./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.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 db89c87a20c604c9441b7de7f477400cd6fc4624b5ed335b5e7cd959bb73911d --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 03:59:13,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:59:13,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:59:13,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:59:13,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:59:13,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:59:13,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:59:13,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:59:13,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:59:13,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:59:13,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:59:13,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:59:13,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:59:13,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:59:13,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:59:13,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:59:13,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:59:13,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:59:13,500 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:59:13,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:59:13,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:59:13,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:59:13,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:59:13,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:59:13,531 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:59:13,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:59:13,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:59:13,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:59:13,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:59:13,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:59:13,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:59:13,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:59:13,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:59:13,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:59:13,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:59:13,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:59:13,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:59:13,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:59:13,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:59:13,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:59:13,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:59:13,549 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:59:13,581 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:59:13,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:59:13,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:59:13,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:59:13,584 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:59:13,584 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:59:13,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:59:13,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:59:13,585 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:59:13,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:59:13,586 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:59:13,586 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:59:13,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:59:13,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:59:13,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:59:13,587 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:59:13,587 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:59:13,587 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:59:13,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:59:13,587 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:59:13,587 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:59:13,588 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:59:13,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:59:13,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:59:13,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:59:13,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:59:13,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:59:13,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:59:13,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:59:13,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:59:13,589 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:59:13,589 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:59:13,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:59:13,590 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:59:13,590 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db89c87a20c604c9441b7de7f477400cd6fc4624b5ed335b5e7cd959bb73911d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:59:13,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:59:13,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:59:13,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:59:13,895 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:59:13,895 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:59:13,897 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2023-08-30 03:59:14,995 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:59:15,265 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:59:15,265 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2023-08-30 03:59:15,276 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/802b0a879/0b1b79dd96984e42942dd8d0d46c52f8/FLAG72341b811 [2023-08-30 03:59:15,291 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/802b0a879/0b1b79dd96984e42942dd8d0d46c52f8 [2023-08-30 03:59:15,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:59:15,294 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:59:15,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:59:15,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:59:15,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:59:15,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:59:15" (1/1) ... [2023-08-30 03:59:15,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f914f35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:15, skipping insertion in model container [2023-08-30 03:59:15,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:59:15" (1/1) ... [2023-08-30 03:59:15,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:59:15,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:59:15,504 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i[1097,1110] [2023-08-30 03:59:15,652 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:59:15,662 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:59:15,675 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i[1097,1110] [2023-08-30 03:59:15,706 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:59:15,784 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:59:15,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:15 WrapperNode [2023-08-30 03:59:15,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:59:15,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:59:15,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:59:15,786 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:59:15,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:15" (1/1) ... [2023-08-30 03:59:15,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:15" (1/1) ... [2023-08-30 03:59:15,821 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-08-30 03:59:15,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:59:15,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:59:15,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:59:15,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:59:15,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:15" (1/1) ... [2023-08-30 03:59:15,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:15" (1/1) ... [2023-08-30 03:59:15,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:15" (1/1) ... [2023-08-30 03:59:15,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:15" (1/1) ... [2023-08-30 03:59:15,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:15" (1/1) ... [2023-08-30 03:59:15,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:15" (1/1) ... [2023-08-30 03:59:15,865 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:15" (1/1) ... [2023-08-30 03:59:15,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:15" (1/1) ... [2023-08-30 03:59:15,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:59:15,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:59:15,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:59:15,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:59:15,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:15" (1/1) ... [2023-08-30 03:59:15,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:59:15,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:59:15,924 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 03:59:15,946 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 03:59:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 03:59:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:59:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 03:59:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:59:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:59:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 03:59:15,960 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 03:59:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:59:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 03:59:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:59:15,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:59:15,962 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 03:59:16,110 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:59:16,111 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:59:16,287 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:59:16,293 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:59:16,293 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:59:16,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:16 BoogieIcfgContainer [2023-08-30 03:59:16,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:59:16,297 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:59:16,297 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:59:16,299 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:59:16,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:59:15" (1/3) ... [2023-08-30 03:59:16,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d2362b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:59:16, skipping insertion in model container [2023-08-30 03:59:16,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:15" (2/3) ... [2023-08-30 03:59:16,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d2362b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:59:16, skipping insertion in model container [2023-08-30 03:59:16,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:16" (3/3) ... [2023-08-30 03:59:16,302 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_neg.i [2023-08-30 03:59:16,315 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:59:16,316 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 03:59:16,316 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:59:16,364 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 03:59:16,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 67 transitions, 142 flow [2023-08-30 03:59:16,420 INFO L130 PetriNetUnfolder]: 2/66 cut-off events. [2023-08-30 03:59:16,420 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:16,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 66 events. 2/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 34 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2023-08-30 03:59:16,424 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 67 transitions, 142 flow [2023-08-30 03:59:16,426 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:16,429 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:59:16,437 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:16,440 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:16,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:16,456 INFO L130 PetriNetUnfolder]: 2/62 cut-off events. [2023-08-30 03:59:16,456 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:16,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 62 events. 2/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2023-08-30 03:59:16,457 INFO L119 LiptonReduction]: Number of co-enabled transitions 368 [2023-08-30 03:59:18,295 INFO L134 LiptonReduction]: Checked pairs total: 628 [2023-08-30 03:59:18,295 INFO L136 LiptonReduction]: Total number of compositions: 69 [2023-08-30 03:59:18,305 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:59:18,309 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;@37f213c5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:59:18,310 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-30 03:59:18,311 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-30 03:59:18,312 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:59:18,312 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:59:18,312 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:59:18,313 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:59:18,316 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:59:18,316 INFO L85 PathProgramCache]: Analyzing trace with hash 268, now seen corresponding path program 1 times [2023-08-30 03:59:18,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:59:18,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989577317] [2023-08-30 03:59:18,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:59:18,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:59:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:59:18,392 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 03:59:18,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:59:18,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989577317] [2023-08-30 03:59:18,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989577317] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:59:18,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:59:18,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:59:18,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597623762] [2023-08-30 03:59:18,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:59:18,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:59:18,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:59:18,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:59:18,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:59:18,419 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 136 [2023-08-30 03:59:18,420 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 13 transitions, 32 flow. Second operand has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 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 03:59:18,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:59:18,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 136 [2023-08-30 03:59:18,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:59:18,449 INFO L130 PetriNetUnfolder]: 12/35 cut-off events. [2023-08-30 03:59:18,449 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:18,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 35 events. 12/35 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 87 event pairs, 12 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 62. Up to 36 conditions per place. [2023-08-30 03:59:18,450 INFO L137 encePairwiseOnDemand]: 134/136 looper letters, 11 selfloop transitions, 0 changer transitions 0/11 dead transitions. [2023-08-30 03:59:18,451 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 11 transitions, 50 flow [2023-08-30 03:59:18,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:59:18,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:59:18,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 139 transitions. [2023-08-30 03:59:18,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5110294117647058 [2023-08-30 03:59:18,459 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 139 transitions. [2023-08-30 03:59:18,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 139 transitions. [2023-08-30 03:59:18,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:59:18,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 139 transitions. [2023-08-30 03:59:18,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 69.5) internal successors, (139), 2 states have internal predecessors, (139), 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 03:59:18,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 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 03:59:18,466 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 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 03:59:18,468 INFO L175 Difference]: Start difference. First operand has 17 places, 13 transitions, 32 flow. Second operand 2 states and 139 transitions. [2023-08-30 03:59:18,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 11 transitions, 50 flow [2023-08-30 03:59:18,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 11 transitions, 46 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:59:18,470 INFO L231 Difference]: Finished difference. Result has 14 places, 11 transitions, 24 flow [2023-08-30 03:59:18,472 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=24, PETRI_PLACES=14, PETRI_TRANSITIONS=11} [2023-08-30 03:59:18,474 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, -3 predicate places. [2023-08-30 03:59:18,474 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 11 transitions, 24 flow [2023-08-30 03:59:18,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 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 03:59:18,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:59:18,475 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 03:59:18,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:59:18,475 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:59:18,476 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:59:18,476 INFO L85 PathProgramCache]: Analyzing trace with hash 261037, now seen corresponding path program 1 times [2023-08-30 03:59:18,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:59:18,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852542539] [2023-08-30 03:59:18,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:59:18,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:59:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:59:18,504 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 03:59:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:59:18,534 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 03:59:18,534 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 03:59:18,535 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2023-08-30 03:59:18,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2023-08-30 03:59:18,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2023-08-30 03:59:18,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2023-08-30 03:59:18,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2023-08-30 03:59:18,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2023-08-30 03:59:18,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2023-08-30 03:59:18,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2023-08-30 03:59:18,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:59:18,543 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 03:59:18,548 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:59:18,548 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:59:18,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:59:18 BasicIcfg [2023-08-30 03:59:18,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:59:18,561 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:59:18,561 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:59:18,561 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:59:18,576 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:16" (3/4) ... [2023-08-30 03:59:18,578 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-30 03:59:18,578 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:59:18,579 INFO L158 Benchmark]: Toolchain (without parser) took 3284.87ms. Allocated memory was 69.2MB in the beginning and 142.6MB in the end (delta: 73.4MB). Free memory was 46.7MB in the beginning and 85.6MB in the end (delta: -38.9MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2023-08-30 03:59:18,579 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 69.2MB. Free memory was 47.7MB in the beginning and 47.6MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:18,580 INFO L158 Benchmark]: CACSL2BoogieTranslator took 488.71ms. Allocated memory was 69.2MB in the beginning and 117.4MB in the end (delta: 48.2MB). Free memory was 46.5MB in the beginning and 94.6MB in the end (delta: -48.0MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2023-08-30 03:59:18,580 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.71ms. Allocated memory is still 117.4MB. Free memory was 94.6MB in the beginning and 92.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:59:18,580 INFO L158 Benchmark]: Boogie Preprocessor took 46.10ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 91.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:18,581 INFO L158 Benchmark]: RCFGBuilder took 422.34ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 78.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 03:59:18,581 INFO L158 Benchmark]: TraceAbstraction took 2264.14ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 77.3MB in the beginning and 86.7MB in the end (delta: -9.4MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2023-08-30 03:59:18,581 INFO L158 Benchmark]: Witness Printer took 17.55ms. Allocated memory is still 142.6MB. Free memory was 86.7MB in the beginning and 85.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:18,583 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 69.2MB. Free memory was 47.7MB in the beginning and 47.6MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 488.71ms. Allocated memory was 69.2MB in the beginning and 117.4MB in the end (delta: 48.2MB). Free memory was 46.5MB in the beginning and 94.6MB in the end (delta: -48.0MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.71ms. Allocated memory is still 117.4MB. Free memory was 94.6MB in the beginning and 92.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.10ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 91.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 422.34ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 78.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2264.14ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 77.3MB in the beginning and 86.7MB in the end (delta: -9.4MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * Witness Printer took 17.55ms. Allocated memory is still 142.6MB. Free memory was 86.7MB in the beginning and 85.6MB in the end (delta: 1.0MB). 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: 1.9s, 64 PlacesBefore, 17 PlacesAfterwards, 62 TransitionsBefore, 13 TransitionsAfterwards, 368 CoEnabledTransitionPairs, 5 FixpointIterations, 33 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 69 TotalNumberOfCompositions, 628 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 438, independent: 395, independent conditional: 0, independent unconditional: 395, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 237, independent: 220, independent conditional: 0, independent unconditional: 220, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 438, independent: 175, independent conditional: 0, independent unconditional: 175, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 237, unknown conditional: 0, unknown unconditional: 237] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, 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: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(!(t == 0)) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - 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: 696]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 698]: 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, 89 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 03:59:18,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.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 db89c87a20c604c9441b7de7f477400cd6fc4624b5ed335b5e7cd959bb73911d --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 03:59:20,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:59:20,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:59:20,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:59:20,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:59:20,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:59:20,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:59:20,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:59:20,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:59:20,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:59:20,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:59:20,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:59:20,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:59:20,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:59:20,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:59:20,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:59:20,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:59:20,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:59:20,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:59:20,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:59:20,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:59:20,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:59:20,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:59:20,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:59:20,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:59:20,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:59:20,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:59:20,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:59:20,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:59:20,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:59:20,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:59:20,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:59:20,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:59:20,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:59:20,691 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:59:20,691 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:59:20,692 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:59:20,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:59:20,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:59:20,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:59:20,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:59:20,694 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-08-30 03:59:20,726 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:59:20,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:59:20,727 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:59:20,727 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:59:20,728 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:59:20,728 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:59:20,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:59:20,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:59:20,729 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:59:20,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:59:20,730 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:59:20,730 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:59:20,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:59:20,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:59:20,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:59:20,731 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:59:20,731 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:59:20,731 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:59:20,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:59:20,731 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:59:20,731 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-08-30 03:59:20,731 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-08-30 03:59:20,732 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:59:20,732 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:59:20,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:59:20,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:59:20,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:59:20,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:59:20,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:59:20,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:59:20,733 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-08-30 03:59:20,733 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-08-30 03:59:20,733 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:59:20,733 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:59:20,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:59:20,734 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-08-30 03:59:20,734 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:59:20,734 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db89c87a20c604c9441b7de7f477400cd6fc4624b5ed335b5e7cd959bb73911d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:59:20,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:59:21,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:59:21,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:59:21,008 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:59:21,008 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:59:21,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2023-08-30 03:59:21,990 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:59:22,200 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:59:22,200 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2023-08-30 03:59:22,224 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67a7bfcf1/08b05d43cf55446daba5b8beaf7a2613/FLAGcd120e4bc [2023-08-30 03:59:22,238 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67a7bfcf1/08b05d43cf55446daba5b8beaf7a2613 [2023-08-30 03:59:22,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:59:22,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:59:22,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:59:22,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:59:22,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:59:22,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:59:22" (1/1) ... [2023-08-30 03:59:22,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6102a916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:22, skipping insertion in model container [2023-08-30 03:59:22,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:59:22" (1/1) ... [2023-08-30 03:59:22,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:59:22,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:59:22,413 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i[1097,1110] [2023-08-30 03:59:22,527 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:59:22,539 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:59:22,551 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i[1097,1110] [2023-08-30 03:59:22,631 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:59:22,662 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:59:22,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:22 WrapperNode [2023-08-30 03:59:22,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:59:22,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:59:22,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:59:22,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:59:22,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:22" (1/1) ... [2023-08-30 03:59:22,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:22" (1/1) ... [2023-08-30 03:59:22,697 INFO L138 Inliner]: procedures = 167, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-08-30 03:59:22,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:59:22,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:59:22,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:59:22,699 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:59:22,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:22" (1/1) ... [2023-08-30 03:59:22,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:22" (1/1) ... [2023-08-30 03:59:22,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:22" (1/1) ... [2023-08-30 03:59:22,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:22" (1/1) ... [2023-08-30 03:59:22,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:22" (1/1) ... [2023-08-30 03:59:22,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:22" (1/1) ... [2023-08-30 03:59:22,721 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:22" (1/1) ... [2023-08-30 03:59:22,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:22" (1/1) ... [2023-08-30 03:59:22,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:59:22,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:59:22,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:59:22,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:59:22,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:22" (1/1) ... [2023-08-30 03:59:22,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:59:22,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:59:22,751 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 03:59:22,766 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 03:59:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-08-30 03:59:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 03:59:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:59:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:59:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 03:59:22,773 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 03:59:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:59:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-08-30 03:59:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-08-30 03:59:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-08-30 03:59:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:59:22,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:59:22,775 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 03:59:22,908 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:59:22,914 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:59:23,073 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:59:23,077 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:59:23,077 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:59:23,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:23 BoogieIcfgContainer [2023-08-30 03:59:23,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:59:23,080 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:59:23,080 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:59:23,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:59:23,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:59:22" (1/3) ... [2023-08-30 03:59:23,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664c7498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:59:23, skipping insertion in model container [2023-08-30 03:59:23,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:22" (2/3) ... [2023-08-30 03:59:23,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664c7498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:59:23, skipping insertion in model container [2023-08-30 03:59:23,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:23" (3/3) ... [2023-08-30 03:59:23,084 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_neg.i [2023-08-30 03:59:23,094 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:59:23,095 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 03:59:23,095 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:59:23,133 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 03:59:23,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 67 transitions, 142 flow [2023-08-30 03:59:23,194 INFO L130 PetriNetUnfolder]: 2/66 cut-off events. [2023-08-30 03:59:23,194 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:23,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 66 events. 2/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-08-30 03:59:23,197 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 67 transitions, 142 flow [2023-08-30 03:59:23,200 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:23,202 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:59:23,209 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:23,210 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:23,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:23,220 INFO L130 PetriNetUnfolder]: 2/62 cut-off events. [2023-08-30 03:59:23,220 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:23,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 62 events. 2/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 35 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-08-30 03:59:23,221 INFO L119 LiptonReduction]: Number of co-enabled transitions 352 [2023-08-30 03:59:26,052 INFO L134 LiptonReduction]: Checked pairs total: 637 [2023-08-30 03:59:26,053 INFO L136 LiptonReduction]: Total number of compositions: 64 [2023-08-30 03:59:26,062 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:59:26,066 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;@62ed911, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:59:26,066 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-30 03:59:26,067 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 03:59:26,067 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:59:26,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:59:26,068 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:59:26,068 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:59:26,071 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:59:26,071 INFO L85 PathProgramCache]: Analyzing trace with hash 261, now seen corresponding path program 1 times [2023-08-30 03:59:26,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 03:59:26,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61836985] [2023-08-30 03:59:26,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:59:26,079 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 03:59:26,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 03:59:26,082 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 03:59:26,116 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 03:59:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:59:26,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-08-30 03:59:26,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 03:59:26,129 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 03:59:26,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 03:59:26,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-30 03:59:26,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [61836985] [2023-08-30 03:59:26,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [61836985] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:59:26,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:59:26,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:59:26,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111513134] [2023-08-30 03:59:26,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:59:26,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:59:26,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-30 03:59:26,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:59:26,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:59:26,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 131 [2023-08-30 03:59:26,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 13 transitions, 32 flow. Second operand has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 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 03:59:26,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:59:26,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 131 [2023-08-30 03:59:26,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:59:26,211 INFO L130 PetriNetUnfolder]: 12/35 cut-off events. [2023-08-30 03:59:26,211 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:26,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 35 events. 12/35 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 88 event pairs, 12 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 62. Up to 36 conditions per place. [2023-08-30 03:59:26,213 INFO L137 encePairwiseOnDemand]: 129/131 looper letters, 11 selfloop transitions, 0 changer transitions 0/11 dead transitions. [2023-08-30 03:59:26,213 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 11 transitions, 50 flow [2023-08-30 03:59:26,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:59:26,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:59:26,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 139 transitions. [2023-08-30 03:59:26,229 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5305343511450382 [2023-08-30 03:59:26,232 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 139 transitions. [2023-08-30 03:59:26,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 139 transitions. [2023-08-30 03:59:26,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:59:26,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 139 transitions. [2023-08-30 03:59:26,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 69.5) internal successors, (139), 2 states have internal predecessors, (139), 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 03:59:26,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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 03:59:26,247 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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 03:59:26,248 INFO L175 Difference]: Start difference. First operand has 17 places, 13 transitions, 32 flow. Second operand 2 states and 139 transitions. [2023-08-30 03:59:26,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 11 transitions, 50 flow [2023-08-30 03:59:26,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 11 transitions, 46 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:59:26,251 INFO L231 Difference]: Finished difference. Result has 14 places, 11 transitions, 24 flow [2023-08-30 03:59:26,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=24, PETRI_PLACES=14, PETRI_TRANSITIONS=11} [2023-08-30 03:59:26,254 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, -3 predicate places. [2023-08-30 03:59:26,267 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 11 transitions, 24 flow [2023-08-30 03:59:26,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 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 03:59:26,267 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:59:26,267 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 03:59:26,276 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 03:59:26,468 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 03:59:26,468 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:59:26,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:59:26,469 INFO L85 PathProgramCache]: Analyzing trace with hash 255234, now seen corresponding path program 1 times [2023-08-30 03:59:26,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 03:59:26,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [874022679] [2023-08-30 03:59:26,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:59:26,470 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 03:59:26,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 03:59:26,471 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 03:59:26,473 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 03:59:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:59:26,515 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 03:59:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:59:26,551 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-08-30 03:59:26,564 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 03:59:26,565 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2023-08-30 03:59:26,566 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2023-08-30 03:59:26,567 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2023-08-30 03:59:26,567 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2023-08-30 03:59:26,567 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2023-08-30 03:59:26,567 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2023-08-30 03:59:26,567 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2023-08-30 03:59:26,568 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2023-08-30 03:59:26,575 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 03:59:26,774 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 03:59:26,774 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 03:59:26,778 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:59:26,778 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:59:26,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:59:26 BasicIcfg [2023-08-30 03:59:26,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:59:26,793 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:59:26,793 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:59:26,793 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:59:26,793 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:23" (3/4) ... [2023-08-30 03:59:26,796 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-30 03:59:26,797 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:59:26,802 INFO L158 Benchmark]: Toolchain (without parser) took 4556.18ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 38.4MB in the beginning and 44.9MB in the end (delta: -6.5MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2023-08-30 03:59:26,804 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 50.3MB. Free memory was 29.9MB in the beginning and 29.8MB in the end (delta: 32.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:26,804 INFO L158 Benchmark]: CACSL2BoogieTranslator took 418.10ms. Allocated memory is still 60.8MB. Free memory was 38.0MB in the beginning and 35.0MB in the end (delta: 3.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-30 03:59:26,805 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.60ms. Allocated memory is still 60.8MB. Free memory was 35.0MB in the beginning and 32.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:59:26,805 INFO L158 Benchmark]: Boogie Preprocessor took 24.79ms. Allocated memory is still 60.8MB. Free memory was 32.9MB in the beginning and 31.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:26,806 INFO L158 Benchmark]: RCFGBuilder took 355.14ms. Allocated memory is still 60.8MB. Free memory was 31.3MB in the beginning and 33.2MB in the end (delta: -1.9MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2023-08-30 03:59:26,808 INFO L158 Benchmark]: TraceAbstraction took 3712.44ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 32.7MB in the beginning and 45.8MB in the end (delta: -13.1MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2023-08-30 03:59:26,808 INFO L158 Benchmark]: Witness Printer took 3.86ms. Allocated memory is still 79.7MB. Free memory was 45.5MB in the beginning and 44.9MB in the end (delta: 600.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:59:26,812 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 50.3MB. Free memory was 29.9MB in the beginning and 29.8MB in the end (delta: 32.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 418.10ms. Allocated memory is still 60.8MB. Free memory was 38.0MB in the beginning and 35.0MB in the end (delta: 3.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.60ms. Allocated memory is still 60.8MB. Free memory was 35.0MB in the beginning and 32.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.79ms. Allocated memory is still 60.8MB. Free memory was 32.9MB in the beginning and 31.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 355.14ms. Allocated memory is still 60.8MB. Free memory was 31.3MB in the beginning and 33.2MB in the end (delta: -1.9MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3712.44ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 32.7MB in the beginning and 45.8MB in the end (delta: -13.1MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Witness Printer took 3.86ms. Allocated memory is still 79.7MB. Free memory was 45.5MB in the beginning and 44.9MB in the end (delta: 600.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 64 PlacesBefore, 17 PlacesAfterwards, 62 TransitionsBefore, 13 TransitionsAfterwards, 352 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 64 TotalNumberOfCompositions, 637 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 422, independent: 368, independent conditional: 0, independent unconditional: 368, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 226, independent: 208, independent conditional: 0, independent unconditional: 208, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 422, independent: 160, independent conditional: 0, independent unconditional: 160, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 226, unknown conditional: 0, unknown unconditional: 226] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, 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: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={7:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(!(t == 0)) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - 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: 696]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 698]: 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, 88 locations, 8 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: 3.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 03:59:26,836 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