./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/pthread-atomic/gcd-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ff7d849d-f30b-47d7-9721-c86ce4073f85/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ff7d849d-f30b-47d7-9721-c86ce4073f85/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ff7d849d-f30b-47d7-9721-c86ce4073f85/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ff7d849d-f30b-47d7-9721-c86ce4073f85/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/pthread-atomic/gcd-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ff7d849d-f30b-47d7-9721-c86ce4073f85/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ff7d849d-f30b-47d7-9721-c86ce4073f85/bin/uautomizer --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 bcc2c6a6cd7cbcbc8283eb33ec126985d628a9eb ............................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_ff7d849d-f30b-47d7-9721-c86ce4073f85/bin/uautomizer/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 --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:37:11,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:37:11,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:37:11,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:37:11,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:37:11,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:37:11,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:37:11,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:37:11,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:37:11,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:37:11,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:37:11,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:37:11,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:37:11,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:37:11,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:37:11,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:37:11,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:37:11,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:37:11,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:37:11,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:37:11,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:37:11,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:37:11,760 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:37:11,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:37:11,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:37:11,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:37:11,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:37:11,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:37:11,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:37:11,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:37:11,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:37:11,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:37:11,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:37:11,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:37:11,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:37:11,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:37:11,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:37:11,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:37:11,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:37:11,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:37:11,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:37:11,797 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ff7d849d-f30b-47d7-9721-c86ce4073f85/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 23:37:11,832 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:37:11,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:37:11,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:37:11,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:37:11,834 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:37:11,834 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:37:11,834 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:37:11,834 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:37:11,834 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:37:11,835 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:37:11,835 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:37:11,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:37:11,835 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:37:11,835 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:37:11,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:37:11,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:37:11,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:37:11,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:37:11,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:37:11,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:37:11,837 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:37:11,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:37:11,837 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:37:11,837 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:37:11,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:37:11,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:37:11,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:37:11,838 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:37:11,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:37:11,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:37:11,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:37:11,838 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:37:11,839 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:37:11,839 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:/tmp/vcloud-vcloud-master/worker/run_dir_ff7d849d-f30b-47d7-9721-c86ce4073f85/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ff7d849d-f30b-47d7-9721-c86ce4073f85/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bcc2c6a6cd7cbcbc8283eb33ec126985d628a9eb [2020-11-29 23:37:12,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:37:12,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:37:12,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:37:12,164 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:37:12,165 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:37:12,166 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ff7d849d-f30b-47d7-9721-c86ce4073f85/bin/uautomizer/../../sv-benchmarks/c/pthread-atomic/gcd-2.i [2020-11-29 23:37:12,238 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ff7d849d-f30b-47d7-9721-c86ce4073f85/bin/uautomizer/data/ae16a7f20/0b093f185ab64074a5c37bcee7fbda15/FLAG0712fb1ac [2020-11-29 23:37:12,761 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:37:12,761 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ff7d849d-f30b-47d7-9721-c86ce4073f85/sv-benchmarks/c/pthread-atomic/gcd-2.i [2020-11-29 23:37:12,781 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ff7d849d-f30b-47d7-9721-c86ce4073f85/bin/uautomizer/data/ae16a7f20/0b093f185ab64074a5c37bcee7fbda15/FLAG0712fb1ac [2020-11-29 23:37:13,057 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ff7d849d-f30b-47d7-9721-c86ce4073f85/bin/uautomizer/data/ae16a7f20/0b093f185ab64074a5c37bcee7fbda15 [2020-11-29 23:37:13,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:37:13,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:37:13,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:37:13,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:37:13,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:37:13,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:37:13" (1/1) ... [2020-11-29 23:37:13,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2304aecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:13, skipping insertion in model container [2020-11-29 23:37:13,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:37:13" (1/1) ... [2020-11-29 23:37:13,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:37:13,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:37:13,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:37:13,553 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:37:13,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:37:13,691 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:37:13,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:13 WrapperNode [2020-11-29 23:37:13,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:37:13,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:37:13,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:37:13,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:37:13,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:13" (1/1) ... [2020-11-29 23:37:13,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:13" (1/1) ... [2020-11-29 23:37:13,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:37:13,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:37:13,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:37:13,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:37:13,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:13" (1/1) ... [2020-11-29 23:37:13,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:13" (1/1) ... [2020-11-29 23:37:13,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:13" (1/1) ... [2020-11-29 23:37:13,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:13" (1/1) ... [2020-11-29 23:37:13,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:13" (1/1) ... [2020-11-29 23:37:13,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:13" (1/1) ... [2020-11-29 23:37:13,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:13" (1/1) ... [2020-11-29 23:37:13,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:37:13,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:37:13,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:37:13,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:37:13,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff7d849d-f30b-47d7-9721-c86ce4073f85/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 23:37:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 23:37:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:37:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:37:13,850 INFO L130 BoogieDeclarations]: Found specification of procedure dec_a [2020-11-29 23:37:13,850 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_a [2020-11-29 23:37:13,850 INFO L130 BoogieDeclarations]: Found specification of procedure dec_b [2020-11-29 23:37:13,850 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_b [2020-11-29 23:37:13,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:37:13,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:37:13,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:37:13,852 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-29 23:37:14,502 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:37:14,503 INFO L298 CfgBuilder]: Removed 32 assume(true) statements. [2020-11-29 23:37:14,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:37:14 BoogieIcfgContainer [2020-11-29 23:37:14,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:37:14,506 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:37:14,506 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:37:14,511 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:37:14,512 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:37:14,513 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:37:13" (1/3) ... [2020-11-29 23:37:14,514 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12708b3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:37:14, skipping insertion in model container [2020-11-29 23:37:14,514 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:37:14,514 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:13" (2/3) ... [2020-11-29 23:37:14,515 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12708b3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:37:14, skipping insertion in model container [2020-11-29 23:37:14,515 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:37:14,515 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:37:14" (3/3) ... [2020-11-29 23:37:14,517 INFO L373 chiAutomizerObserver]: Analyzing ICFG gcd-2.i [2020-11-29 23:37:14,577 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:37:14,577 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:37:14,577 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:37:14,578 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:37:14,578 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:37:14,578 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:37:14,578 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:37:14,578 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:37:14,591 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:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CFG2NestedWordAutomaton.constructAutomatonWithSPredicates(CFG2NestedWordAutomaton.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.getInitialAbstraction(BuchiCegarLoop.java:877) 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:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:382) 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) [2020-11-29 23:37:14,594 INFO L168 Benchmark]: Toolchain (without parser) took 1533.25 ms. Allocated memory is still 115.3 MB. Free memory was 59.4 MB in the beginning and 81.5 MB in the end (delta: -22.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:37:14,595 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 115.3 MB. Free memory is still 77.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:37:14,601 INFO L168 Benchmark]: CACSL2BoogieTranslator took 630.02 ms. Allocated memory is still 115.3 MB. Free memory was 59.2 MB in the beginning and 71.9 MB in the end (delta: -12.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:37:14,602 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.45 ms. Allocated memory is still 115.3 MB. Free memory was 71.9 MB in the beginning and 69.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:37:14,603 INFO L168 Benchmark]: Boogie Preprocessor took 32.66 ms. Allocated memory is still 115.3 MB. Free memory was 69.3 MB in the beginning and 67.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:37:14,604 INFO L168 Benchmark]: RCFGBuilder took 725.73 ms. Allocated memory is still 115.3 MB. Free memory was 67.7 MB in the beginning and 86.4 MB in the end (delta: -18.6 MB). Peak memory consumption was 30.8 MB. Max. memory is 16.1 GB. [2020-11-29 23:37:14,605 INFO L168 Benchmark]: BuchiAutomizer took 87.30 ms. Allocated memory is still 115.3 MB. Free memory was 85.7 MB in the beginning and 81.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:37:14,608 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 115.3 MB. Free memory is still 77.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 630.02 ms. Allocated memory is still 115.3 MB. Free memory was 59.2 MB in the beginning and 71.9 MB in the end (delta: -12.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.45 ms. Allocated memory is still 115.3 MB. Free memory was 71.9 MB in the beginning and 69.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.66 ms. Allocated memory is still 115.3 MB. Free memory was 69.3 MB in the beginning and 67.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 725.73 ms. Allocated memory is still 115.3 MB. Free memory was 67.7 MB in the beginning and 86.4 MB in the end (delta: -18.6 MB). Peak memory consumption was 30.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 87.30 ms. Allocated memory is still 115.3 MB. Free memory was 85.7 MB in the beginning and 81.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * 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:238) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...