./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash db89c87a20c604c9441b7de7f477400cd6fc4624b5ed335b5e7cd959bb73911d --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 21:54:54,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 21:54:54,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 21:54:54,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 21:54:54,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 21:54:54,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 21:54:54,887 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 21:54:54,889 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 21:54:54,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 21:54:54,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 21:54:54,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 21:54:54,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 21:54:54,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 21:54:54,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 21:54:54,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 21:54:54,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 21:54:54,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 21:54:54,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 21:54:54,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 21:54:54,908 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 21:54:54,909 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 21:54:54,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 21:54:54,910 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 21:54:54,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 21:54:54,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 21:54:54,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 21:54:54,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 21:54:54,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 21:54:54,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 21:54:54,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 21:54:54,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 21:54:54,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 21:54:54,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 21:54:54,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 21:54:54,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 21:54:54,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 21:54:54,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 21:54:54,923 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 21:54:54,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 21:54:54,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 21:54:54,925 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 21:54:54,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 21:54:54,927 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 21:54:54,950 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 21:54:54,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 21:54:54,951 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 21:54:54,951 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 21:54:54,952 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 21:54:54,952 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 21:54:54,952 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 21:54:54,952 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 21:54:54,953 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 21:54:54,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 21:54:54,953 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 21:54:54,954 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 21:54:54,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 21:54:54,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 21:54:54,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 21:54:54,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 21:54:54,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 21:54:54,954 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 21:54:54,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 21:54:54,955 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 21:54:54,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 21:54:54,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 21:54:54,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 21:54:54,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 21:54:54,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:54:54,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 21:54:54,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 21:54:54,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 21:54:54,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 21:54:54,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 21:54:54,957 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 21:54:54,957 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 21:54:54,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 21:54:54,958 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db89c87a20c604c9441b7de7f477400cd6fc4624b5ed335b5e7cd959bb73911d [2022-07-13 21:54:55,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 21:54:55,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 21:54:55,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 21:54:55,173 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 21:54:55,174 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 21:54:55,175 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2022-07-13 21:54:55,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35c6cbe42/2e737ec8619547e2a338739a6a7d1381/FLAGab6d4df86 [2022-07-13 21:54:55,586 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 21:54:55,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2022-07-13 21:54:55,601 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35c6cbe42/2e737ec8619547e2a338739a6a7d1381/FLAGab6d4df86 [2022-07-13 21:54:55,613 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35c6cbe42/2e737ec8619547e2a338739a6a7d1381 [2022-07-13 21:54:55,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 21:54:55,615 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 21:54:55,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 21:54:55,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 21:54:55,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 21:54:55,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:54:55" (1/1) ... [2022-07-13 21:54:55,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@204b24be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:54:55, skipping insertion in model container [2022-07-13 21:54:55,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:54:55" (1/1) ... [2022-07-13 21:54:55,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 21:54:55,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 21:54:55,781 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i[1097,1110] [2022-07-13 21:54:55,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:54:55,917 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 21:54:55,928 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i[1097,1110] [2022-07-13 21:54:55,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:54:55,995 INFO L208 MainTranslator]: Completed translation [2022-07-13 21:54:55,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:54:55 WrapperNode [2022-07-13 21:54:55,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 21:54:55,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 21:54:55,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 21:54:55,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 21:54:56,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:54:55" (1/1) ... [2022-07-13 21:54:56,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:54:55" (1/1) ... [2022-07-13 21:54:56,038 INFO L137 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-07-13 21:54:56,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 21:54:56,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 21:54:56,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 21:54:56,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 21:54:56,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:54:55" (1/1) ... [2022-07-13 21:54:56,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:54:55" (1/1) ... [2022-07-13 21:54:56,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:54:55" (1/1) ... [2022-07-13 21:54:56,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:54:55" (1/1) ... [2022-07-13 21:54:56,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:54:55" (1/1) ... [2022-07-13 21:54:56,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:54:55" (1/1) ... [2022-07-13 21:54:56,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:54:55" (1/1) ... [2022-07-13 21:54:56,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 21:54:56,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 21:54:56,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 21:54:56,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 21:54:56,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:54:55" (1/1) ... [2022-07-13 21:54:56,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:54:56,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 21:54:56,102 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) [2022-07-13 21:54:56,103 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 [2022-07-13 21:54:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 21:54:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 21:54:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-13 21:54:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 21:54:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 21:54:56,130 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-13 21:54:56,130 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-13 21:54:56,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 21:54:56,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 21:54:56,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 21:54:56,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 21:54:56,131 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 21:54:56,254 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 21:54:56,255 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 21:54:56,372 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 21:54:56,376 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 21:54:56,381 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 21:54:56,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:54:56 BoogieIcfgContainer [2022-07-13 21:54:56,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 21:54:56,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 21:54:56,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 21:54:56,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 21:54:56,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 09:54:55" (1/3) ... [2022-07-13 21:54:56,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340d81e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:54:56, skipping insertion in model container [2022-07-13 21:54:56,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:54:55" (2/3) ... [2022-07-13 21:54:56,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340d81e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:54:56, skipping insertion in model container [2022-07-13 21:54:56,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:54:56" (3/3) ... [2022-07-13 21:54:56,388 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_neg.i [2022-07-13 21:54:56,391 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 21:54:56,397 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 21:54:56,397 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 21:54:56,397 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 21:54:56,451 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-07-13 21:54:56,482 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 64 transitions, 136 flow [2022-07-13 21:54:56,530 INFO L129 PetriNetUnfolder]: 2/63 cut-off events. [2022-07-13 21:54:56,530 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-13 21:54:56,532 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 63 events. 2/63 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2022-07-13 21:54:56,533 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 64 transitions, 136 flow [2022-07-13 21:54:56,538 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 47 transitions, 97 flow [2022-07-13 21:54:56,559 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 21:54:56,568 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1b0ec8fe, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7a022b2b [2022-07-13 21:54:56,569 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-13 21:54:56,591 INFO L129 PetriNetUnfolder]: 1/46 cut-off events. [2022-07-13 21:54:56,592 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-13 21:54:56,592 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:54:56,593 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:54:56,594 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 21:54:56,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:54:56,600 INFO L85 PathProgramCache]: Analyzing trace with hash -392670942, now seen corresponding path program 1 times [2022-07-13 21:54:56,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:54:56,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670094825] [2022-07-13 21:54:56,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:54:56,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:54:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:54:56,754 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 21:54:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:54:56,818 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 21:54:56,821 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 21:54:56,822 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-07-13 21:54:56,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-07-13 21:54:56,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-07-13 21:54:56,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 21:54:56,826 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-13 21:54:56,833 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-13 21:54:56,833 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 21:54:56,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 09:54:56 BasicIcfg [2022-07-13 21:54:56,882 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 21:54:56,883 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 21:54:56,884 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 21:54:56,884 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 21:54:56,884 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:54:56" (3/4) ... [2022-07-13 21:54:56,886 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-13 21:54:56,944 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 21:54:56,944 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 21:54:56,946 INFO L158 Benchmark]: Toolchain (without parser) took 1329.71ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 52.4MB in the beginning and 55.1MB in the end (delta: -2.7MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2022-07-13 21:54:56,946 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 88.1MB. Free memory was 58.1MB in the beginning and 58.1MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 21:54:56,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.00ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 52.2MB in the beginning and 73.3MB in the end (delta: -21.1MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-07-13 21:54:56,948 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.45ms. Allocated memory is still 107.0MB. Free memory was 73.3MB in the beginning and 71.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 21:54:56,948 INFO L158 Benchmark]: Boogie Preprocessor took 38.25ms. Allocated memory is still 107.0MB. Free memory was 71.2MB in the beginning and 70.2MB in the end (delta: 966.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 21:54:56,949 INFO L158 Benchmark]: RCFGBuilder took 304.58ms. Allocated memory is still 107.0MB. Free memory was 70.0MB in the beginning and 83.9MB in the end (delta: -13.9MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2022-07-13 21:54:56,949 INFO L158 Benchmark]: TraceAbstraction took 498.10ms. Allocated memory is still 107.0MB. Free memory was 83.3MB in the beginning and 58.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-07-13 21:54:56,949 INFO L158 Benchmark]: Witness Printer took 60.62ms. Allocated memory is still 107.0MB. Free memory was 58.2MB in the beginning and 55.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 21:54:56,956 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 88.1MB. Free memory was 58.1MB in the beginning and 58.1MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 379.00ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 52.2MB in the beginning and 73.3MB in the end (delta: -21.1MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.45ms. Allocated memory is still 107.0MB. Free memory was 73.3MB in the beginning and 71.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.25ms. Allocated memory is still 107.0MB. Free memory was 71.2MB in the beginning and 70.2MB in the end (delta: 966.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 304.58ms. Allocated memory is still 107.0MB. Free memory was 70.0MB in the beginning and 83.9MB in the end (delta: -13.9MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * TraceAbstraction took 498.10ms. Allocated memory is still 107.0MB. Free memory was 83.3MB in the beginning and 58.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 60.62ms. Allocated memory is still 107.0MB. Free memory was 58.2MB in the beginning and 55.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int glob1 = 0; VAL [glob1=0] [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [glob1=0, mutex1={3:0}] [L697] 0 pthread_t id; VAL [glob1=0, id={5:0}, mutex1={3:0}] [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(); VAL [__VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L687] COND FALSE 1 !(t == 42) VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L690] 1 t = glob1 VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L691] CALL 1 __VERIFIER_assert(!(t == 0)) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - 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, 87 locations, 3 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: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 proved your program to be incorrect! [2022-07-13 21:54:56,992 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE