./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.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 a91542c733a27a18dff97acca49ae580b7929842603ed8a2c1cdbb309e164d67 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 03:59:13,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:59:13,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:59:13,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:59:13,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:59:13,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:59:13,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:59:13,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:59:13,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:59:13,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:59:13,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:59:13,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:59:13,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:59:13,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:59:13,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:59:13,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:59:13,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:59:13,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:59:13,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:59:13,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:59:13,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:59:13,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:59:13,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:59:13,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:59:13,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:59:13,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:59:13,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:59:13,887 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:59:13,887 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:59:13,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:59:13,889 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:59:13,890 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:59:13,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:59:13,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:59:13,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:59:13,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:59:13,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:59:13,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:59:13,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:59:13,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:59:13,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:59:13,897 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 03:59:13,929 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:59:13,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:59:13,931 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:59:13,931 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:59:13,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:59:13,932 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:59:13,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:59:13,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:59:13,933 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:59:13,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:59:13,934 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:59:13,934 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:59:13,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:59:13,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:59:13,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:59:13,935 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:59:13,935 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:59:13,935 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:59:13,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:59:13,936 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:59:13,936 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:59:13,936 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:59:13,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:59:13,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:59:13,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:59:13,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:59:13,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:59:13,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:59:13,938 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 03:59:13,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 03:59:13,938 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:59:13,938 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:59:13,939 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:59:13,939 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:59:13,939 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a91542c733a27a18dff97acca49ae580b7929842603ed8a2c1cdbb309e164d67 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:59:14,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:59:14,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:59:14,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:59:14,251 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:59:14,252 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:59:14,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2023-08-30 03:59:15,497 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:59:15,788 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:59:15,789 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2023-08-30 03:59:15,799 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0442c5b59/2716af91d1e241b7acb0dddfd50e7b17/FLAG59ffab3af [2023-08-30 03:59:15,812 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0442c5b59/2716af91d1e241b7acb0dddfd50e7b17 [2023-08-30 03:59:15,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:59:15,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:59:15,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:59:15,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:59:15,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:59:15,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:59:15" (1/1) ... [2023-08-30 03:59:15,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7db6ce09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:15, skipping insertion in model container [2023-08-30 03:59:15,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:59:15" (1/1) ... [2023-08-30 03:59:15,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:59:15,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:59:15,993 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i[1097,1110] [2023-08-30 03:59:16,146 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:59:16,166 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:59:16,183 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i[1097,1110] [2023-08-30 03:59:16,220 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:59:16,276 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:59:16,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:16 WrapperNode [2023-08-30 03:59:16,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:59:16,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:59:16,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:59:16,279 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:59:16,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:16" (1/1) ... [2023-08-30 03:59:16,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:16" (1/1) ... [2023-08-30 03:59:16,339 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-08-30 03:59:16,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:59:16,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:59:16,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:59:16,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:59:16,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:16" (1/1) ... [2023-08-30 03:59:16,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:16" (1/1) ... [2023-08-30 03:59:16,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:16" (1/1) ... [2023-08-30 03:59:16,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:16" (1/1) ... [2023-08-30 03:59:16,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:16" (1/1) ... [2023-08-30 03:59:16,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:16" (1/1) ... [2023-08-30 03:59:16,377 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:16" (1/1) ... [2023-08-30 03:59:16,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:16" (1/1) ... [2023-08-30 03:59:16,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:59:16,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:59:16,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:59:16,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:59:16,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:16" (1/1) ... [2023-08-30 03:59:16,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:59:16,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:59:16,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 03:59:16,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 03:59:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 03:59:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 03:59:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 03:59:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:59:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:59:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 03:59:16,456 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 03:59:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:59:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 03:59:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:59:16,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:59:16,458 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 03:59:16,609 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:59:16,611 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:59:16,857 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:59:16,863 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:59:16,866 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:59:16,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:16 BoogieIcfgContainer [2023-08-30 03:59:16,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:59:16,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:59:16,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:59:16,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:59:16,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:59:15" (1/3) ... [2023-08-30 03:59:16,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee8eb23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:59:16, skipping insertion in model container [2023-08-30 03:59:16,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:16" (2/3) ... [2023-08-30 03:59:16,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee8eb23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:59:16, skipping insertion in model container [2023-08-30 03:59:16,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:16" (3/3) ... [2023-08-30 03:59:16,877 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_pos.i [2023-08-30 03:59:16,892 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:59:16,892 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 03:59:16,892 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:59:16,976 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 03:59:17,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 67 transitions, 142 flow [2023-08-30 03:59:17,070 INFO L130 PetriNetUnfolder]: 2/66 cut-off events. [2023-08-30 03:59:17,070 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:17,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 66 events. 2/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 34 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2023-08-30 03:59:17,075 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 67 transitions, 142 flow [2023-08-30 03:59:17,080 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:17,083 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:59:17,106 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:17,111 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:17,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:17,138 INFO L130 PetriNetUnfolder]: 2/62 cut-off events. [2023-08-30 03:59:17,139 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:17,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 62 events. 2/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2023-08-30 03:59:17,141 INFO L119 LiptonReduction]: Number of co-enabled transitions 368 [2023-08-30 03:59:19,398 INFO L134 LiptonReduction]: Checked pairs total: 628 [2023-08-30 03:59:19,398 INFO L136 LiptonReduction]: Total number of compositions: 69 [2023-08-30 03:59:19,411 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:59:19,417 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;@2f7a2b82, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:59:19,417 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-30 03:59:19,419 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-30 03:59:19,420 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:59:19,420 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:59:19,420 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:59:19,421 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:59:19,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:59:19,425 INFO L85 PathProgramCache]: Analyzing trace with hash 268, now seen corresponding path program 1 times [2023-08-30 03:59:19,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:59:19,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908082280] [2023-08-30 03:59:19,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:59:19,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:59:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:59:19,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:59:19,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 03:59:19,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908082280] [2023-08-30 03:59:19,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908082280] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:59:19,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:59:19,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:59:19,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768699038] [2023-08-30 03:59:19,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:59:19,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:59:19,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 03:59:19,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:59:19,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:59:19,566 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 136 [2023-08-30 03:59:19,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 13 transitions, 32 flow. Second operand has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:59:19,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:59:19,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 136 [2023-08-30 03:59:19,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:59:19,601 INFO L130 PetriNetUnfolder]: 12/35 cut-off events. [2023-08-30 03:59:19,601 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:19,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 35 events. 12/35 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 87 event pairs, 12 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 62. Up to 36 conditions per place. [2023-08-30 03:59:19,603 INFO L137 encePairwiseOnDemand]: 134/136 looper letters, 11 selfloop transitions, 0 changer transitions 0/11 dead transitions. [2023-08-30 03:59:19,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 11 transitions, 50 flow [2023-08-30 03:59:19,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:59:19,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:59:19,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 139 transitions. [2023-08-30 03:59:19,615 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5110294117647058 [2023-08-30 03:59:19,615 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 139 transitions. [2023-08-30 03:59:19,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 139 transitions. [2023-08-30 03:59:19,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:59:19,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 139 transitions. [2023-08-30 03:59:19,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 69.5) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:59:19,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:59:19,625 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:59:19,627 INFO L175 Difference]: Start difference. First operand has 17 places, 13 transitions, 32 flow. Second operand 2 states and 139 transitions. [2023-08-30 03:59:19,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 11 transitions, 50 flow [2023-08-30 03:59:19,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 11 transitions, 46 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:59:19,630 INFO L231 Difference]: Finished difference. Result has 14 places, 11 transitions, 24 flow [2023-08-30 03:59:19,632 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=24, PETRI_PLACES=14, PETRI_TRANSITIONS=11} [2023-08-30 03:59:19,635 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, -3 predicate places. [2023-08-30 03:59:19,635 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 11 transitions, 24 flow [2023-08-30 03:59:19,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:59:19,636 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:59:19,636 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 03:59:19,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 03:59:19,636 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:59:19,637 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:59:19,637 INFO L85 PathProgramCache]: Analyzing trace with hash 261037, now seen corresponding path program 1 times [2023-08-30 03:59:19,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 03:59:19,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755451156] [2023-08-30 03:59:19,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:59:19,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 03:59:19,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:59:19,670 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 03:59:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:59:19,706 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 03:59:19,707 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 03:59:19,708 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2023-08-30 03:59:19,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2023-08-30 03:59:19,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2023-08-30 03:59:19,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2023-08-30 03:59:19,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2023-08-30 03:59:19,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2023-08-30 03:59:19,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2023-08-30 03:59:19,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2023-08-30 03:59:19,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 03:59:19,712 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 03:59:19,717 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:59:19,722 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:59:19,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:59:19 BasicIcfg [2023-08-30 03:59:19,739 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:59:19,739 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:59:19,739 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:59:19,740 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:59:19,740 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:16" (3/4) ... [2023-08-30 03:59:19,742 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-30 03:59:19,743 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:59:19,743 INFO L158 Benchmark]: Toolchain (without parser) took 3928.21ms. Allocated memory is still 81.8MB. Free memory was 59.0MB in the beginning and 42.4MB in the end (delta: 16.6MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2023-08-30 03:59:19,744 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 65.0MB. Free memory is still 42.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:19,744 INFO L158 Benchmark]: CACSL2BoogieTranslator took 461.26ms. Allocated memory is still 81.8MB. Free memory was 58.8MB in the beginning and 60.4MB in the end (delta: -1.6MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2023-08-30 03:59:19,745 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.75ms. Allocated memory is still 81.8MB. Free memory was 60.4MB in the beginning and 58.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:59:19,745 INFO L158 Benchmark]: Boogie Preprocessor took 45.34ms. Allocated memory is still 81.8MB. Free memory was 58.6MB in the beginning and 57.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:19,746 INFO L158 Benchmark]: RCFGBuilder took 482.24ms. Allocated memory is still 81.8MB. Free memory was 57.3MB in the beginning and 44.3MB in the end (delta: 12.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 03:59:19,746 INFO L158 Benchmark]: TraceAbstraction took 2868.21ms. Allocated memory is still 81.8MB. Free memory was 43.6MB in the beginning and 42.4MB in the end (delta: 1.2MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. [2023-08-30 03:59:19,746 INFO L158 Benchmark]: Witness Printer took 3.40ms. Allocated memory is still 81.8MB. Free memory is still 42.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:19,749 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 65.0MB. Free memory is still 42.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 461.26ms. Allocated memory is still 81.8MB. Free memory was 58.8MB in the beginning and 60.4MB in the end (delta: -1.6MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.75ms. Allocated memory is still 81.8MB. Free memory was 60.4MB in the beginning and 58.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.34ms. Allocated memory is still 81.8MB. Free memory was 58.6MB in the beginning and 57.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 482.24ms. Allocated memory is still 81.8MB. Free memory was 57.3MB in the beginning and 44.3MB in the end (delta: 12.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2868.21ms. Allocated memory is still 81.8MB. Free memory was 43.6MB in the beginning and 42.4MB in the end (delta: 1.2MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. * Witness Printer took 3.40ms. Allocated memory is still 81.8MB. Free memory is still 42.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 64 PlacesBefore, 17 PlacesAfterwards, 62 TransitionsBefore, 13 TransitionsAfterwards, 368 CoEnabledTransitionPairs, 5 FixpointIterations, 33 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 69 TotalNumberOfCompositions, 628 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 438, independent: 395, independent conditional: 0, independent unconditional: 395, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 237, independent: 220, independent conditional: 0, independent unconditional: 220, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 438, independent: 175, independent conditional: 0, independent unconditional: 175, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 237, unknown conditional: 0, unknown unconditional: 237] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND TRUE 1 t == 42 [L688] 1 glob1 = 1 [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 0) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 89 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-08-30 03:59:19,773 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_18-first-reads_unknown_1_pos.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 a91542c733a27a18dff97acca49ae580b7929842603ed8a2c1cdbb309e164d67 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 03:59:21,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 03:59:21,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 03:59:21,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 03:59:21,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 03:59:21,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 03:59:21,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 03:59:21,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 03:59:21,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 03:59:21,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 03:59:21,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 03:59:21,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 03:59:21,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 03:59:21,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 03:59:21,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 03:59:21,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 03:59:21,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 03:59:21,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 03:59:21,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 03:59:21,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 03:59:21,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 03:59:21,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 03:59:21,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 03:59:21,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 03:59:21,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 03:59:21,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 03:59:21,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 03:59:21,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 03:59:21,824 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 03:59:21,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 03:59:21,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 03:59:21,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 03:59:21,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 03:59:21,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 03:59:21,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 03:59:21,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 03:59:21,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 03:59:21,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 03:59:21,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 03:59:21,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 03:59:21,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 03:59:21,838 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-08-30 03:59:21,873 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 03:59:21,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 03:59:21,874 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 03:59:21,875 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 03:59:21,875 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 03:59:21,876 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 03:59:21,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 03:59:21,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 03:59:21,877 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 03:59:21,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 03:59:21,878 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 03:59:21,878 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 03:59:21,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 03:59:21,878 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 03:59:21,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 03:59:21,879 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 03:59:21,879 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 03:59:21,879 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 03:59:21,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 03:59:21,879 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 03:59:21,880 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-08-30 03:59:21,880 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-08-30 03:59:21,880 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 03:59:21,880 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 03:59:21,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 03:59:21,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 03:59:21,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 03:59:21,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:59:21,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 03:59:21,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 03:59:21,882 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-08-30 03:59:21,882 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-08-30 03:59:21,882 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 03:59:21,882 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 03:59:21,882 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 03:59:21,883 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-08-30 03:59:21,883 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 03:59:21,883 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a91542c733a27a18dff97acca49ae580b7929842603ed8a2c1cdbb309e164d67 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 03:59:22,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 03:59:22,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 03:59:22,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 03:59:22,186 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 03:59:22,187 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 03:59:22,188 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2023-08-30 03:59:23,458 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 03:59:23,787 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 03:59:23,787 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2023-08-30 03:59:23,800 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/774eec84d/2eb51759873a45a3a90d29c4a233bd9b/FLAG8e6cd09ef [2023-08-30 03:59:23,812 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/774eec84d/2eb51759873a45a3a90d29c4a233bd9b [2023-08-30 03:59:23,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 03:59:23,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 03:59:23,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 03:59:23,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 03:59:23,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 03:59:23,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:59:23" (1/1) ... [2023-08-30 03:59:23,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29093146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:23, skipping insertion in model container [2023-08-30 03:59:23,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:59:23" (1/1) ... [2023-08-30 03:59:23,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 03:59:23,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 03:59:23,982 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i[1097,1110] [2023-08-30 03:59:24,091 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:59:24,105 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 03:59:24,118 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i[1097,1110] [2023-08-30 03:59:24,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 03:59:24,211 INFO L208 MainTranslator]: Completed translation [2023-08-30 03:59:24,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:24 WrapperNode [2023-08-30 03:59:24,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 03:59:24,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 03:59:24,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 03:59:24,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 03:59:24,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:24" (1/1) ... [2023-08-30 03:59:24,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:24" (1/1) ... [2023-08-30 03:59:24,277 INFO L138 Inliner]: procedures = 167, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-08-30 03:59:24,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 03:59:24,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 03:59:24,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 03:59:24,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 03:59:24,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:24" (1/1) ... [2023-08-30 03:59:24,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:24" (1/1) ... [2023-08-30 03:59:24,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:24" (1/1) ... [2023-08-30 03:59:24,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:24" (1/1) ... [2023-08-30 03:59:24,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:24" (1/1) ... [2023-08-30 03:59:24,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:24" (1/1) ... [2023-08-30 03:59:24,342 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:24" (1/1) ... [2023-08-30 03:59:24,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:24" (1/1) ... [2023-08-30 03:59:24,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 03:59:24,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 03:59:24,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 03:59:24,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 03:59:24,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:24" (1/1) ... [2023-08-30 03:59:24,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 03:59:24,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 03:59:24,390 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 03:59:24,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 03:59:24,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-08-30 03:59:24,436 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 03:59:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 03:59:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 03:59:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 03:59:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 03:59:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 03:59:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-08-30 03:59:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-08-30 03:59:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-08-30 03:59:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 03:59:24,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 03:59:24,440 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 03:59:24,615 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 03:59:24,616 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 03:59:24,779 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 03:59:24,786 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 03:59:24,786 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 03:59:24,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:24 BoogieIcfgContainer [2023-08-30 03:59:24,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 03:59:24,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 03:59:24,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 03:59:24,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 03:59:24,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:59:23" (1/3) ... [2023-08-30 03:59:24,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430f2499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:59:24, skipping insertion in model container [2023-08-30 03:59:24,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:59:24" (2/3) ... [2023-08-30 03:59:24,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430f2499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:59:24, skipping insertion in model container [2023-08-30 03:59:24,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:24" (3/3) ... [2023-08-30 03:59:24,806 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_pos.i [2023-08-30 03:59:24,820 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 03:59:24,820 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 03:59:24,822 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 03:59:24,891 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 03:59:24,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 67 transitions, 142 flow [2023-08-30 03:59:24,950 INFO L130 PetriNetUnfolder]: 2/66 cut-off events. [2023-08-30 03:59:24,951 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:24,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 66 events. 2/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-08-30 03:59:24,955 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 67 transitions, 142 flow [2023-08-30 03:59:24,958 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:24,962 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 03:59:24,970 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:24,972 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:24,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 62 transitions, 130 flow [2023-08-30 03:59:24,995 INFO L130 PetriNetUnfolder]: 2/62 cut-off events. [2023-08-30 03:59:24,995 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:24,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 62 events. 2/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 35 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-08-30 03:59:24,997 INFO L119 LiptonReduction]: Number of co-enabled transitions 352 [2023-08-30 03:59:28,964 INFO L134 LiptonReduction]: Checked pairs total: 637 [2023-08-30 03:59:28,965 INFO L136 LiptonReduction]: Total number of compositions: 64 [2023-08-30 03:59:28,979 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 03:59:28,985 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;@373c4a5d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 03:59:28,986 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-30 03:59:28,987 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 03:59:28,987 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 03:59:28,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:59:28,988 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 03:59:28,988 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:59:28,993 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:59:28,993 INFO L85 PathProgramCache]: Analyzing trace with hash 261, now seen corresponding path program 1 times [2023-08-30 03:59:29,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 03:59:29,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1029071842] [2023-08-30 03:59:29,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:59:29,005 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 03:59:29,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 03:59:29,013 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-30 03:59:29,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-08-30 03:59:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 03:59:29,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-08-30 03:59:29,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 03:59:29,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 03:59:29,090 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 03:59:29,091 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-30 03:59:29,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1029071842] [2023-08-30 03:59:29,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1029071842] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 03:59:29,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 03:59:29,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 03:59:29,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367501359] [2023-08-30 03:59:29,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 03:59:29,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 03:59:29,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-30 03:59:29,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 03:59:29,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 03:59:29,134 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 131 [2023-08-30 03:59:29,137 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 13 transitions, 32 flow. Second operand has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:59:29,137 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 03:59:29,137 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 131 [2023-08-30 03:59:29,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 03:59:29,177 INFO L130 PetriNetUnfolder]: 12/35 cut-off events. [2023-08-30 03:59:29,178 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 03:59:29,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 35 events. 12/35 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 88 event pairs, 12 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 62. Up to 36 conditions per place. [2023-08-30 03:59:29,179 INFO L137 encePairwiseOnDemand]: 129/131 looper letters, 11 selfloop transitions, 0 changer transitions 0/11 dead transitions. [2023-08-30 03:59:29,179 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 11 transitions, 50 flow [2023-08-30 03:59:29,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 03:59:29,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 03:59:29,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 139 transitions. [2023-08-30 03:59:29,191 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5305343511450382 [2023-08-30 03:59:29,209 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 139 transitions. [2023-08-30 03:59:29,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 139 transitions. [2023-08-30 03:59:29,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 03:59:29,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 139 transitions. [2023-08-30 03:59:29,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 69.5) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:59:29,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:59:29,219 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:59:29,221 INFO L175 Difference]: Start difference. First operand has 17 places, 13 transitions, 32 flow. Second operand 2 states and 139 transitions. [2023-08-30 03:59:29,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 11 transitions, 50 flow [2023-08-30 03:59:29,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 11 transitions, 46 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 03:59:29,225 INFO L231 Difference]: Finished difference. Result has 14 places, 11 transitions, 24 flow [2023-08-30 03:59:29,242 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=24, PETRI_PLACES=14, PETRI_TRANSITIONS=11} [2023-08-30 03:59:29,245 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, -3 predicate places. [2023-08-30 03:59:29,245 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 11 transitions, 24 flow [2023-08-30 03:59:29,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 03:59:29,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 03:59:29,246 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 03:59:29,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-08-30 03:59:29,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 03:59:29,447 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-08-30 03:59:29,448 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 03:59:29,448 INFO L85 PathProgramCache]: Analyzing trace with hash 255234, now seen corresponding path program 1 times [2023-08-30 03:59:29,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-30 03:59:29,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434125759] [2023-08-30 03:59:29,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 03:59:29,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 03:59:29,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-30 03:59:29,457 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-30 03:59:29,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-08-30 03:59:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:59:29,515 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 03:59:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 03:59:29,551 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-08-30 03:59:29,551 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 03:59:29,553 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2023-08-30 03:59:29,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2023-08-30 03:59:29,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2023-08-30 03:59:29,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2023-08-30 03:59:29,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2023-08-30 03:59:29,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2023-08-30 03:59:29,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2023-08-30 03:59:29,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2023-08-30 03:59:29,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-08-30 03:59:29,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-30 03:59:29,766 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 03:59:29,771 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 03:59:29,771 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 03:59:29,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:59:29 BasicIcfg [2023-08-30 03:59:29,793 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 03:59:29,793 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 03:59:29,794 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 03:59:29,794 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 03:59:29,794 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:59:24" (3/4) ... [2023-08-30 03:59:29,799 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-30 03:59:29,799 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 03:59:29,800 INFO L158 Benchmark]: Toolchain (without parser) took 5984.47ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 64.4MB in the beginning and 47.7MB in the end (delta: 16.8MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2023-08-30 03:59:29,801 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 60.8MB. Free memory is still 38.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:29,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 395.94ms. Allocated memory is still 88.1MB. Free memory was 64.2MB in the beginning and 44.4MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-08-30 03:59:29,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.58ms. Allocated memory is still 88.1MB. Free memory was 44.4MB in the beginning and 42.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:29,802 INFO L158 Benchmark]: Boogie Preprocessor took 71.28ms. Allocated memory is still 88.1MB. Free memory was 67.9MB in the beginning and 66.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 03:59:29,803 INFO L158 Benchmark]: RCFGBuilder took 434.59ms. Allocated memory is still 88.1MB. Free memory was 66.6MB in the beginning and 52.4MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 03:59:29,803 INFO L158 Benchmark]: TraceAbstraction took 5001.03ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 51.6MB in the beginning and 47.7MB in the end (delta: 3.9MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2023-08-30 03:59:29,804 INFO L158 Benchmark]: Witness Printer took 5.54ms. Allocated memory is still 107.0MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 03:59:29,806 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 60.8MB. Free memory is still 38.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 395.94ms. Allocated memory is still 88.1MB. Free memory was 64.2MB in the beginning and 44.4MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.58ms. Allocated memory is still 88.1MB. Free memory was 44.4MB in the beginning and 42.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 71.28ms. Allocated memory is still 88.1MB. Free memory was 67.9MB in the beginning and 66.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 434.59ms. Allocated memory is still 88.1MB. Free memory was 66.6MB in the beginning and 52.4MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5001.03ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 51.6MB in the beginning and 47.7MB in the end (delta: 3.9MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. * Witness Printer took 5.54ms. Allocated memory is still 107.0MB. Free memory is still 47.7MB. 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: 4.0s, 64 PlacesBefore, 17 PlacesAfterwards, 62 TransitionsBefore, 13 TransitionsAfterwards, 352 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 64 TotalNumberOfCompositions, 637 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 422, independent: 368, independent conditional: 0, independent unconditional: 368, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 226, independent: 208, independent conditional: 0, independent unconditional: 208, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 422, independent: 160, independent conditional: 0, independent unconditional: 160, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 226, unknown conditional: 0, unknown unconditional: 226] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={32771:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND TRUE 1 t == 42 [L688] 1 glob1 = 1 [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 0) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 88 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-08-30 03:59:29,835 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