./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 35987657 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-?-3598765 [2022-07-21 08:49:59,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 08:49:59,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 08:49:59,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 08:49:59,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 08:49:59,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 08:49:59,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 08:49:59,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 08:49:59,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 08:49:59,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 08:49:59,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 08:49:59,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 08:49:59,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 08:49:59,514 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 08:49:59,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 08:49:59,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 08:49:59,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 08:49:59,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 08:49:59,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 08:49:59,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 08:49:59,532 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 08:49:59,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 08:49:59,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 08:49:59,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 08:49:59,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 08:49:59,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 08:49:59,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 08:49:59,538 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 08:49:59,538 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 08:49:59,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 08:49:59,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 08:49:59,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 08:49:59,543 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 08:49:59,544 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 08:49:59,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 08:49:59,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 08:49:59,547 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 08:49:59,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 08:49:59,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 08:49:59,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 08:49:59,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 08:49:59,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 08:49:59,552 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 08:49:59,573 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 08:49:59,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 08:49:59,574 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 08:49:59,574 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 08:49:59,575 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 08:49:59,575 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 08:49:59,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 08:49:59,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 08:49:59,576 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 08:49:59,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 08:49:59,576 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 08:49:59,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 08:49:59,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 08:49:59,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 08:49:59,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 08:49:59,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 08:49:59,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 08:49:59,578 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 08:49:59,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 08:49:59,578 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 08:49:59,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 08:49:59,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 08:49:59,579 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 08:49:59,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 08:49:59,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:49:59,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 08:49:59,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 08:49:59,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 08:49:59,580 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 08:49:59,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 08:49:59,580 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 08:49:59,580 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 08:49:59,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 08:49:59,581 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78eedbb170ccb94e306b53f35c5dd71f86d003c1abe4d157fc2c720e38b8df88 [2022-07-21 08:49:59,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 08:49:59,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 08:49:59,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 08:49:59,861 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 08:49:59,861 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 08:49:59,862 INFO L432 ainManager$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 [2022-07-21 08:49:59,908 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69c4c1ff9/b30fa22215274dcc95f69f522f9e3975/FLAG1785bdeb2 [2022-07-21 08:50:00,293 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 08:50:00,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-07-21 08:50:00,317 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69c4c1ff9/b30fa22215274dcc95f69f522f9e3975/FLAG1785bdeb2 [2022-07-21 08:50:00,659 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69c4c1ff9/b30fa22215274dcc95f69f522f9e3975 [2022-07-21 08:50:00,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 08:50:00,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 08:50:00,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 08:50:00,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 08:50:00,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 08:50:00,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:50:00" (1/1) ... [2022-07-21 08:50:00,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a457419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:00, skipping insertion in model container [2022-07-21 08:50:00,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:50:00" (1/1) ... [2022-07-21 08:50:00,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 08:50:00,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 08:50:00,811 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] [2022-07-21 08:50:00,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:50:01,005 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 08:50:01,013 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] [2022-07-21 08:50:01,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:50:01,128 INFO L208 MainTranslator]: Completed translation [2022-07-21 08:50:01,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:01 WrapperNode [2022-07-21 08:50:01,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 08:50:01,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 08:50:01,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 08:50:01,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 08:50:01,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:01" (1/1) ... [2022-07-21 08:50:01,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:01" (1/1) ... [2022-07-21 08:50:01,204 INFO L137 Inliner]: procedures = 354, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2022-07-21 08:50:01,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 08:50:01,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 08:50:01,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 08:50:01,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 08:50:01,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:01" (1/1) ... [2022-07-21 08:50:01,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:01" (1/1) ... [2022-07-21 08:50:01,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:01" (1/1) ... [2022-07-21 08:50:01,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:01" (1/1) ... [2022-07-21 08:50:01,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:01" (1/1) ... [2022-07-21 08:50:01,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:01" (1/1) ... [2022-07-21 08:50:01,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:01" (1/1) ... [2022-07-21 08:50:01,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 08:50:01,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 08:50:01,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 08:50:01,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 08:50:01,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:01" (1/1) ... [2022-07-21 08:50:01,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:50:01,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 08:50:01,293 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) [2022-07-21 08:50:01,309 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 [2022-07-21 08:50:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-07-21 08:50:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-07-21 08:50:01,326 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-07-21 08:50:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-07-21 08:50:01,327 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-07-21 08:50:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 08:50:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 08:50:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 08:50:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 08:50:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-21 08:50:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 08:50:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 08:50:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 08:50:01,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 08:50:01,329 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-21 08:50:01,583 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 08:50:01,584 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 08:50:01,746 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 08:50:01,754 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 08:50:01,754 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 08:50:01,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:50:01 BoogieIcfgContainer [2022-07-21 08:50:01,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 08:50:01,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 08:50:01,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 08:50:01,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 08:50:01,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:50:00" (1/3) ... [2022-07-21 08:50:01,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc8fb7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:50:01, skipping insertion in model container [2022-07-21 08:50:01,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:50:01" (2/3) ... [2022-07-21 08:50:01,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc8fb7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:50:01, skipping insertion in model container [2022-07-21 08:50:01,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:50:01" (3/3) ... [2022-07-21 08:50:01,762 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-07-21 08:50:01,766 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-21 08:50:01,772 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 08:50:01,772 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 08:50:01,773 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-21 08:50:01,817 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-21 08:50:01,853 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 95 transitions, 206 flow [2022-07-21 08:50:01,904 INFO L129 PetriNetUnfolder]: 1/93 cut-off events. [2022-07-21 08:50:01,905 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-21 08:50:01,908 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. [2022-07-21 08:50:01,909 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 95 transitions, 206 flow [2022-07-21 08:50:01,912 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 75 transitions, 159 flow [2022-07-21 08:50:01,924 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 08:50:01,929 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@50b1c3f4, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7f0fa504 [2022-07-21 08:50:01,930 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-21 08:50:01,952 INFO L129 PetriNetUnfolder]: 0/71 cut-off events. [2022-07-21 08:50:01,952 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-21 08:50:01,952 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:50:01,953 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] [2022-07-21 08:50:01,954 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-07-21 08:50:01,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:50:01,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1499020934, now seen corresponding path program 1 times [2022-07-21 08:50:01,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:50:01,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795781159] [2022-07-21 08:50:01,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:50:01,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:50:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 08:50:02,179 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 08:50:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 08:50:02,260 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 08:50:02,263 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 08:50:02,264 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-07-21 08:50:02,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-07-21 08:50:02,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-07-21 08:50:02,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-07-21 08:50:02,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 08:50:02,267 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-21 08:50:02,273 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-21 08:50:02,273 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 08:50:02,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:50:02 BasicIcfg [2022-07-21 08:50:02,327 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 08:50:02,329 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 08:50:02,329 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 08:50:02,329 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 08:50:02,329 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:50:01" (3/4) ... [2022-07-21 08:50:02,331 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-21 08:50:02,383 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 08:50:02,383 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 08:50:02,384 INFO L158 Benchmark]: Toolchain (without parser) took 1720.96ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 38.0MB in the beginning and 33.6MB in the end (delta: 4.5MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2022-07-21 08:50:02,384 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 60.8MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 81.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 08:50:02,385 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.50ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 37.9MB in the beginning and 45.7MB in the end (delta: -7.9MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2022-07-21 08:50:02,385 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.95ms. Allocated memory is still 73.4MB. Free memory was 45.7MB in the beginning and 42.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-21 08:50:02,385 INFO L158 Benchmark]: Boogie Preprocessor took 35.99ms. Allocated memory is still 73.4MB. Free memory was 42.8MB in the beginning and 40.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 08:50:02,386 INFO L158 Benchmark]: RCFGBuilder took 513.27ms. Allocated memory is still 73.4MB. Free memory was 40.4MB in the beginning and 42.7MB in the end (delta: -2.2MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2022-07-21 08:50:02,386 INFO L158 Benchmark]: TraceAbstraction took 568.29ms. Allocated memory is still 73.4MB. Free memory was 42.2MB in the beginning and 40.0MB in the end (delta: 2.2MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2022-07-21 08:50:02,386 INFO L158 Benchmark]: Witness Printer took 54.39ms. Allocated memory is still 73.4MB. Free memory was 40.0MB in the beginning and 33.6MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-21 08:50:02,391 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 60.8MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 81.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 464.50ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 37.9MB in the beginning and 45.7MB in the end (delta: -7.9MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.95ms. Allocated memory is still 73.4MB. Free memory was 45.7MB in the beginning and 42.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.99ms. Allocated memory is still 73.4MB. Free memory was 42.8MB in the beginning and 40.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 513.27ms. Allocated memory is still 73.4MB. Free memory was 40.4MB in the beginning and 42.7MB in the end (delta: -2.2MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * TraceAbstraction took 568.29ms. Allocated memory is still 73.4MB. Free memory was 42.2MB in the beginning and 40.0MB in the end (delta: 2.2MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * Witness Printer took 54.39ms. Allocated memory is still 73.4MB. Free memory was 40.0MB in the beginning and 33.6MB in the end (delta: 6.4MB). 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=0, cond={5:0}, 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: 0.4s, 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! [2022-07-21 08:50:02,423 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