./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/pthread-atomic/gcd-2.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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/AutomizerTermination.xml -i ../sv-benchmarks/c/pthread-atomic/gcd-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-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(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash abac4834eb8b1123405a2c6108c3d30e84ad22df2224a055d262e226b4ba66e1 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:37:18,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:37:18,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:37:18,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:37:18,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:37:18,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:37:18,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:37:18,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:37:18,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:37:18,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:37:18,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:37:18,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:37:18,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:37:18,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:37:18,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:37:18,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:37:18,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:37:18,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:37:18,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:37:18,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:37:18,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:37:18,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:37:18,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:37:18,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:37:18,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:37:18,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:37:18,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:37:18,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:37:18,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:37:18,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:37:18,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:37:18,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:37:18,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:37:18,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:37:18,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:37:18,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:37:18,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:37:18,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:37:18,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:37:18,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:37:18,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:37:18,998 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:37:19,028 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:37:19,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:37:19,029 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:37:19,029 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:37:19,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:37:19,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:37:19,031 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:37:19,031 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:37:19,031 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:37:19,031 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:37:19,032 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:37:19,032 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:37:19,032 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:37:19,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:37:19,033 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:37:19,033 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:37:19,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:37:19,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:37:19,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:37:19,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:37:19,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:37:19,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:37:19,034 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:37:19,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:37:19,034 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:37:19,035 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:37:19,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:37:19,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:37:19,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:37:19,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:37:19,036 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:37:19,037 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:37:19,037 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abac4834eb8b1123405a2c6108c3d30e84ad22df2224a055d262e226b4ba66e1 [2022-02-21 04:37:19,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:37:19,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:37:19,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:37:19,314 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:37:19,315 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:37:19,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/gcd-2.i [2022-02-21 04:37:19,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac738707d/2e6e9d71a4da4f8d8b30ab9f16eced57/FLAG552f9a6df [2022-02-21 04:37:19,884 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:37:19,886 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/gcd-2.i [2022-02-21 04:37:19,902 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac738707d/2e6e9d71a4da4f8d8b30ab9f16eced57/FLAG552f9a6df [2022-02-21 04:37:20,376 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac738707d/2e6e9d71a4da4f8d8b30ab9f16eced57 [2022-02-21 04:37:20,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:37:20,380 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:37:20,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:37:20,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:37:20,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:37:20,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:37:20" (1/1) ... [2022-02-21 04:37:20,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d426bea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:37:20, skipping insertion in model container [2022-02-21 04:37:20,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:37:20" (1/1) ... [2022-02-21 04:37:20,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:37:20,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:37:20,616 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/pthread-atomic/gcd-2.i[938,951] [2022-02-21 04:37:20,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:37:20,836 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:37:20,858 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/pthread-atomic/gcd-2.i[938,951] [2022-02-21 04:37:20,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:37:20,952 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:37:20,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:37:20 WrapperNode [2022-02-21 04:37:20,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:37:20,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:37:20,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:37:20,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:37:20,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:37:20" (1/1) ... [2022-02-21 04:37:20,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:37:20" (1/1) ... [2022-02-21 04:37:21,037 INFO L137 Inliner]: procedures = 174, calls = 30, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 122 [2022-02-21 04:37:21,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:37:21,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:37:21,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:37:21,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:37:21,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:37:20" (1/1) ... [2022-02-21 04:37:21,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:37:20" (1/1) ... [2022-02-21 04:37:21,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:37:20" (1/1) ... [2022-02-21 04:37:21,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:37:20" (1/1) ... [2022-02-21 04:37:21,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:37:20" (1/1) ... [2022-02-21 04:37:21,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:37:20" (1/1) ... [2022-02-21 04:37:21,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:37:20" (1/1) ... [2022-02-21 04:37:21,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:37:21,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:37:21,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:37:21,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:37:21,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:37:20" (1/1) ... [2022-02-21 04:37:21,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:37:21,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:37:21,136 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:37:21,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:37:21,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-21 04:37:21,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-21 04:37:21,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:37:21,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-21 04:37:21,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-21 04:37:21,175 INFO L130 BoogieDeclarations]: Found specification of procedure dec_a [2022-02-21 04:37:21,175 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_a [2022-02-21 04:37:21,175 INFO L130 BoogieDeclarations]: Found specification of procedure dec_b [2022-02-21 04:37:21,175 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_b [2022-02-21 04:37:21,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:37:21,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:37:21,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:37:21,177 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-21 04:37:21,307 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:37:21,308 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:37:21,546 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:37:21,663 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:37:21,664 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:37:21,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:37:21 BoogieIcfgContainer [2022-02-21 04:37:21,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:37:21,667 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:37:21,667 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:37:21,670 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:37:21,671 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:37:21,671 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:37:20" (1/3) ... [2022-02-21 04:37:21,672 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3cdde356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:37:21, skipping insertion in model container [2022-02-21 04:37:21,672 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:37:21,672 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:37:20" (2/3) ... [2022-02-21 04:37:21,672 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3cdde356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:37:21, skipping insertion in model container [2022-02-21 04:37:21,672 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:37:21,672 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:37:21" (3/3) ... [2022-02-21 04:37:21,674 INFO L388 chiAutomizerObserver]: Analyzing ICFG gcd-2.i [2022-02-21 04:37:21,751 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:37:21,751 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:37:21,751 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:37:21,751 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:37:21,752 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:37:21,758 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:37:21,759 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:37:21,759 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:37:21,770 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.UnsupportedOperationException: analysis for sequential programs does not support fork/join at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CFG2NestedWordAutomaton.constructAutomaton(CFG2NestedWordAutomaton.java:237) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CFG2NestedWordAutomaton.constructAutomatonWithSPredicates(CFG2NestedWordAutomaton.java:96) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.getInitialAbstraction(BuchiCegarLoop.java:867) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:397) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-02-21 04:37:21,784 INFO L158 Benchmark]: Toolchain (without parser) took 1403.24ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 57.6MB in the beginning and 88.4MB in the end (delta: -30.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:37:21,785 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 92.3MB. Free memory is still 49.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:37:21,785 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.85ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 57.5MB in the beginning and 82.4MB in the end (delta: -25.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:37:21,786 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.39ms. Allocated memory is still 119.5MB. Free memory was 82.0MB in the beginning and 79.5MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:37:21,786 INFO L158 Benchmark]: Boogie Preprocessor took 54.15ms. Allocated memory is still 119.5MB. Free memory was 79.5MB in the beginning and 77.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:37:21,787 INFO L158 Benchmark]: RCFGBuilder took 572.03ms. Allocated memory is still 119.5MB. Free memory was 77.8MB in the beginning and 92.6MB in the end (delta: -14.8MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2022-02-21 04:37:21,787 INFO L158 Benchmark]: BuchiAutomizer took 115.32ms. Allocated memory is still 119.5MB. Free memory was 92.6MB in the beginning and 88.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:37:21,790 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 92.3MB. Free memory is still 49.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 570.85ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 57.5MB in the beginning and 82.4MB in the end (delta: -25.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.39ms. Allocated memory is still 119.5MB. Free memory was 82.0MB in the beginning and 79.5MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.15ms. Allocated memory is still 119.5MB. Free memory was 79.5MB in the beginning and 77.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 572.03ms. Allocated memory is still 119.5MB. Free memory was 77.8MB in the beginning and 92.6MB in the end (delta: -14.8MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 115.32ms. Allocated memory is still 119.5MB. Free memory was 92.6MB in the beginning and 88.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: UnsupportedOperationException: analysis for sequential programs does not support fork/join de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: UnsupportedOperationException: analysis for sequential programs does not support fork/join: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CFG2NestedWordAutomaton.constructAutomaton(CFG2NestedWordAutomaton.java:237) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-02-21 04:37:21,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: analysis for sequential programs does not support fork/join