./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version da95e156 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/pthread-complex/elimination_backoff_stack.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8be8ef5df161ec8607fcf260b448695cdc595d4f ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/pthread-complex/elimination_backoff_stack.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8be8ef5df161ec8607fcf260b448695cdc595d4f .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-da95e15 [2019-11-27 10:17:30,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 10:17:30,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 10:17:30,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 10:17:30,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 10:17:30,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 10:17:30,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 10:17:30,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 10:17:30,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 10:17:30,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 10:17:30,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 10:17:30,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 10:17:30,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 10:17:30,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 10:17:30,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 10:17:30,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 10:17:30,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 10:17:30,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 10:17:30,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 10:17:30,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 10:17:30,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 10:17:30,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 10:17:30,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 10:17:30,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 10:17:30,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 10:17:30,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 10:17:30,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 10:17:30,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 10:17:30,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 10:17:30,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 10:17:30,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 10:17:30,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 10:17:30,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 10:17:30,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 10:17:30,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 10:17:30,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 10:17:30,692 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 10:17:30,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 10:17:30,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 10:17:30,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 10:17:30,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 10:17:30,700 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 10:17:30,738 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 10:17:30,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 10:17:30,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 10:17:30,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 10:17:30,746 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 10:17:30,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 10:17:30,749 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 10:17:30,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 10:17:30,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 10:17:30,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 10:17:30,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 10:17:30,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 10:17:30,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 10:17:30,754 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 10:17:30,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 10:17:30,755 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 10:17:30,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 10:17:30,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 10:17:30,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 10:17:30,757 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 10:17:30,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 10:17:30,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 10:17:30,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 10:17:30,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 10:17:30,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 10:17:30,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 10:17:30,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 10:17:30,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 10:17:30,763 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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(__VERIFIER_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 -> 8be8ef5df161ec8607fcf260b448695cdc595d4f [2019-11-27 10:17:31,272 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 10:17:31,307 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 10:17:31,315 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 10:17:31,320 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 10:17:31,321 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 10:17:31,322 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i [2019-11-27 10:17:31,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eead5eea1/c0a1a4c0efdb40f6973bb2e58c048710/FLAG619be1e22 [2019-11-27 10:17:32,864 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 10:17:32,869 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i [2019-11-27 10:17:32,921 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eead5eea1/c0a1a4c0efdb40f6973bb2e58c048710/FLAG619be1e22 [2019-11-27 10:17:32,963 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eead5eea1/c0a1a4c0efdb40f6973bb2e58c048710 [2019-11-27 10:17:32,974 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 10:17:32,976 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 10:17:32,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 10:17:32,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 10:17:32,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 10:17:32,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:17:32" (1/1) ... [2019-11-27 10:17:33,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fad7393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:32, skipping insertion in model container [2019-11-27 10:17:33,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:17:32" (1/1) ... [2019-11-27 10:17:33,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 10:17:33,170 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 10:17:34,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 10:17:35,026 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 10:17:35,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 10:17:36,050 INFO L208 MainTranslator]: Completed translation [2019-11-27 10:17:36,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:36 WrapperNode [2019-11-27 10:17:36,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 10:17:36,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 10:17:36,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 10:17:36,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 10:17:36,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:36" (1/1) ... [2019-11-27 10:17:36,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:36" (1/1) ... [2019-11-27 10:17:36,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 10:17:36,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 10:17:36,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 10:17:36,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 10:17:36,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:36" (1/1) ... [2019-11-27 10:17:36,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:36" (1/1) ... [2019-11-27 10:17:36,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:36" (1/1) ... [2019-11-27 10:17:36,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:36" (1/1) ... [2019-11-27 10:17:36,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:36" (1/1) ... [2019-11-27 10:17:36,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:36" (1/1) ... [2019-11-27 10:17:36,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:36" (1/1) ... [2019-11-27 10:17:36,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 10:17:36,951 INFO L168 Benchmark]: Toolchain (without parser) took 3970.78 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 847.4 MB in the end (delta: 114.3 MB). Peak memory consumption was 114.4 MB. Max. memory is 12.5 GB. [2019-11-27 10:17:36,954 INFO L168 Benchmark]: CDTParser took 3.64 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 10:17:36,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3076.44 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 956.0 MB in the beginning and 881.8 MB in the end (delta: 74.2 MB). Peak memory consumption was 74.2 MB. Max. memory is 12.5 GB. [2019-11-27 10:17:36,962 INFO L168 Benchmark]: Boogie Procedure Inliner took 445.93 ms. Allocated memory is still 1.0 GB. Free memory was 881.8 MB in the beginning and 864.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 12.5 GB. [2019-11-27 10:17:36,967 INFO L168 Benchmark]: Boogie Preprocessor took 439.84 ms. Allocated memory is still 1.0 GB. Free memory was 864.6 MB in the beginning and 847.4 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 12.5 GB. [2019-11-27 10:17:36,978 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.64 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 3076.44 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 956.0 MB in the beginning and 881.8 MB in the end (delta: 74.2 MB). Peak memory consumption was 74.2 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 445.93 ms. Allocated memory is still 1.0 GB. Free memory was 881.8 MB in the beginning and 864.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 439.84 ms. Allocated memory is still 1.0 GB. Free memory was 864.6 MB in the beginning and 847.4 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-da95e15 [2019-11-27 10:17:41,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 10:17:41,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 10:17:41,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 10:17:41,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 10:17:41,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 10:17:41,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 10:17:41,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 10:17:41,062 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 10:17:41,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 10:17:41,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 10:17:41,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 10:17:41,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 10:17:41,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 10:17:41,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 10:17:41,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 10:17:41,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 10:17:41,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 10:17:41,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 10:17:41,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 10:17:41,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 10:17:41,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 10:17:41,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 10:17:41,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 10:17:41,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 10:17:41,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 10:17:41,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 10:17:41,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 10:17:41,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 10:17:41,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 10:17:41,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 10:17:41,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 10:17:41,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 10:17:41,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 10:17:41,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 10:17:41,152 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 10:17:41,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 10:17:41,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 10:17:41,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 10:17:41,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 10:17:41,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 10:17:41,162 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 10:17:41,205 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 10:17:41,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 10:17:41,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 10:17:41,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 10:17:41,211 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 10:17:41,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 10:17:41,214 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 10:17:41,214 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 10:17:41,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 10:17:41,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 10:17:41,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 10:17:41,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 10:17:41,217 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 10:17:41,217 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 10:17:41,219 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 10:17:41,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 10:17:41,219 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 10:17:41,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 10:17:41,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 10:17:41,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 10:17:41,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 10:17:41,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 10:17:41,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 10:17:41,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 10:17:41,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 10:17:41,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 10:17:41,225 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 10:17:41,226 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 10:17:41,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 10:17:41,227 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 10:17:41,229 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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(__VERIFIER_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 -> 8be8ef5df161ec8607fcf260b448695cdc595d4f [2019-11-27 10:17:41,770 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 10:17:41,796 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 10:17:41,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 10:17:41,808 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 10:17:41,811 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 10:17:41,813 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i [2019-11-27 10:17:41,969 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4d18d9a5/a05f1450e0564cd69df316b8168b1945/FLAGb156d9c94 [2019-11-27 10:17:43,328 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 10:17:43,331 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i [2019-11-27 10:17:43,383 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4d18d9a5/a05f1450e0564cd69df316b8168b1945/FLAGb156d9c94 [2019-11-27 10:17:43,424 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4d18d9a5/a05f1450e0564cd69df316b8168b1945 [2019-11-27 10:17:43,435 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 10:17:43,440 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 10:17:43,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 10:17:43,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 10:17:43,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 10:17:43,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:17:43" (1/1) ... [2019-11-27 10:17:43,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fad7393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:43, skipping insertion in model container [2019-11-27 10:17:43,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:17:43" (1/1) ... [2019-11-27 10:17:43,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 10:17:43,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 10:17:45,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 10:17:45,637 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 10:17:45,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 10:17:46,750 INFO L208 MainTranslator]: Completed translation [2019-11-27 10:17:46,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:46 WrapperNode [2019-11-27 10:17:46,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 10:17:46,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 10:17:46,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 10:17:46,756 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 10:17:46,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:46" (1/1) ... [2019-11-27 10:17:46,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:46" (1/1) ... [2019-11-27 10:17:47,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 10:17:47,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 10:17:47,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 10:17:47,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 10:17:47,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:46" (1/1) ... [2019-11-27 10:17:47,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:46" (1/1) ... [2019-11-27 10:17:47,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:46" (1/1) ... [2019-11-27 10:17:47,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:46" (1/1) ... [2019-11-27 10:17:47,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:46" (1/1) ... [2019-11-27 10:17:47,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:46" (1/1) ... [2019-11-27 10:17:47,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:17:46" (1/1) ... [2019-11-27 10:17:47,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 10:17:47,700 INFO L168 Benchmark]: Toolchain (without parser) took 4257.34 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 840.3 MB in the end (delta: 121.4 MB). Peak memory consumption was 121.5 MB. Max. memory is 12.5 GB. [2019-11-27 10:17:47,702 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 10:17:47,706 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3305.86 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 956.0 MB in the beginning and 880.4 MB in the end (delta: 75.6 MB). Peak memory consumption was 75.7 MB. Max. memory is 12.5 GB. [2019-11-27 10:17:47,710 INFO L168 Benchmark]: Boogie Procedure Inliner took 472.41 ms. Allocated memory is still 1.0 GB. Free memory was 880.4 MB in the beginning and 863.2 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 12.5 GB. [2019-11-27 10:17:47,714 INFO L168 Benchmark]: Boogie Preprocessor took 468.37 ms. Allocated memory is still 1.0 GB. Free memory was 863.2 MB in the beginning and 840.3 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 12.5 GB. [2019-11-27 10:17:47,723 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 3305.86 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 956.0 MB in the beginning and 880.4 MB in the end (delta: 75.6 MB). Peak memory consumption was 75.7 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 472.41 ms. Allocated memory is still 1.0 GB. Free memory was 880.4 MB in the beginning and 863.2 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 468.37 ms. Allocated memory is still 1.0 GB. Free memory was 863.2 MB in the beginning and 840.3 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...