./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.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_67-pthread_cond_wait_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 78eedbb170ccb94e306b53f35c5dd71f86d003c1abe4d157fc2c720e38b8df88 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 10:15:19,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 10:15:19,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 10:15:19,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 10:15:19,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 10:15:19,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 10:15:19,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 10:15:19,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 10:15:19,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 10:15:19,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 10:15:19,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 10:15:19,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 10:15:19,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 10:15:19,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 10:15:19,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 10:15:19,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 10:15:19,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 10:15:19,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 10:15:19,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 10:15:19,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 10:15:19,771 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 10:15:19,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 10:15:19,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 10:15:19,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 10:15:19,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 10:15:19,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 10:15:19,781 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 10:15:19,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 10:15:19,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 10:15:19,783 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 10:15:19,784 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 10:15:19,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 10:15:19,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 10:15:19,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 10:15:19,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 10:15:19,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 10:15:19,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 10:15:19,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 10:15:19,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 10:15:19,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 10:15:19,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 10:15:19,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 10:15:19,793 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 10:15:19,821 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 10:15:19,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 10:15:19,822 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 10:15:19,822 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 10:15:19,823 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 10:15:19,823 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 10:15:19,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 10:15:19,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 10:15:19,824 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 10:15:19,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 10:15:19,825 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 10:15:19,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 10:15:19,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 10:15:19,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 10:15:19,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 10:15:19,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 10:15:19,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 10:15:19,826 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 10:15:19,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 10:15:19,828 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 10:15:19,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 10:15:19,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 10:15:19,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 10:15:19,829 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 10:15:19,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:15:19,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 10:15:19,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 10:15:19,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 10:15:19,830 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 10:15:19,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 10:15:19,830 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 10:15:19,831 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 10:15:19,831 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 10:15:19,831 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78eedbb170ccb94e306b53f35c5dd71f86d003c1abe4d157fc2c720e38b8df88 [2022-07-12 10:15:20,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 10:15:20,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 10:15:20,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 10:15:20,101 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 10:15:20,101 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 10:15:20,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-07-12 10:15:20,169 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ef9b86e6/842a109319784e1281a764c65961f5f5/FLAG6d01f7ffc [2022-07-12 10:15:20,688 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 10:15:20,688 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-07-12 10:15:20,706 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ef9b86e6/842a109319784e1281a764c65961f5f5/FLAG6d01f7ffc [2022-07-12 10:15:21,131 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ef9b86e6/842a109319784e1281a764c65961f5f5 [2022-07-12 10:15:21,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 10:15:21,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 10:15:21,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 10:15:21,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 10:15:21,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 10:15:21,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:15:21" (1/1) ... [2022-07-12 10:15:21,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f9fc4ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:15:21, skipping insertion in model container [2022-07-12 10:15:21,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:15:21" (1/1) ... [2022-07-12 10:15:21,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 10:15:21,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 10:15:21,370 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_67-pthread_cond_wait_unknown_1_neg.i[1103,1116] [2022-07-12 10:15:21,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:15:21,738 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 10:15:21,749 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_67-pthread_cond_wait_unknown_1_neg.i[1103,1116] [2022-07-12 10:15:21,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:15:21,832 INFO L208 MainTranslator]: Completed translation [2022-07-12 10:15:21,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:15:21 WrapperNode [2022-07-12 10:15:21,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 10:15:21,834 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 10:15:21,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 10:15:21,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 10:15:21,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:15:21" (1/1) ... [2022-07-12 10:15:21,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:15:21" (1/1) ... [2022-07-12 10:15:21,909 INFO L137 Inliner]: procedures = 354, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2022-07-12 10:15:21,909 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 10:15:21,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 10:15:21,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 10:15:21,911 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 10:15:21,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:15:21" (1/1) ... [2022-07-12 10:15:21,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:15:21" (1/1) ... [2022-07-12 10:15:21,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:15:21" (1/1) ... [2022-07-12 10:15:21,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:15:21" (1/1) ... [2022-07-12 10:15:21,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:15:21" (1/1) ... [2022-07-12 10:15:21,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:15:21" (1/1) ... [2022-07-12 10:15:21,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:15:21" (1/1) ... [2022-07-12 10:15:21,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 10:15:21,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 10:15:21,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 10:15:21,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 10:15:21,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:15:21" (1/1) ... [2022-07-12 10:15:21,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:15:21,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:15:22,041 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 10:15:22,042 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 10:15:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-07-12 10:15:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-07-12 10:15:22,071 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-07-12 10:15:22,071 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-07-12 10:15:22,071 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-07-12 10:15:22,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 10:15:22,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 10:15:22,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 10:15:22,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 10:15:22,072 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-12 10:15:22,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 10:15:22,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 10:15:22,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 10:15:22,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 10:15:22,073 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 10:15:22,322 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 10:15:22,323 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 10:15:22,454 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 10:15:22,460 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 10:15:22,460 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 10:15:22,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:15:22 BoogieIcfgContainer [2022-07-12 10:15:22,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 10:15:22,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 10:15:22,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 10:15:22,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 10:15:22,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 10:15:21" (1/3) ... [2022-07-12 10:15:22,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c88ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 10:15:22, skipping insertion in model container [2022-07-12 10:15:22,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:15:21" (2/3) ... [2022-07-12 10:15:22,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c88ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 10:15:22, skipping insertion in model container [2022-07-12 10:15:22,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:15:22" (3/3) ... [2022-07-12 10:15:22,468 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-07-12 10:15:22,473 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-12 10:15:22,480 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 10:15:22,480 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 10:15:22,481 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-12 10:15:22,554 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-12 10:15:22,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 95 transitions, 206 flow [2022-07-12 10:15:22,634 INFO L129 PetriNetUnfolder]: 1/93 cut-off events. [2022-07-12 10:15:22,635 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-12 10:15:22,638 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 93 events. 1/93 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2022-07-12 10:15:22,638 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 95 transitions, 206 flow [2022-07-12 10:15:22,642 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 75 transitions, 159 flow [2022-07-12 10:15:22,654 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 10:15:22,661 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@64dac7c6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2c91e53f [2022-07-12 10:15:22,661 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-12 10:15:22,687 INFO L129 PetriNetUnfolder]: 0/71 cut-off events. [2022-07-12 10:15:22,687 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-12 10:15:22,687 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:15:22,688 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:15:22,688 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-07-12 10:15:22,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:15:22,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1499020934, now seen corresponding path program 1 times [2022-07-12 10:15:22,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:15:22,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111403614] [2022-07-12 10:15:22,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:15:22,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:15:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 10:15:22,946 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 10:15:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 10:15:23,046 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 10:15:23,051 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 10:15:23,052 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-07-12 10:15:23,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-07-12 10:15:23,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-07-12 10:15:23,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-07-12 10:15:23,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 10:15:23,055 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-12 10:15:23,061 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-12 10:15:23,062 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 10:15:23,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 10:15:23 BasicIcfg [2022-07-12 10:15:23,111 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 10:15:23,112 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 10:15:23,112 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 10:15:23,112 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 10:15:23,112 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:15:22" (3/4) ... [2022-07-12 10:15:23,114 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-12 10:15:23,169 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 10:15:23,170 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 10:15:23,172 INFO L158 Benchmark]: Toolchain (without parser) took 2036.48ms. Allocated memory is still 102.8MB. Free memory was 67.7MB in the beginning and 60.4MB in the end (delta: 7.3MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2022-07-12 10:15:23,172 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 53.3MB in the beginning and 53.3MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 10:15:23,172 INFO L158 Benchmark]: CACSL2BoogieTranslator took 697.04ms. Allocated memory is still 102.8MB. Free memory was 67.4MB in the beginning and 50.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-12 10:15:23,173 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.21ms. Allocated memory is still 102.8MB. Free memory was 50.6MB in the beginning and 48.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 10:15:23,173 INFO L158 Benchmark]: Boogie Preprocessor took 52.68ms. Allocated memory is still 102.8MB. Free memory was 48.1MB in the beginning and 45.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 10:15:23,174 INFO L158 Benchmark]: RCFGBuilder took 497.78ms. Allocated memory is still 102.8MB. Free memory was 45.4MB in the beginning and 67.1MB in the end (delta: -21.7MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2022-07-12 10:15:23,174 INFO L158 Benchmark]: TraceAbstraction took 648.14ms. Allocated memory is still 102.8MB. Free memory was 67.1MB in the beginning and 66.7MB in the end (delta: 390.1kB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2022-07-12 10:15:23,175 INFO L158 Benchmark]: Witness Printer took 58.64ms. Allocated memory is still 102.8MB. Free memory was 66.7MB in the beginning and 60.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-12 10:15:23,180 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 83.9MB. Free memory was 53.3MB in the beginning and 53.3MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 697.04ms. Allocated memory is still 102.8MB. Free memory was 67.4MB in the beginning and 50.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.21ms. Allocated memory is still 102.8MB. Free memory was 50.6MB in the beginning and 48.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.68ms. Allocated memory is still 102.8MB. Free memory was 48.1MB in the beginning and 45.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 497.78ms. Allocated memory is still 102.8MB. Free memory was 45.4MB in the beginning and 67.1MB in the end (delta: -21.7MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * TraceAbstraction took 648.14ms. Allocated memory is still 102.8MB. Free memory was 67.1MB in the beginning and 66.7MB in the end (delta: 390.1kB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. * Witness Printer took 58.64ms. Allocated memory is still 102.8MB. Free memory was 66.7MB in the beginning and 60.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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: [L1351] 0 int g; VAL [g=0] [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [g=0, mut={4:0}] [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; VAL [cond={5:0}, g=0, mut={4:0}] [L1373] 0 pthread_t t1; VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={5:0}, g=0, mut={4:0}, t1={7:0}] [L1374] 0 pthread_t t2; VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={5:0}, g=0, mut={4:0}, t1={7:0}, t2={6:0}] [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={5:0}, g=0, mut={4:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=-1, ptr={0:0}, t1={7:0}, t2={6:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={5:0}, g=0, mut={4:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=0, ptr={0:0}, t1={7:0}, t2={6:0}] [L1365] CALL 2 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 2 !(cond) VAL [\old(cond)=0, cond={5:0}, cond=0, g=0, mut={4:0}, ptr={0:0}] [L19] 2 reach_error() VAL [\old(cond)=0, cond={5:0}, cond=0, g=0, mut={4:0}, ptr={0:0}] - UnprovableResult [Line: 1375]: 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. - UnprovableResult [Line: 1377]: 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 5 procedures, 127 locations, 4 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: 0.5s, 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=159occurred 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, 57 NumberOfCodeBlocks, 57 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 10:15:23,213 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