./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.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_true.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 4f5c1949da3ffd7703b26279578bf3cad55c86e8b0ffaff69f49645cdd541f53 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 10:15:19,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 10:15:19,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 10:15:19,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 10:15:19,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 10:15:19,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 10:15:19,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 10:15:19,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 10:15:19,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 10:15:19,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 10:15:19,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 10:15:19,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 10:15:19,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 10:15:19,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 10:15:19,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 10:15:19,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 10:15:19,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 10:15:19,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 10:15:19,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 10:15:19,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 10:15:19,830 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 10:15:19,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 10:15:19,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 10:15:19,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 10:15:19,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 10:15:19,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 10:15:19,837 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 10:15:19,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 10:15:19,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 10:15:19,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 10:15:19,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 10:15:19,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 10:15:19,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 10:15:19,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 10:15:19,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 10:15:19,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 10:15:19,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 10:15:19,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 10:15:19,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 10:15:19,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 10:15:19,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 10:15:19,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 10:15:19,849 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 10:15:19,879 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 10:15:19,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 10:15:19,880 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 10:15:19,881 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 10:15:19,881 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 10:15:19,881 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 10:15:19,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 10:15:19,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 10:15:19,882 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 10:15:19,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 10:15:19,883 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 10:15:19,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 10:15:19,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 10:15:19,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 10:15:19,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 10:15:19,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 10:15:19,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 10:15:19,885 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 10:15:19,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 10:15:19,886 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 10:15:19,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 10:15:19,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 10:15:19,887 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 10:15:19,887 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 10:15:19,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:15:19,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 10:15:19,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 10:15:19,888 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 10:15:19,888 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 10:15:19,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 10:15:19,888 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 10:15:19,889 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 10:15:19,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 10:15:19,889 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f5c1949da3ffd7703b26279578bf3cad55c86e8b0ffaff69f49645cdd541f53 [2022-07-12 10:15:20,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 10:15:20,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 10:15:20,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 10:15:20,174 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 10:15:20,175 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 10:15:20,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2022-07-12 10:15:20,246 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a0165d04/6d1ce893ebbb40298ded818f5142ea24/FLAG8c02a3ecb [2022-07-12 10:15:20,764 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 10:15:20,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2022-07-12 10:15:20,783 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a0165d04/6d1ce893ebbb40298ded818f5142ea24/FLAG8c02a3ecb [2022-07-12 10:15:21,232 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a0165d04/6d1ce893ebbb40298ded818f5142ea24 [2022-07-12 10:15:21,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 10:15:21,236 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 10:15:21,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 10:15:21,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 10:15:21,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 10:15:21,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:15:21" (1/1) ... [2022-07-12 10:15:21,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20e33eef 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 10:15:21,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:15:21" (1/1) ... [2022-07-12 10:15:21,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 10:15:21,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 10:15:21,471 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_true.i[1094,1107] [2022-07-12 10:15:21,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:15:21,706 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 10:15:21,717 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_true.i[1094,1107] [2022-07-12 10:15:21,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:15:21,872 INFO L208 MainTranslator]: Completed translation [2022-07-12 10:15:21,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:15:21 WrapperNode [2022-07-12 10:15:21,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 10:15:21,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 10:15:21,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 10:15:21,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 10:15:21,881 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 10:15:21,913 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 10:15:21,951 INFO L137 Inliner]: procedures = 354, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80 [2022-07-12 10:15:21,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 10:15:21,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 10:15:21,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 10:15:21,953 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 10:15:21,959 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 10:15:21,960 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 10:15:21,975 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 10:15:21,976 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 10:15:21,987 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 10:15:22,003 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 10:15:22,006 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 10:15:22,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 10:15:22,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 10:15:22,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 10:15:22,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 10:15:22,023 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 10:15:22,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:15:22,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:15:22,055 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 10:15:22,066 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 10:15:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-07-12 10:15:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-07-12 10:15:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-07-12 10:15:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-07-12 10:15:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-07-12 10:15:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 10:15:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 10:15:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 10:15:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 10:15:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-12 10:15:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 10:15:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 10:15:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 10:15:22,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 10:15:22,096 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 10:15:22,384 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 10:15:22,385 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 10:15:22,532 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 10:15:22,538 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 10:15:22,538 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 10:15:22,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:15:22 BoogieIcfgContainer [2022-07-12 10:15:22,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 10:15:22,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 10:15:22,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 10:15:22,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 10:15:22,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 10:15:21" (1/3) ... [2022-07-12 10:15:22,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702ee7cd 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 10:15:22,546 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 10:15:22,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702ee7cd 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 10:15:22,547 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 10:15:22,548 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_true.i [2022-07-12 10:15:22,553 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-12 10:15:22,561 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 10:15:22,561 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 10:15:22,561 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-12 10:15:22,615 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-12 10:15:22,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 95 transitions, 206 flow [2022-07-12 10:15:22,686 INFO L129 PetriNetUnfolder]: 1/93 cut-off events. [2022-07-12 10:15:22,686 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-12 10:15:22,692 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 60 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2022-07-12 10:15:22,692 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 95 transitions, 206 flow [2022-07-12 10:15:22,698 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 71 transitions, 148 flow [2022-07-12 10:15:22,716 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 10:15:22,724 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@6e49847b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7142b1b4 [2022-07-12 10:15:22,724 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-12 10:15:22,754 INFO L129 PetriNetUnfolder]: 0/68 cut-off events. [2022-07-12 10:15:22,754 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-12 10:15:22,755 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:15:22,755 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] [2022-07-12 10:15:22,756 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-07-12 10:15:22,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:15:22,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1366006769, now seen corresponding path program 1 times [2022-07-12 10:15:22,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:15:22,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288900289] [2022-07-12 10:15:22,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:15:22,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:15:22,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:15:23,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:15:23,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:15:23,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288900289] [2022-07-12 10:15:23,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288900289] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:15:23,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:15:23,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:15:23,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663724281] [2022-07-12 10:15:23,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:15:23,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:15:23,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:15:23,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:15:23,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:15:23,252 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 95 [2022-07-12 10:15:23,259 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 71 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:15:23,260 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:15:23,260 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 95 [2022-07-12 10:15:23,261 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:15:23,372 INFO L129 PetriNetUnfolder]: 6/114 cut-off events. [2022-07-12 10:15:23,372 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-07-12 10:15:23,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 114 events. 6/114 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 219 event pairs, 0 based on Foata normal form. 4/118 useless extension candidates. Maximal degree in co-relation 112. Up to 10 conditions per place. [2022-07-12 10:15:23,374 INFO L132 encePairwiseOnDemand]: 90/95 looper letters, 8 selfloop transitions, 2 changer transitions 10/82 dead transitions. [2022-07-12 10:15:23,375 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 82 transitions, 219 flow [2022-07-12 10:15:23,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 10:15:23,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-12 10:15:23,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 582 transitions. [2022-07-12 10:15:23,393 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8751879699248121 [2022-07-12 10:15:23,394 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 582 transitions. [2022-07-12 10:15:23,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 582 transitions. [2022-07-12 10:15:23,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:15:23,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 582 transitions. [2022-07-12 10:15:23,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 83.14285714285714) internal successors, (582), 7 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:15:23,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 95.0) internal successors, (760), 8 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:15:23,413 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 95.0) internal successors, (760), 8 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:15:23,414 INFO L186 Difference]: Start difference. First operand has 78 places, 71 transitions, 148 flow. Second operand 7 states and 582 transitions. [2022-07-12 10:15:23,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 82 transitions, 219 flow [2022-07-12 10:15:23,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 82 transitions, 214 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-07-12 10:15:23,421 INFO L242 Difference]: Finished difference. Result has 87 places, 71 transitions, 162 flow [2022-07-12 10:15:23,422 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=162, PETRI_PLACES=87, PETRI_TRANSITIONS=71} [2022-07-12 10:15:23,432 INFO L279 CegarLoopForPetriNet]: 78 programPoint places, 9 predicate places. [2022-07-12 10:15:23,433 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 71 transitions, 162 flow [2022-07-12 10:15:23,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:15:23,434 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:15:23,434 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:15:23,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 10:15:23,434 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-07-12 10:15:23,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:15:23,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1416224719, now seen corresponding path program 1 times [2022-07-12 10:15:23,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:15:23,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717855182] [2022-07-12 10:15:23,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:15:23,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:15:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:15:23,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:15:23,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:15:23,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717855182] [2022-07-12 10:15:23,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717855182] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:15:23,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:15:23,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 10:15:23,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119369778] [2022-07-12 10:15:23,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:15:23,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 10:15:23,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:15:23,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 10:15:23,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 10:15:23,565 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 95 [2022-07-12 10:15:23,566 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 71 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:15:23,566 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:15:23,566 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 95 [2022-07-12 10:15:23,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:15:23,608 INFO L129 PetriNetUnfolder]: 3/88 cut-off events. [2022-07-12 10:15:23,608 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-12 10:15:23,610 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 88 events. 3/88 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 86 event pairs, 1 based on Foata normal form. 4/90 useless extension candidates. Maximal degree in co-relation 123. Up to 13 conditions per place. [2022-07-12 10:15:23,611 INFO L132 encePairwiseOnDemand]: 90/95 looper letters, 9 selfloop transitions, 5 changer transitions 0/72 dead transitions. [2022-07-12 10:15:23,611 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 72 transitions, 194 flow [2022-07-12 10:15:23,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 10:15:23,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-12 10:15:23,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2022-07-12 10:15:23,613 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8701754385964913 [2022-07-12 10:15:23,613 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2022-07-12 10:15:23,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2022-07-12 10:15:23,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:15:23,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2022-07-12 10:15:23,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:15:23,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:15:23,616 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:15:23,616 INFO L186 Difference]: Start difference. First operand has 87 places, 71 transitions, 162 flow. Second operand 3 states and 248 transitions. [2022-07-12 10:15:23,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 72 transitions, 194 flow [2022-07-12 10:15:23,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 72 transitions, 184 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-07-12 10:15:23,619 INFO L242 Difference]: Finished difference. Result has 80 places, 71 transitions, 162 flow [2022-07-12 10:15:23,619 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=80, PETRI_TRANSITIONS=71} [2022-07-12 10:15:23,620 INFO L279 CegarLoopForPetriNet]: 78 programPoint places, 2 predicate places. [2022-07-12 10:15:23,620 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 71 transitions, 162 flow [2022-07-12 10:15:23,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:15:23,620 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:15:23,621 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:15:23,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 10:15:23,621 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-07-12 10:15:23,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:15:23,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1264517384, now seen corresponding path program 1 times [2022-07-12 10:15:23,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:15:23,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351950103] [2022-07-12 10:15:23,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:15:23,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:15:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 10:15:23,659 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 10:15:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 10:15:23,723 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 10:15:23,723 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 10:15:23,724 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-07-12 10:15:23,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-07-12 10:15:23,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-07-12 10:15:23,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-07-12 10:15:23,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 10:15:23,728 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-12 10:15:23,734 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-12 10:15:23,735 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 10:15:23,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 10:15:23 BasicIcfg [2022-07-12 10:15:23,794 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 10:15:23,795 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 10:15:23,795 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 10:15:23,795 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 10:15:23,795 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 10:15:23,797 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-12 10:15:23,839 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 10:15:23,839 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 10:15:23,840 INFO L158 Benchmark]: Toolchain (without parser) took 2603.99ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 50.7MB in the beginning and 44.2MB in the end (delta: 6.5MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2022-07-12 10:15:23,840 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 86.0MB. Free memory is still 44.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 10:15:23,841 INFO L158 Benchmark]: CACSL2BoogieTranslator took 633.81ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 50.5MB in the beginning and 53.0MB in the end (delta: -2.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-12 10:15:23,841 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.81ms. Allocated memory is still 104.9MB. Free memory was 53.0MB in the beginning and 49.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-12 10:15:23,841 INFO L158 Benchmark]: Boogie Preprocessor took 68.75ms. Allocated memory is still 104.9MB. Free memory was 49.8MB in the beginning and 47.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 10:15:23,842 INFO L158 Benchmark]: RCFGBuilder took 518.66ms. Allocated memory is still 104.9MB. Free memory was 47.7MB in the beginning and 74.9MB in the end (delta: -27.2MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2022-07-12 10:15:23,842 INFO L158 Benchmark]: TraceAbstraction took 1252.29ms. Allocated memory is still 104.9MB. Free memory was 74.9MB in the beginning and 52.0MB in the end (delta: 23.0MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2022-07-12 10:15:23,843 INFO L158 Benchmark]: Witness Printer took 44.60ms. Allocated memory is still 104.9MB. Free memory was 52.0MB in the beginning and 44.2MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 10:15:23,844 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 86.0MB. Free memory is still 44.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 633.81ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 50.5MB in the beginning and 53.0MB in the end (delta: -2.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.81ms. Allocated memory is still 104.9MB. Free memory was 53.0MB in the beginning and 49.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.75ms. Allocated memory is still 104.9MB. Free memory was 49.8MB in the beginning and 47.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 518.66ms. Allocated memory is still 104.9MB. Free memory was 47.7MB in the beginning and 74.9MB in the end (delta: -27.2MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1252.29ms. Allocated memory is still 104.9MB. Free memory was 74.9MB in the beginning and 52.0MB in the end (delta: 23.0MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Witness Printer took 44.60ms. Allocated memory is still 104.9MB. Free memory was 52.0MB in the beginning and 44.2MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. 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, 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}] [L1356] 1 g = 1 VAL [cond={5:0}, g=1, mut={4:0}, ptr={0:0}, ptr={0:0}, ptr={0:0}, ptr={0:0}] [L1366] 2 g = 0 VAL [cond={5:0}, g=0, mut={4:0}, ptr={0:0}, ptr={0:0}] [L1358] CALL 1 __VERIFIER_assert(g == 1) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0, cond={5:0}, g=0, mut={4:0}, ptr={0:0}, ptr={0:0}] [L19] 1 reach_error() VAL [\old(cond)=0, cond={5:0}, cond=0, g=0, mut={4:0}, ptr={0:0}, ptr={0:0}] - 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. - 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. - 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: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 17 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=1, InterpolantAutomatonStates: 10, 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, 0.3s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 207 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 10:15:23,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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