./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_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_19-publish-precision_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 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 --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 03:59:40,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:59:40,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:59:40,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:59:40,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:59:40,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:59:40,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:59:40,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:59:40,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:59:40,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:59:40,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:59:40,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:59:40,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:59:40,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:59:40,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:59:40,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:59:40,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:59:40,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:59:40,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:59:40,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:59:40,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:59:40,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:59:40,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:59:40,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:59:40,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:59:40,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:59:40,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:59:40,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:59:40,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:59:40,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:59:40,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:59:40,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:59:40,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:59:40,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:59:40,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:59:40,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:59:40,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:59:40,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:59:40,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:59:40,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:59:40,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:59:40,880 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:59:40,909 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:59:40,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:59:40,910 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:59:40,911 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:59:40,912 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:59:40,912 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:59:40,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:59:40,912 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:59:40,913 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:59:40,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:59:40,914 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:59:40,914 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:59:40,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:59:40,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:59:40,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:59:40,915 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:59:40,915 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:59:40,915 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:59:40,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:59:40,915 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:59:40,916 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:59:40,916 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:59:40,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:59:40,916 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:59:40,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:59:40,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:59:40,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:59:40,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:59:40,917 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:59:40,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:59:40,918 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:59:40,918 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:59:40,918 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:59:40,918 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:59:40,918 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:59:41,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:59:41,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:59:41,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:59:41,241 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:59:41,242 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:59:41,243 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2023-08-30 03:59:42,354 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:59:42,656 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:59:42,657 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2023-08-30 03:59:42,672 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbc978aea/ce957562644c41be9c0c05f4a71715c9/FLAG4d0d10383 [2023-08-30 03:59:42,684 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbc978aea/ce957562644c41be9c0c05f4a71715c9 [2023-08-30 03:59:42,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:59:42,687 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:59:42,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:59:42,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:59:42,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:59:42,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:59:42" (1/1) ... [2023-08-30 03:59:42,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651c1028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:42, skipping insertion in model container [2023-08-30 03:59:42,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:59:42" (1/1) ... [2023-08-30 03:59:42,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:59:42,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:59:42,915 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i[1103,1116] [2023-08-30 03:59:43,074 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:59:43,088 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:59:43,102 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_19-publish-precision_unknown_1_neg.i[1103,1116] [2023-08-30 03:59:43,122 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:59:43,162 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:59:43,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:43 WrapperNode [2023-08-30 03:59:43,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:59:43,164 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:59:43,164 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:59:43,164 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:59:43,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:43" (1/1) ... [2023-08-30 03:59:43,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:43" (1/1) ... [2023-08-30 03:59:43,225 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2023-08-30 03:59:43,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:59:43,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:59:43,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:59:43,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:59:43,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:43" (1/1) ... [2023-08-30 03:59:43,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:43" (1/1) ... [2023-08-30 03:59:43,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:43" (1/1) ... [2023-08-30 03:59:43,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:43" (1/1) ... [2023-08-30 03:59:43,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:43" (1/1) ... [2023-08-30 03:59:43,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:43" (1/1) ... [2023-08-30 03:59:43,256 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:43" (1/1) ... [2023-08-30 03:59:43,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:43" (1/1) ... [2023-08-30 03:59:43,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:59:43,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:59:43,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:59:43,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:59:43,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:43" (1/1) ... [2023-08-30 03:59:43,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:59:43,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:59:43,298 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 03:59:43,323 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 03:59:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 03:59:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:59:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 03:59:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:59:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:59:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 03:59:43,342 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 03:59:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:59:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 03:59:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:59:43,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:59:43,343 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 03:59:43,529 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:59:43,530 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:59:43,715 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:59:43,721 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:59:43,721 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:59:43,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:43 BoogieIcfgContainer [2023-08-30 03:59:43,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:59:43,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:59:43,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:59:43,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:59:43,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:59:42" (1/3) ... [2023-08-30 03:59:43,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8016e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:59:43, skipping insertion in model container [2023-08-30 03:59:43,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:43" (2/3) ... [2023-08-30 03:59:43,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8016e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:59:43, skipping insertion in model container [2023-08-30 03:59:43,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:43" (3/3) ... [2023-08-30 03:59:43,730 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_neg.i [2023-08-30 03:59:43,747 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:59:43,747 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 03:59:43,747 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:59:43,817 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 03:59:43,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 73 transitions, 154 flow [2023-08-30 03:59:43,910 INFO L130 PetriNetUnfolder]: 1/72 cut-off events. [2023-08-30 03:59:43,910 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:43,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 72 events. 1/72 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-08-30 03:59:43,914 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 73 transitions, 154 flow [2023-08-30 03:59:43,919 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 68 transitions, 142 flow [2023-08-30 03:59:43,923 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:59:43,935 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 68 transitions, 142 flow [2023-08-30 03:59:43,939 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 68 transitions, 142 flow [2023-08-30 03:59:43,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 68 transitions, 142 flow [2023-08-30 03:59:43,969 INFO L130 PetriNetUnfolder]: 1/68 cut-off events. [2023-08-30 03:59:43,969 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:43,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 68 events. 1/68 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-08-30 03:59:43,970 INFO L119 LiptonReduction]: Number of co-enabled transitions 448 [2023-08-30 03:59:46,799 INFO L134 LiptonReduction]: Checked pairs total: 1696 [2023-08-30 03:59:46,800 INFO L136 LiptonReduction]: Total number of compositions: 59 [2023-08-30 03:59:46,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:59:46,818 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;@68650c60, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:59:46,819 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-30 03:59:46,820 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 03:59:46,820 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:59:46,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:59:46,821 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:59:46,822 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-08-30 03:59:46,826 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:59:46,826 INFO L85 PathProgramCache]: Analyzing trace with hash 257, now seen corresponding path program 1 times [2023-08-30 03:59:46,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:59:46,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601992735] [2023-08-30 03:59:46,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:59:46,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:59:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:59:46,922 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 03:59:46,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:59:46,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601992735] [2023-08-30 03:59:46,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601992735] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:59:46,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:59:46,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:59:46,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023018616] [2023-08-30 03:59:46,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:59:46,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:59:46,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:59:46,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:59:46,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:59:46,955 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 132 [2023-08-30 03:59:46,957 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 46 flow. Second operand has 2 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 03:59:46,965 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:59:46,966 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 132 [2023-08-30 03:59:46,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:59:47,011 INFO L130 PetriNetUnfolder]: 24/78 cut-off events. [2023-08-30 03:59:47,012 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:47,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 78 events. 24/78 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 236 event pairs, 24 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 132. Up to 63 conditions per place. [2023-08-30 03:59:47,014 INFO L137 encePairwiseOnDemand]: 130/132 looper letters, 14 selfloop transitions, 0 changer transitions 0/18 dead transitions. [2023-08-30 03:59:47,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 18 transitions, 70 flow [2023-08-30 03:59:47,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:59:47,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:59:47,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 154 transitions. [2023-08-30 03:59:47,024 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2023-08-30 03:59:47,025 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 154 transitions. [2023-08-30 03:59:47,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 154 transitions. [2023-08-30 03:59:47,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:59:47,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 154 transitions. [2023-08-30 03:59:47,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:59:47,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 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 03:59:47,034 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 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 03:59:47,036 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 46 flow. Second operand 2 states and 154 transitions. [2023-08-30 03:59:47,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 18 transitions, 70 flow [2023-08-30 03:59:47,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 66 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:59:47,039 INFO L231 Difference]: Finished difference. Result has 21 places, 18 transitions, 38 flow [2023-08-30 03:59:47,041 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=38, PETRI_PLACES=21, PETRI_TRANSITIONS=18} [2023-08-30 03:59:47,043 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -3 predicate places. [2023-08-30 03:59:47,043 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 18 transitions, 38 flow [2023-08-30 03:59:47,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 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 03:59:47,044 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:59:47,044 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 03:59:47,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:59:47,044 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-08-30 03:59:47,045 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:59:47,045 INFO L85 PathProgramCache]: Analyzing trace with hash 7792683, now seen corresponding path program 1 times [2023-08-30 03:59:47,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:59:47,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044153826] [2023-08-30 03:59:47,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:59:47,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:59:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:59:47,081 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 03:59:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:59:47,115 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 03:59:47,115 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 03:59:47,116 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2023-08-30 03:59:47,118 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-08-30 03:59:47,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-08-30 03:59:47,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-08-30 03:59:47,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-08-30 03:59:47,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2023-08-30 03:59:47,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2023-08-30 03:59:47,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:59:47,120 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 03:59:47,123 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:59:47,123 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:59:47,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:59:47 BasicIcfg [2023-08-30 03:59:47,138 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:59:47,139 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:59:47,139 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:59:47,139 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:59:47,139 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:43" (3/4) ... [2023-08-30 03:59:47,142 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-30 03:59:47,142 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:59:47,143 INFO L158 Benchmark]: Toolchain (without parser) took 4454.81ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 56.7MB in the beginning and 79.4MB in the end (delta: -22.7MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2023-08-30 03:59:47,143 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:47,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 472.53ms. Allocated memory is still 79.7MB. Free memory was 56.5MB in the beginning and 58.4MB in the end (delta: -1.9MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2023-08-30 03:59:47,144 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.69ms. Allocated memory is still 79.7MB. Free memory was 58.1MB in the beginning and 56.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:59:47,144 INFO L158 Benchmark]: Boogie Preprocessor took 39.98ms. Allocated memory is still 79.7MB. Free memory was 56.3MB in the beginning and 54.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:59:47,145 INFO L158 Benchmark]: RCFGBuilder took 455.07ms. Allocated memory is still 79.7MB. Free memory was 54.8MB in the beginning and 41.5MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 03:59:47,145 INFO L158 Benchmark]: TraceAbstraction took 3412.94ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 40.9MB in the beginning and 79.4MB in the end (delta: -38.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:47,145 INFO L158 Benchmark]: Witness Printer took 3.04ms. Allocated memory is still 117.4MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:47,148 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 58.7MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 472.53ms. Allocated memory is still 79.7MB. Free memory was 56.5MB in the beginning and 58.4MB in the end (delta: -1.9MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.69ms. Allocated memory is still 79.7MB. Free memory was 58.1MB in the beginning and 56.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.98ms. Allocated memory is still 79.7MB. Free memory was 56.3MB in the beginning and 54.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 455.07ms. Allocated memory is still 79.7MB. Free memory was 54.8MB in the beginning and 41.5MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3412.94ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 40.9MB in the beginning and 79.4MB in the end (delta: -38.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.04ms. Allocated memory is still 117.4MB. Free memory is still 79.4MB. 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: 2.9s, 71 PlacesBefore, 24 PlacesAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 448 CoEnabledTransitionPairs, 7 FixpointIterations, 36 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 59 TotalNumberOfCompositions, 1696 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 778, independent: 608, independent conditional: 0, independent unconditional: 608, dependent: 170, dependent conditional: 0, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 259, independent: 227, independent conditional: 0, independent unconditional: 227, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 778, independent: 381, independent conditional: 0, independent unconditional: 381, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 259, unknown conditional: 0, unknown unconditional: 259] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, 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: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L699] CALL 0 __VERIFIER_assert(!(glob1 == 0)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] - 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: 695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: 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, 7 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: 3.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, 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, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 14 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=46occurred 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, 5 NumberOfCodeBlocks, 5 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 03:59:47,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_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 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 --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 03:59:49,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:59:49,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:59:49,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:59:49,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:59:49,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:59:49,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:59:49,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:59:49,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:59:49,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:59:49,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:59:49,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:59:49,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:59:49,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:59:49,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:59:49,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:59:49,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:59:49,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:59:49,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:59:49,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:59:49,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:59:49,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:59:49,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:59:49,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:59:49,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:59:49,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:59:49,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:59:49,108 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:59:49,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:59:49,109 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:59:49,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:59:49,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:59:49,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:59:49,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:59:49,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:59:49,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:59:49,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:59:49,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:59:49,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:59:49,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:59:49,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:59:49,118 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-08-30 03:59:49,139 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:59:49,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:59:49,142 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:59:49,142 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:59:49,143 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:59:49,143 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:59:49,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:59:49,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:59:49,144 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:59:49,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:59:49,145 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:59:49,145 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:59:49,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:59:49,146 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:59:49,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:59:49,146 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:59:49,146 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:59:49,146 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:59:49,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:59:49,147 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:59:49,147 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-08-30 03:59:49,147 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-08-30 03:59:49,147 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:59:49,148 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:59:49,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:59:49,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:59:49,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:59:49,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:59:49,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:59:49,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:59:49,149 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-08-30 03:59:49,149 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-08-30 03:59:49,150 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:59:49,150 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:59:49,150 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:59:49,150 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-08-30 03:59:49,150 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:59:49,150 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:59:49,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:59:49,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:59:49,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:59:49,500 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:59:49,501 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:59:49,502 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2023-08-30 03:59:50,765 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:59:51,029 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:59:51,029 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2023-08-30 03:59:51,040 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/577889431/23c26dffa55045bda92ffe3763976938/FLAG87eccd865 [2023-08-30 03:59:51,053 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/577889431/23c26dffa55045bda92ffe3763976938 [2023-08-30 03:59:51,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:59:51,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:59:51,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:59:51,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:59:51,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:59:51,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:59:51" (1/1) ... [2023-08-30 03:59:51,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cbc300c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:51, skipping insertion in model container [2023-08-30 03:59:51,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:59:51" (1/1) ... [2023-08-30 03:59:51,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:59:51,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:59:51,213 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_19-publish-precision_unknown_1_neg.i[1103,1116] [2023-08-30 03:59:51,344 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:59:51,359 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:59:51,378 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_19-publish-precision_unknown_1_neg.i[1103,1116] [2023-08-30 03:59:51,428 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:59:51,520 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:59:51,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:51 WrapperNode [2023-08-30 03:59:51,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:59:51,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:59:51,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:59:51,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:59:51,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:51" (1/1) ... [2023-08-30 03:59:51,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:51" (1/1) ... [2023-08-30 03:59:51,583 INFO L138 Inliner]: procedures = 166, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2023-08-30 03:59:51,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:59:51,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:59:51,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:59:51,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:59:51,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:51" (1/1) ... [2023-08-30 03:59:51,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:51" (1/1) ... [2023-08-30 03:59:51,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:51" (1/1) ... [2023-08-30 03:59:51,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:51" (1/1) ... [2023-08-30 03:59:51,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:51" (1/1) ... [2023-08-30 03:59:51,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:51" (1/1) ... [2023-08-30 03:59:51,625 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:51" (1/1) ... [2023-08-30 03:59:51,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:51" (1/1) ... [2023-08-30 03:59:51,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:59:51,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:59:51,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:59:51,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:59:51,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:51" (1/1) ... [2023-08-30 03:59:51,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:59:51,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:59:51,676 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 03:59:51,686 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 03:59:51,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-08-30 03:59:51,710 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 03:59:51,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:59:51,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:59:51,711 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 03:59:51,711 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 03:59:51,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:59:51,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-08-30 03:59:51,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-08-30 03:59:51,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-08-30 03:59:51,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:59:51,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:59:51,713 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 03:59:51,905 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:59:51,907 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:59:52,112 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:59:52,120 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:59:52,121 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:59:52,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:52 BoogieIcfgContainer [2023-08-30 03:59:52,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:59:52,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:59:52,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:59:52,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:59:52,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:59:51" (1/3) ... [2023-08-30 03:59:52,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a497b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:59:52, skipping insertion in model container [2023-08-30 03:59:52,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:51" (2/3) ... [2023-08-30 03:59:52,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a497b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:59:52, skipping insertion in model container [2023-08-30 03:59:52,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:52" (3/3) ... [2023-08-30 03:59:52,133 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_neg.i [2023-08-30 03:59:52,148 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:59:52,148 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 03:59:52,148 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:59:52,205 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 03:59:52,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 74 transitions, 156 flow [2023-08-30 03:59:52,272 INFO L130 PetriNetUnfolder]: 1/73 cut-off events. [2023-08-30 03:59:52,272 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:52,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 73 events. 1/73 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-08-30 03:59:52,276 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 74 transitions, 156 flow [2023-08-30 03:59:52,279 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 69 transitions, 144 flow [2023-08-30 03:59:52,282 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:59:52,292 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 69 transitions, 144 flow [2023-08-30 03:59:52,295 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 69 transitions, 144 flow [2023-08-30 03:59:52,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 69 transitions, 144 flow [2023-08-30 03:59:52,316 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2023-08-30 03:59:52,318 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:52,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 69 events. 1/69 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-08-30 03:59:52,320 INFO L119 LiptonReduction]: Number of co-enabled transitions 448 [2023-08-30 03:59:57,441 INFO L134 LiptonReduction]: Checked pairs total: 1818 [2023-08-30 03:59:57,442 INFO L136 LiptonReduction]: Total number of compositions: 59 [2023-08-30 03:59:57,459 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:59:57,470 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;@6cc15d7e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:59:57,471 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-30 03:59:57,473 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 03:59:57,473 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:59:57,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:59:57,474 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:59:57,475 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-08-30 03:59:57,480 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:59:57,481 INFO L85 PathProgramCache]: Analyzing trace with hash 257, now seen corresponding path program 1 times [2023-08-30 03:59:57,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 03:59:57,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651849214] [2023-08-30 03:59:57,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:59:57,496 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 03:59:57,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 03:59:57,501 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 03:59:57,512 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 03:59:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:59:57,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-08-30 03:59:57,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 03:59:57,587 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 03:59:57,588 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 03:59:57,589 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-30 03:59:57,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651849214] [2023-08-30 03:59:57,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651849214] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:59:57,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:59:57,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:59:57,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031504783] [2023-08-30 03:59:57,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:59:57,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:59:57,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-30 03:59:57,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:59:57,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:59:57,633 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 133 [2023-08-30 03:59:57,635 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 52 flow. Second operand has 2 states, 2 states have (on average 70.5) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:59:57,635 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:59:57,636 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 133 [2023-08-30 03:59:57,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:59:57,713 INFO L130 PetriNetUnfolder]: 16/75 cut-off events. [2023-08-30 03:59:57,713 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-30 03:59:57,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 75 events. 16/75 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 230 event pairs, 16 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 111. Up to 45 conditions per place. [2023-08-30 03:59:57,715 INFO L137 encePairwiseOnDemand]: 130/133 looper letters, 12 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2023-08-30 03:59:57,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 68 flow [2023-08-30 03:59:57,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:59:57,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:59:57,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 155 transitions. [2023-08-30 03:59:57,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5827067669172933 [2023-08-30 03:59:57,728 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 155 transitions. [2023-08-30 03:59:57,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 155 transitions. [2023-08-30 03:59:57,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:59:57,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 155 transitions. [2023-08-30 03:59:57,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 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 03:59:57,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 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 03:59:57,766 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 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 03:59:57,767 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 52 flow. Second operand 2 states and 155 transitions. [2023-08-30 03:59:57,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 68 flow [2023-08-30 03:59:57,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 19 transitions, 64 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:59:57,771 INFO L231 Difference]: Finished difference. Result has 22 places, 19 transitions, 40 flow [2023-08-30 03:59:57,773 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=22, PETRI_TRANSITIONS=19} [2023-08-30 03:59:57,790 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -4 predicate places. [2023-08-30 03:59:57,790 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 19 transitions, 40 flow [2023-08-30 03:59:57,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 70.5) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:59:57,791 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:59:57,791 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 03:59:57,815 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 03:59:57,999 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 03:59:58,000 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-08-30 03:59:58,000 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:59:58,000 INFO L85 PathProgramCache]: Analyzing trace with hash 7854099, now seen corresponding path program 1 times [2023-08-30 03:59:58,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 03:59:58,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488202839] [2023-08-30 03:59:58,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:59:58,001 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 03:59:58,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 03:59:58,009 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 03:59:58,012 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 03:59:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:59:58,079 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 03:59:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:59:58,127 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-08-30 03:59:58,128 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 03:59:58,130 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2023-08-30 03:59:58,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-08-30 03:59:58,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-08-30 03:59:58,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-08-30 03:59:58,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-08-30 03:59:58,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2023-08-30 03:59:58,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2023-08-30 03:59:58,148 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 03:59:58,343 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 03:59:58,344 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 03:59:58,348 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:59:58,348 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:59:58,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:59:58 BasicIcfg [2023-08-30 03:59:58,365 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:59:58,365 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:59:58,365 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:59:58,366 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:59:58,366 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:52" (3/4) ... [2023-08-30 03:59:58,368 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-30 03:59:58,368 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:59:58,369 INFO L158 Benchmark]: Toolchain (without parser) took 7312.26ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 60.3MB in the beginning and 69.3MB in the end (delta: -9.0MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2023-08-30 03:59:58,369 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 58.7MB. Free memory was 36.5MB in the beginning and 36.4MB in the end (delta: 48.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:58,370 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.35ms. Allocated memory is still 83.9MB. Free memory was 60.1MB in the beginning and 60.7MB in the end (delta: -577.9kB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2023-08-30 03:59:58,370 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.20ms. Allocated memory is still 83.9MB. Free memory was 60.3MB in the beginning and 58.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:58,371 INFO L158 Benchmark]: Boogie Preprocessor took 50.94ms. Allocated memory is still 83.9MB. Free memory was 58.6MB in the beginning and 56.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:59:58,371 INFO L158 Benchmark]: RCFGBuilder took 486.40ms. Allocated memory is still 83.9MB. Free memory was 56.7MB in the beginning and 42.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 03:59:58,371 INFO L158 Benchmark]: TraceAbstraction took 6238.98ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 41.1MB in the beginning and 70.2MB in the end (delta: -29.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:58,372 INFO L158 Benchmark]: Witness Printer took 3.13ms. Allocated memory is still 100.7MB. Free memory was 70.2MB in the beginning and 69.3MB in the end (delta: 957.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:58,375 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 58.7MB. Free memory was 36.5MB in the beginning and 36.4MB in the end (delta: 48.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 464.35ms. Allocated memory is still 83.9MB. Free memory was 60.1MB in the beginning and 60.7MB in the end (delta: -577.9kB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.20ms. Allocated memory is still 83.9MB. Free memory was 60.3MB in the beginning and 58.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.94ms. Allocated memory is still 83.9MB. Free memory was 58.6MB in the beginning and 56.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 486.40ms. Allocated memory is still 83.9MB. Free memory was 56.7MB in the beginning and 42.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6238.98ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 41.1MB in the beginning and 70.2MB in the end (delta: -29.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.13ms. Allocated memory is still 100.7MB. Free memory was 70.2MB in the beginning and 69.3MB in the end (delta: 957.7kB). 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: 5.1s, 72 PlacesBefore, 26 PlacesAfterwards, 69 TransitionsBefore, 23 TransitionsAfterwards, 448 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 59 TotalNumberOfCompositions, 1818 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1025, independent: 868, independent conditional: 0, independent unconditional: 868, dependent: 157, dependent conditional: 0, dependent unconditional: 157, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 250, independent: 229, independent conditional: 0, independent unconditional: 229, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1025, independent: 639, independent conditional: 0, independent unconditional: 639, dependent: 136, dependent conditional: 0, dependent unconditional: 136, unknown: 250, unknown conditional: 0, unknown unconditional: 250] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 34, Positive conditional cache size: 0, Positive unconditional cache size: 34, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, 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: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={7:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=4] [L699] CALL 0 __VERIFIER_assert(!(glob1 == 0)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] - 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: 695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: 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, 90 locations, 7 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: 6.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s 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, 12 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 12 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=52occurred 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, 5 NumberOfCodeBlocks, 5 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 03:59:58,395 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