./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 BEFORE --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 BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 00:23:38,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 00:23:38,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 00:23:38,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 00:23:38,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 00:23:38,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 00:23:38,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 00:23:38,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 00:23:38,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 00:23:38,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 00:23:38,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 00:23:38,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 00:23:38,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 00:23:38,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 00:23:38,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 00:23:38,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 00:23:38,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 00:23:38,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 00:23:38,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 00:23:38,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 00:23:38,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 00:23:38,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 00:23:38,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 00:23:38,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 00:23:38,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 00:23:38,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 00:23:38,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 00:23:38,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 00:23:38,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 00:23:38,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 00:23:38,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 00:23:38,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 00:23:38,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 00:23:38,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 00:23:38,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 00:23:38,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 00:23:38,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 00:23:38,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 00:23:38,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 00:23:38,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 00:23:38,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 00:23:38,385 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-09-01 00:23:38,419 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 00:23:38,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 00:23:38,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 00:23:38,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 00:23:38,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 00:23:38,421 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 00:23:38,422 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 00:23:38,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 00:23:38,422 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 00:23:38,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 00:23:38,424 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 00:23:38,424 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 00:23:38,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 00:23:38,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 00:23:38,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 00:23:38,425 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-09-01 00:23:38,425 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-09-01 00:23:38,425 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-09-01 00:23:38,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 00:23:38,426 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-09-01 00:23:38,426 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 00:23:38,430 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 00:23:38,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 00:23:38,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 00:23:38,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 00:23:38,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:23:38,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 00:23:38,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 00:23:38,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 00:23:38,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 00:23:38,432 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 00:23:38,432 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 00:23:38,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 00:23:38,433 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 00:23:38,433 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 00:23:38,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 00:23:38,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 00:23:38,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 00:23:38,777 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 00:23:38,777 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 00:23:38,778 INFO L432 ainManager$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 [2023-09-01 00:23:39,996 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 00:23:40,220 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 00:23:40,220 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2023-09-01 00:23:40,243 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1bb29a89/cc51c1d884f348b69dc2624df48f9fad/FLAGd89fc3162 [2023-09-01 00:23:40,255 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1bb29a89/cc51c1d884f348b69dc2624df48f9fad [2023-09-01 00:23:40,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 00:23:40,259 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 00:23:40,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 00:23:40,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 00:23:40,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 00:23:40,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:23:40" (1/1) ... [2023-09-01 00:23:40,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fd65d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:40, skipping insertion in model container [2023-09-01 00:23:40,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:23:40" (1/1) ... [2023-09-01 00:23:40,269 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 00:23:40,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 00:23:40,465 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] [2023-09-01 00:23:40,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:23:40,630 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 00:23:40,643 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] [2023-09-01 00:23:40,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:23:40,747 INFO L208 MainTranslator]: Completed translation [2023-09-01 00:23:40,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:40 WrapperNode [2023-09-01 00:23:40,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 00:23:40,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 00:23:40,749 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 00:23:40,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 00:23:40,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:40" (1/1) ... [2023-09-01 00:23:40,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:40" (1/1) ... [2023-09-01 00:23:40,790 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2023-09-01 00:23:40,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 00:23:40,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 00:23:40,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 00:23:40,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 00:23:40,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:40" (1/1) ... [2023-09-01 00:23:40,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:40" (1/1) ... [2023-09-01 00:23:40,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:40" (1/1) ... [2023-09-01 00:23:40,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:40" (1/1) ... [2023-09-01 00:23:40,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:40" (1/1) ... [2023-09-01 00:23:40,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:40" (1/1) ... [2023-09-01 00:23:40,806 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:40" (1/1) ... [2023-09-01 00:23:40,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:40" (1/1) ... [2023-09-01 00:23:40,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 00:23:40,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 00:23:40,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 00:23:40,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 00:23:40,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:40" (1/1) ... [2023-09-01 00:23:40,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:23:40,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 00:23:40,838 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) [2023-09-01 00:23:40,844 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 [2023-09-01 00:23:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 00:23:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 00:23:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 00:23:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 00:23:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 00:23:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 00:23:40,864 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 00:23:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 00:23:40,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 00:23:40,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 00:23:40,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 00:23:40,866 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 00:23:41,013 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 00:23:41,015 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 00:23:41,174 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 00:23:41,179 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 00:23:41,179 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 00:23:41,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:23:41 BoogieIcfgContainer [2023-09-01 00:23:41,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 00:23:41,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 00:23:41,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 00:23:41,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 00:23:41,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 12:23:40" (1/3) ... [2023-09-01 00:23:41,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aa999da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:23:41, skipping insertion in model container [2023-09-01 00:23:41,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:40" (2/3) ... [2023-09-01 00:23:41,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aa999da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:23:41, skipping insertion in model container [2023-09-01 00:23:41,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:23:41" (3/3) ... [2023-09-01 00:23:41,187 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_neg.i [2023-09-01 00:23:41,202 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 00:23:41,202 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-09-01 00:23:41,202 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 00:23:41,247 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 00:23:41,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 73 transitions, 154 flow [2023-09-01 00:23:41,315 INFO L130 PetriNetUnfolder]: 1/72 cut-off events. [2023-09-01 00:23:41,318 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:23:41,321 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. [2023-09-01 00:23:41,321 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 73 transitions, 154 flow [2023-09-01 00:23:41,326 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 68 transitions, 142 flow [2023-09-01 00:23:41,330 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 00:23:41,336 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 68 transitions, 142 flow [2023-09-01 00:23:41,339 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 68 transitions, 142 flow [2023-09-01 00:23:41,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 68 transitions, 142 flow [2023-09-01 00:23:41,354 INFO L130 PetriNetUnfolder]: 1/68 cut-off events. [2023-09-01 00:23:41,355 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:23:41,355 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. [2023-09-01 00:23:41,356 INFO L119 LiptonReduction]: Number of co-enabled transitions 448 [2023-09-01 00:23:43,996 INFO L134 LiptonReduction]: Checked pairs total: 1696 [2023-09-01 00:23:43,997 INFO L136 LiptonReduction]: Total number of compositions: 59 [2023-09-01 00:23:44,009 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 00:23:44,015 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;@7b666d7c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 00:23:44,015 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-09-01 00:23:44,016 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-09-01 00:23:44,016 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:23:44,017 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:23:44,017 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-09-01 00:23:44,017 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)] === [2023-09-01 00:23:44,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:23:44,022 INFO L85 PathProgramCache]: Analyzing trace with hash 257, now seen corresponding path program 1 times [2023-09-01 00:23:44,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:23:44,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290929561] [2023-09-01 00:23:44,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:23:44,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:23:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:23:44,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:23:44,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 00:23:44,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290929561] [2023-09-01 00:23:44,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290929561] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:23:44,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:23:44,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-09-01 00:23:44,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427157261] [2023-09-01 00:23:44,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:23:44,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-01 00:23:44,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 00:23:44,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-01 00:23:44,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-01 00:23:44,166 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 132 [2023-09-01 00:23:44,168 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) [2023-09-01 00:23:44,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:23:44,169 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 132 [2023-09-01 00:23:44,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:23:44,219 INFO L130 PetriNetUnfolder]: 24/78 cut-off events. [2023-09-01 00:23:44,219 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:23:44,220 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. [2023-09-01 00:23:44,221 INFO L137 encePairwiseOnDemand]: 130/132 looper letters, 14 selfloop transitions, 0 changer transitions 0/18 dead transitions. [2023-09-01 00:23:44,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 18 transitions, 70 flow [2023-09-01 00:23:44,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-01 00:23:44,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-09-01 00:23:44,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 154 transitions. [2023-09-01 00:23:44,232 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2023-09-01 00:23:44,233 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 154 transitions. [2023-09-01 00:23:44,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 154 transitions. [2023-09-01 00:23:44,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:23:44,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 154 transitions. [2023-09-01 00:23:44,238 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) [2023-09-01 00:23:44,242 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) [2023-09-01 00:23:44,242 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) [2023-09-01 00:23:44,244 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 46 flow. Second operand 2 states and 154 transitions. [2023-09-01 00:23:44,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 18 transitions, 70 flow [2023-09-01 00:23:44,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 66 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:23:44,247 INFO L231 Difference]: Finished difference. Result has 21 places, 18 transitions, 38 flow [2023-09-01 00:23:44,249 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} [2023-09-01 00:23:44,252 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -3 predicate places. [2023-09-01 00:23:44,252 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 18 transitions, 38 flow [2023-09-01 00:23:44,252 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) [2023-09-01 00:23:44,252 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:23:44,253 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 00:23:44,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 00:23:44,253 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)] === [2023-09-01 00:23:44,254 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:23:44,254 INFO L85 PathProgramCache]: Analyzing trace with hash 7792683, now seen corresponding path program 1 times [2023-09-01 00:23:44,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 00:23:44,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940857765] [2023-09-01 00:23:44,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:23:44,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 00:23:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 00:23:44,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 00:23:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 00:23:44,319 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 00:23:44,320 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 00:23:44,322 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2023-09-01 00:23:44,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-09-01 00:23:44,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-09-01 00:23:44,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-09-01 00:23:44,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-09-01 00:23:44,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2023-09-01 00:23:44,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2023-09-01 00:23:44,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 00:23:44,330 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-09-01 00:23:44,336 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 00:23:44,336 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 00:23:44,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 12:23:44 BasicIcfg [2023-09-01 00:23:44,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 00:23:44,355 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 00:23:44,355 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 00:23:44,355 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 00:23:44,355 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:23:41" (3/4) ... [2023-09-01 00:23:44,358 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-09-01 00:23:44,358 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 00:23:44,359 INFO L158 Benchmark]: Toolchain (without parser) took 4099.66ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 43.9MB in the beginning and 23.9MB in the end (delta: 20.0MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. [2023-09-01 00:23:44,359 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 54.5MB. Free memory was 32.1MB in the beginning and 32.1MB in the end (delta: 34.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:23:44,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 488.15ms. Allocated memory is still 67.1MB. Free memory was 43.7MB in the beginning and 41.4MB in the end (delta: 2.3MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2023-09-01 00:23:44,360 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.62ms. Allocated memory is still 67.1MB. Free memory was 41.1MB in the beginning and 39.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:23:44,360 INFO L158 Benchmark]: Boogie Preprocessor took 18.64ms. Allocated memory is still 67.1MB. Free memory was 39.3MB in the beginning and 38.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 00:23:44,361 INFO L158 Benchmark]: RCFGBuilder took 371.16ms. Allocated memory is still 67.1MB. Free memory was 37.8MB in the beginning and 42.8MB in the end (delta: -5.0MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2023-09-01 00:23:44,361 INFO L158 Benchmark]: TraceAbstraction took 3171.66ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 42.2MB in the beginning and 24.6MB in the end (delta: 17.6MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2023-09-01 00:23:44,362 INFO L158 Benchmark]: Witness Printer took 3.20ms. Allocated memory is still 81.8MB. Free memory was 24.6MB in the beginning and 23.9MB in the end (delta: 683.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:23:44,364 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 54.5MB. Free memory was 32.1MB in the beginning and 32.1MB in the end (delta: 34.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 488.15ms. Allocated memory is still 67.1MB. Free memory was 43.7MB in the beginning and 41.4MB in the end (delta: 2.3MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.62ms. Allocated memory is still 67.1MB. Free memory was 41.1MB in the beginning and 39.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.64ms. Allocated memory is still 67.1MB. Free memory was 39.3MB in the beginning and 38.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 371.16ms. Allocated memory is still 67.1MB. Free memory was 37.8MB in the beginning and 42.8MB in the end (delta: -5.0MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3171.66ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 42.2MB in the beginning and 24.6MB in the end (delta: 17.6MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * Witness Printer took 3.20ms. Allocated memory is still 81.8MB. Free memory was 24.6MB in the beginning and 23.9MB in the end (delta: 683.0kB). 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: 2.7s, 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: 3.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, 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 [2023-09-01 00:23:44,400 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 BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 00:23:46,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 00:23:46,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 00:23:46,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 00:23:46,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 00:23:46,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 00:23:46,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 00:23:46,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 00:23:46,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 00:23:46,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 00:23:46,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 00:23:46,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 00:23:46,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 00:23:46,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 00:23:46,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 00:23:46,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 00:23:46,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 00:23:46,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 00:23:46,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 00:23:46,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 00:23:46,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 00:23:46,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 00:23:46,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 00:23:46,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 00:23:46,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 00:23:46,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 00:23:46,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 00:23:46,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 00:23:46,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 00:23:46,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 00:23:46,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 00:23:46,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 00:23:46,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 00:23:46,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 00:23:46,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 00:23:46,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 00:23:46,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 00:23:46,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 00:23:46,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 00:23:46,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 00:23:46,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 00:23:46,299 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-09-01 00:23:46,319 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 00:23:46,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 00:23:46,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 00:23:46,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 00:23:46,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 00:23:46,321 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 00:23:46,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 00:23:46,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 00:23:46,322 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 00:23:46,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 00:23:46,323 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 00:23:46,323 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 00:23:46,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 00:23:46,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 00:23:46,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 00:23:46,324 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-09-01 00:23:46,324 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-09-01 00:23:46,324 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-09-01 00:23:46,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 00:23:46,325 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-09-01 00:23:46,325 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-09-01 00:23:46,325 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-09-01 00:23:46,325 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 00:23:46,325 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 00:23:46,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 00:23:46,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 00:23:46,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 00:23:46,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:23:46,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 00:23:46,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 00:23:46,327 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-09-01 00:23:46,327 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-09-01 00:23:46,327 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 00:23:46,328 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 00:23:46,328 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 00:23:46,328 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-09-01 00:23:46,328 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 00:23:46,328 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 00:23:46,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 00:23:46,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 00:23:46,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 00:23:46,624 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 00:23:46,625 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 00:23:46,626 INFO L432 ainManager$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 [2023-09-01 00:23:47,757 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 00:23:47,996 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 00:23:47,996 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2023-09-01 00:23:48,009 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67dbc0f77/00e2911748df43ad80d32248f863809d/FLAG07b1de5ed [2023-09-01 00:23:48,024 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67dbc0f77/00e2911748df43ad80d32248f863809d [2023-09-01 00:23:48,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 00:23:48,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 00:23:48,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 00:23:48,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 00:23:48,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 00:23:48,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35ab37f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48, skipping insertion in model container [2023-09-01 00:23:48,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 00:23:48,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 00:23:48,214 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] [2023-09-01 00:23:48,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:23:48,389 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 00:23:48,406 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] [2023-09-01 00:23:48,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 00:23:48,500 INFO L208 MainTranslator]: Completed translation [2023-09-01 00:23:48,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48 WrapperNode [2023-09-01 00:23:48,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 00:23:48,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 00:23:48,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 00:23:48,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 00:23:48,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,542 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,565 INFO L138 Inliner]: procedures = 166, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2023-09-01 00:23:48,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 00:23:48,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 00:23:48,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 00:23:48,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 00:23:48,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,605 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 00:23:48,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 00:23:48,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 00:23:48,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 00:23:48,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (1/1) ... [2023-09-01 00:23:48,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 00:23:48,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 00:23:48,658 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) [2023-09-01 00:23:48,681 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 [2023-09-01 00:23:48,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-09-01 00:23:48,695 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 00:23:48,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 00:23:48,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 00:23:48,697 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 00:23:48,697 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 00:23:48,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 00:23:48,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-09-01 00:23:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-09-01 00:23:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-09-01 00:23:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 00:23:48,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 00:23:48,699 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 00:23:48,895 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 00:23:48,896 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 00:23:49,042 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 00:23:49,048 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 00:23:49,048 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 00:23:49,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:23:49 BoogieIcfgContainer [2023-09-01 00:23:49,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 00:23:49,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 00:23:49,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 00:23:49,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 00:23:49,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 12:23:48" (1/3) ... [2023-09-01 00:23:49,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5759629a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:23:49, skipping insertion in model container [2023-09-01 00:23:49,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:23:48" (2/3) ... [2023-09-01 00:23:49,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5759629a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 12:23:49, skipping insertion in model container [2023-09-01 00:23:49,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:23:49" (3/3) ... [2023-09-01 00:23:49,057 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_neg.i [2023-09-01 00:23:49,072 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 00:23:49,072 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-09-01 00:23:49,072 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 00:23:49,128 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 00:23:49,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 74 transitions, 156 flow [2023-09-01 00:23:49,225 INFO L130 PetriNetUnfolder]: 1/73 cut-off events. [2023-09-01 00:23:49,225 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:23:49,230 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. [2023-09-01 00:23:49,230 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 74 transitions, 156 flow [2023-09-01 00:23:49,235 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 69 transitions, 144 flow [2023-09-01 00:23:49,238 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 00:23:49,251 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 69 transitions, 144 flow [2023-09-01 00:23:49,253 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 69 transitions, 144 flow [2023-09-01 00:23:49,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 69 transitions, 144 flow [2023-09-01 00:23:49,268 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2023-09-01 00:23:49,268 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 00:23:49,269 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. [2023-09-01 00:23:49,269 INFO L119 LiptonReduction]: Number of co-enabled transitions 448 [2023-09-01 00:23:54,484 INFO L134 LiptonReduction]: Checked pairs total: 1818 [2023-09-01 00:23:54,485 INFO L136 LiptonReduction]: Total number of compositions: 59 [2023-09-01 00:23:54,497 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 00:23:54,502 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;@96fcd7e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 00:23:54,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-09-01 00:23:54,504 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-09-01 00:23:54,504 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 00:23:54,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:23:54,505 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-09-01 00:23:54,505 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)] === [2023-09-01 00:23:54,509 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:23:54,510 INFO L85 PathProgramCache]: Analyzing trace with hash 257, now seen corresponding path program 1 times [2023-09-01 00:23:54,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-09-01 00:23:54,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2097519750] [2023-09-01 00:23:54,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:23:54,520 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 [2023-09-01 00:23:54,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-09-01 00:23:54,529 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) [2023-09-01 00:23:54,534 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 [2023-09-01 00:23:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 00:23:54,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-09-01 00:23:54,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 00:23:54,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 00:23:54,585 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 00:23:54,585 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-09-01 00:23:54,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2097519750] [2023-09-01 00:23:54,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2097519750] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 00:23:54,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 00:23:54,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-09-01 00:23:54,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642591359] [2023-09-01 00:23:54,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 00:23:54,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-01 00:23:54,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-09-01 00:23:54,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-01 00:23:54,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-01 00:23:54,624 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 133 [2023-09-01 00:23:54,626 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) [2023-09-01 00:23:54,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 00:23:54,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 133 [2023-09-01 00:23:54,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 00:23:54,714 INFO L130 PetriNetUnfolder]: 16/75 cut-off events. [2023-09-01 00:23:54,714 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-09-01 00:23:54,715 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. [2023-09-01 00:23:54,716 INFO L137 encePairwiseOnDemand]: 130/133 looper letters, 12 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2023-09-01 00:23:54,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 68 flow [2023-09-01 00:23:54,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-01 00:23:54,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-09-01 00:23:54,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 155 transitions. [2023-09-01 00:23:54,726 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5827067669172933 [2023-09-01 00:23:54,727 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 155 transitions. [2023-09-01 00:23:54,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 155 transitions. [2023-09-01 00:23:54,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 00:23:54,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 155 transitions. [2023-09-01 00:23:54,748 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) [2023-09-01 00:23:54,752 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) [2023-09-01 00:23:54,753 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) [2023-09-01 00:23:54,754 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 52 flow. Second operand 2 states and 155 transitions. [2023-09-01 00:23:54,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 68 flow [2023-09-01 00:23:54,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 19 transitions, 64 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 00:23:54,757 INFO L231 Difference]: Finished difference. Result has 22 places, 19 transitions, 40 flow [2023-09-01 00:23:54,758 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} [2023-09-01 00:23:54,761 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -4 predicate places. [2023-09-01 00:23:54,761 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 19 transitions, 40 flow [2023-09-01 00:23:54,761 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) [2023-09-01 00:23:54,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 00:23:54,762 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 00:23:54,784 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 [2023-09-01 00:23:54,962 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 [2023-09-01 00:23:54,963 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)] === [2023-09-01 00:23:54,963 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 00:23:54,964 INFO L85 PathProgramCache]: Analyzing trace with hash 7854099, now seen corresponding path program 1 times [2023-09-01 00:23:54,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-09-01 00:23:54,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244546179] [2023-09-01 00:23:54,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 00:23:54,965 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 [2023-09-01 00:23:54,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-09-01 00:23:54,967 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) [2023-09-01 00:23:54,968 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 [2023-09-01 00:23:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 00:23:55,022 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 00:23:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 00:23:55,072 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-09-01 00:23:55,073 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 00:23:55,075 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2023-09-01 00:23:55,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-09-01 00:23:55,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-09-01 00:23:55,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-09-01 00:23:55,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-09-01 00:23:55,079 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2023-09-01 00:23:55,079 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2023-09-01 00:23:55,091 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 [2023-09-01 00:23:55,285 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 [2023-09-01 00:23:55,286 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-09-01 00:23:55,290 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 00:23:55,290 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 00:23:55,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 12:23:55 BasicIcfg [2023-09-01 00:23:55,307 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 00:23:55,307 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 00:23:55,307 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 00:23:55,307 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 00:23:55,308 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:23:49" (3/4) ... [2023-09-01 00:23:55,309 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-09-01 00:23:55,310 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 00:23:55,310 INFO L158 Benchmark]: Toolchain (without parser) took 7282.18ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 71.1MB in the beginning and 32.9MB in the end (delta: 38.3MB). Peak memory consumption was 56.4MB. Max. memory is 16.1GB. [2023-09-01 00:23:55,311 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 62.9MB. Free memory was 40.6MB in the beginning and 40.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:23:55,311 INFO L158 Benchmark]: CACSL2BoogieTranslator took 472.41ms. Allocated memory is still 92.3MB. Free memory was 71.1MB in the beginning and 50.7MB in the end (delta: 20.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-09-01 00:23:55,312 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.69ms. Allocated memory is still 92.3MB. Free memory was 50.7MB in the beginning and 48.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 00:23:55,312 INFO L158 Benchmark]: Boogie Preprocessor took 48.63ms. Allocated memory is still 92.3MB. Free memory was 48.6MB in the beginning and 46.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 00:23:55,312 INFO L158 Benchmark]: RCFGBuilder took 434.07ms. Allocated memory is still 92.3MB. Free memory was 46.8MB in the beginning and 57.9MB in the end (delta: -11.0MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2023-09-01 00:23:55,313 INFO L158 Benchmark]: TraceAbstraction took 6254.94ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 56.9MB in the beginning and 32.9MB in the end (delta: 24.0MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2023-09-01 00:23:55,313 INFO L158 Benchmark]: Witness Printer took 2.59ms. Allocated memory is still 111.1MB. Free memory is still 32.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 00:23:55,316 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 62.9MB. Free memory was 40.6MB in the beginning and 40.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 472.41ms. Allocated memory is still 92.3MB. Free memory was 71.1MB in the beginning and 50.7MB in the end (delta: 20.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.69ms. Allocated memory is still 92.3MB. Free memory was 50.7MB in the beginning and 48.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.63ms. Allocated memory is still 92.3MB. Free memory was 48.6MB in the beginning and 46.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 434.07ms. Allocated memory is still 92.3MB. Free memory was 46.8MB in the beginning and 57.9MB in the end (delta: -11.0MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. * TraceAbstraction took 6254.94ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 56.9MB in the beginning and 32.9MB in the end (delta: 24.0MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. * Witness Printer took 2.59ms. Allocated memory is still 111.1MB. Free memory is still 32.9MB. 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: 5.2s, 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: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.3s, 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 [2023-09-01 00:23:55,341 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