./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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_2_pos.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 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 10:14:47,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 10:14:47,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 10:14:47,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 10:14:47,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 10:14:47,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 10:14:47,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 10:14:47,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 10:14:47,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 10:14:47,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 10:14:47,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 10:14:47,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 10:14:47,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 10:14:47,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 10:14:47,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 10:14:47,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 10:14:47,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 10:14:47,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 10:14:47,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 10:14:47,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 10:14:47,860 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 10:14:47,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 10:14:47,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 10:14:47,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 10:14:47,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 10:14:47,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 10:14:47,867 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 10:14:47,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 10:14:47,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 10:14:47,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 10:14:47,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 10:14:47,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 10:14:47,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 10:14:47,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 10:14:47,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 10:14:47,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 10:14:47,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 10:14:47,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 10:14:47,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 10:14:47,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 10:14:47,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 10:14:47,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 10:14:47,876 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 10:14:47,900 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 10:14:47,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 10:14:47,900 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 10:14:47,900 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 10:14:47,901 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 10:14:47,901 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 10:14:47,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 10:14:47,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 10:14:47,902 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 10:14:47,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 10:14:47,903 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 10:14:47,903 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 10:14:47,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 10:14:47,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 10:14:47,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 10:14:47,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 10:14:47,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 10:14:47,904 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 10:14:47,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 10:14:47,905 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 10:14:47,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 10:14:47,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 10:14:47,905 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 10:14:47,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 10:14:47,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:14:47,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 10:14:47,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 10:14:47,906 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 10:14:47,906 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 10:14:47,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 10:14:47,907 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 10:14:47,907 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 10:14:47,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 10:14:47,907 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa [2022-07-12 10:14:48,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 10:14:48,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 10:14:48,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 10:14:48,143 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 10:14:48,143 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 10:14:48,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2022-07-12 10:14:48,203 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6bb5cddd/056e30d834664a8a8b974309ec8fce2a/FLAGdc0ddd145 [2022-07-12 10:14:48,609 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 10:14:48,610 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2022-07-12 10:14:48,627 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6bb5cddd/056e30d834664a8a8b974309ec8fce2a/FLAGdc0ddd145 [2022-07-12 10:14:48,635 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6bb5cddd/056e30d834664a8a8b974309ec8fce2a [2022-07-12 10:14:48,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 10:14:48,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 10:14:48,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 10:14:48,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 10:14:48,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 10:14:48,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:14:48" (1/1) ... [2022-07-12 10:14:48,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@124e995b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:14:48, skipping insertion in model container [2022-07-12 10:14:48,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:14:48" (1/1) ... [2022-07-12 10:14:48,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 10:14:48,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 10:14:48,891 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_2_pos.i[1097,1110] [2022-07-12 10:14:49,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:14:49,030 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 10:14:49,040 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_2_pos.i[1097,1110] [2022-07-12 10:14:49,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:14:49,092 INFO L208 MainTranslator]: Completed translation [2022-07-12 10:14:49,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:14:49 WrapperNode [2022-07-12 10:14:49,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 10:14:49,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 10:14:49,094 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 10:14:49,094 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 10:14:49,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:14:49" (1/1) ... [2022-07-12 10:14:49,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:14:49" (1/1) ... [2022-07-12 10:14:49,126 INFO L137 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-07-12 10:14:49,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 10:14:49,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 10:14:49,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 10:14:49,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 10:14:49,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:14:49" (1/1) ... [2022-07-12 10:14:49,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:14:49" (1/1) ... [2022-07-12 10:14:49,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:14:49" (1/1) ... [2022-07-12 10:14:49,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:14:49" (1/1) ... [2022-07-12 10:14:49,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:14:49" (1/1) ... [2022-07-12 10:14:49,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:14:49" (1/1) ... [2022-07-12 10:14:49,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:14:49" (1/1) ... [2022-07-12 10:14:49,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 10:14:49,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 10:14:49,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 10:14:49,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 10:14:49,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:14:49" (1/1) ... [2022-07-12 10:14:49,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:14:49,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:14:49,173 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) [2022-07-12 10:14:49,179 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 [2022-07-12 10:14:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 10:14:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 10:14:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-12 10:14:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 10:14:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 10:14:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-12 10:14:49,199 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-12 10:14:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 10:14:49,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 10:14:49,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 10:14:49,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 10:14:49,201 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-12 10:14:49,296 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 10:14:49,297 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 10:14:49,418 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 10:14:49,423 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 10:14:49,423 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 10:14:49,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:14:49 BoogieIcfgContainer [2022-07-12 10:14:49,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 10:14:49,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 10:14:49,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 10:14:49,429 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 10:14:49,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 10:14:48" (1/3) ... [2022-07-12 10:14:49,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6645b27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 10:14:49, skipping insertion in model container [2022-07-12 10:14:49,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:14:49" (2/3) ... [2022-07-12 10:14:49,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6645b27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 10:14:49, skipping insertion in model container [2022-07-12 10:14:49,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:14:49" (3/3) ... [2022-07-12 10:14:49,431 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2022-07-12 10:14:49,435 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-12 10:14:49,440 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 10:14:49,441 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 10:14:49,441 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-12 10:14:49,469 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-07-12 10:14:49,487 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 64 transitions, 136 flow [2022-07-12 10:14:49,506 INFO L129 PetriNetUnfolder]: 2/63 cut-off events. [2022-07-12 10:14:49,507 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-12 10:14:49,508 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. [2022-07-12 10:14:49,508 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 64 transitions, 136 flow [2022-07-12 10:14:49,511 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 47 transitions, 97 flow [2022-07-12 10:14:49,520 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 10:14:49,524 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@2db2df75, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1ad9048d [2022-07-12 10:14:49,524 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-12 10:14:49,533 INFO L129 PetriNetUnfolder]: 1/46 cut-off events. [2022-07-12 10:14:49,533 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-12 10:14:49,533 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:14:49,534 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] [2022-07-12 10:14:49,534 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 10:14:49,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:14:49,537 INFO L85 PathProgramCache]: Analyzing trace with hash -392670942, now seen corresponding path program 1 times [2022-07-12 10:14:49,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:14:49,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107279205] [2022-07-12 10:14:49,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:14:49,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:14:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 10:14:49,637 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 10:14:49,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 10:14:49,686 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 10:14:49,688 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 10:14:49,689 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-07-12 10:14:49,690 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-07-12 10:14:49,690 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-07-12 10:14:49,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 10:14:49,691 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-12 10:14:49,699 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-12 10:14:49,699 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 10:14:49,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 10:14:49 BasicIcfg [2022-07-12 10:14:49,724 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 10:14:49,724 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 10:14:49,724 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 10:14:49,724 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 10:14:49,725 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:14:49" (3/4) ... [2022-07-12 10:14:49,726 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-12 10:14:49,754 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 10:14:49,755 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 10:14:49,755 INFO L158 Benchmark]: Toolchain (without parser) took 1118.01ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 85.6MB in the beginning and 106.4MB in the end (delta: -20.8MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2022-07-12 10:14:49,756 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 10:14:49,756 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.80ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 85.4MB in the beginning and 108.6MB in the end (delta: -23.2MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2022-07-12 10:14:49,757 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.58ms. Allocated memory is still 144.7MB. Free memory was 108.4MB in the beginning and 106.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 10:14:49,757 INFO L158 Benchmark]: Boogie Preprocessor took 17.30ms. Allocated memory is still 144.7MB. Free memory was 106.4MB in the beginning and 105.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 10:14:49,757 INFO L158 Benchmark]: RCFGBuilder took 279.69ms. Allocated memory is still 144.7MB. Free memory was 105.2MB in the beginning and 93.9MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-12 10:14:49,758 INFO L158 Benchmark]: TraceAbstraction took 298.18ms. Allocated memory is still 144.7MB. Free memory was 93.5MB in the beginning and 109.9MB in the end (delta: -16.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 10:14:49,758 INFO L158 Benchmark]: Witness Printer took 30.43ms. Allocated memory is still 144.7MB. Free memory was 109.9MB in the beginning and 106.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-12 10:14:49,760 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 454.80ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 85.4MB in the beginning and 108.6MB in the end (delta: -23.2MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.58ms. Allocated memory is still 144.7MB. Free memory was 108.4MB in the beginning and 106.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.30ms. Allocated memory is still 144.7MB. Free memory was 106.4MB in the beginning and 105.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 279.69ms. Allocated memory is still 144.7MB. Free memory was 105.2MB in the beginning and 93.9MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 298.18ms. Allocated memory is still 144.7MB. Free memory was 93.5MB in the beginning and 109.9MB in the end (delta: -16.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 30.43ms. Allocated memory is still 144.7MB. Free memory was 109.9MB in the beginning and 106.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. 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 == 1) [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: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, 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, 0.0s 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! [2022-07-12 10:14:49,786 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