,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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 03:21:28,572 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:21:28,572 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 03:21:28,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-08-30 03:21:28,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 03:21:28,773 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-08-30 03:21:28,773 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:21:28,773 INFO L85 PathProgramCache]: Analyzing trace with hash -834580676, now seen corresponding path program 1 times [2023-08-30 03:21:28,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 03:21:28,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194508940] [2023-08-30 03:21:28,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:21:28,774 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 03:21:28,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 03:21:28,775 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-30 03:21:28,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-08-30 03:21:28,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:21:28,862 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 03:21:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:21:28,898 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-08-30 03:21:28,898 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 03:21:28,899 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (11 of 12 remaining) [2023-08-30 03:21:28,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (10 of 12 remaining) [2023-08-30 03:21:28,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2023-08-30 03:21:28,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 12 remaining) [2023-08-30 03:21:28,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (7 of 12 remaining) [2023-08-30 03:21:28,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (6 of 12 remaining) [2023-08-30 03:21:28,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 12 remaining) [2023-08-30 03:21:28,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 12 remaining) [2023-08-30 03:21:28,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 12 remaining) [2023-08-30 03:21:28,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 12 remaining) [2023-08-30 03:21:28,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (1 of 12 remaining) [2023-08-30 03:21:28,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-08-30 03:21:28,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-08-30 03:21:29,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 03:21:29,102 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-30 03:21:29,106 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:21:29,106 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:21:29,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:21:29 BasicIcfg [2023-08-30 03:21:29,120 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:21:29,120 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:21:29,120 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:21:29,121 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:21:29,121 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:21:18" (3/4) ... [2023-08-30 03:21:29,122 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-30 03:21:29,123 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:21:29,123 INFO L158 Benchmark]: Toolchain (without parser) took 11474.74ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 59.4MB in the beginning and 62.1MB in the end (delta: -2.7MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2023-08-30 03:21:29,123 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 60.8MB. Free memory was 38.6MB in the beginning and 38.5MB in the end (delta: 57.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:21:29,123 INFO L158 Benchmark]: CACSL2BoogieTranslator took 641.94ms. Allocated memory is still 83.9MB. Free memory was 59.1MB in the beginning and 46.2MB in the end (delta: 12.9MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2023-08-30 03:21:29,124 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.96ms. Allocated memory is still 83.9MB. Free memory was 46.2MB in the beginning and 42.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:21:29,124 INFO L158 Benchmark]: Boogie Preprocessor took 29.44ms. Allocated memory is still 83.9MB. Free memory was 42.9MB in the beginning and 39.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 03:21:29,124 INFO L158 Benchmark]: RCFGBuilder took 555.89ms. Allocated memory is still 83.9MB. Free memory was 39.6MB in the beginning and 36.5MB in the end (delta: 3.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 03:21:29,124 INFO L158 Benchmark]: TraceAbstraction took 10200.55ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 35.7MB in the beginning and 62.1MB in the end (delta: -26.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:21:29,125 INFO L158 Benchmark]: Witness Printer took 2.16ms. Allocated memory is still 104.9MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:21:29,126 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 60.8MB. Free memory was 38.6MB in the beginning and 38.5MB in the end (delta: 57.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 641.94ms. Allocated memory is still 83.9MB. Free memory was 59.1MB in the beginning and 46.2MB in the end (delta: 12.9MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.96ms. Allocated memory is still 83.9MB. Free memory was 46.2MB in the beginning and 42.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.44ms. Allocated memory is still 83.9MB. Free memory was 42.9MB in the beginning and 39.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 555.89ms. Allocated memory is still 83.9MB. Free memory was 39.6MB in the beginning and 36.5MB in the end (delta: 3.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 10200.55ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 35.7MB in the beginning and 62.1MB in the end (delta: -26.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.16ms. Allocated memory is still 104.9MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.5s, 98 PlacesBefore, 22 PlacesAfterwards, 99 TransitionsBefore, 20 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 6 FixpointIterations, 81 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 116 TotalNumberOfCompositions, 369 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 327, independent: 271, independent conditional: 0, independent unconditional: 271, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 162, independent: 143, independent conditional: 0, independent unconditional: 143, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 327, independent: 128, independent conditional: 0, independent unconditional: 128, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 162, unknown conditional: 0, unknown unconditional: 162] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 1695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1695. Possible FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL, EXPR 0 module_init() [L1709] 0 pdev = 1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=0, t1={3:0}] [L1713] 0 return 0; [L1734] RET, EXPR 0 module_init() [L1734] COND FALSE 0 !(module_init()!=0) [L1735] CALL 0 module_exit() [L1721] 0 void *status; [L1723] 0 pdev = 4 VAL [arg={0:0}, mutex={4:0}, pdev=4, status={7:0}, t1={3:0}] [L1702] 1 pdev = 6 [L1705] 1 return 0; [L1726] CALL 0 ldv_assert(pdev==4) [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, arg={0:0}, arg={0:0}, expression=0, mutex={4:0}, pdev=6, t1={3:0}] - UnprovableResult [Line: 1695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1733]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 109 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 161 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 193 IncrementalHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 38 mSDtfsCounter, 193 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=4, InterpolantAutomatonStates: 15, 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, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 112 SizeOfPredicates, 2 NumberOfNonLiveVariables, 221 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-08-30 03:21:29,144 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: UNKNOWN: Overapproximated counterexample