./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_ecbbe59f-df49-4a7b-aba5-5c0e7533b5f1/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ecbbe59f-df49-4a7b-aba5-5c0e7533b5f1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ecbbe59f-df49-4a7b-aba5-5c0e7533b5f1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ecbbe59f-df49-4a7b-aba5-5c0e7533b5f1/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/pthread-atomic/gcd-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ecbbe59f-df49-4a7b-aba5-5c0e7533b5f1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ecbbe59f-df49-4a7b-aba5-5c0e7533b5f1/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_ecbbe59f-df49-4a7b-aba5-5c0e7533b5f1/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 [2020-11-28 03:02:06,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:02:06,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:02:06,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:02:06,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:02:06,072 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:02:06,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:02:06,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:02:06,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:02:06,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:02:06,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:02:06,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:02:06,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:02:06,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:02:06,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:02:06,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:02:06,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:02:06,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:02:06,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:02:06,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:02:06,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:02:06,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:02:06,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:02:06,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:02:06,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:02:06,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:02:06,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:02:06,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:02:06,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:02:06,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:02:06,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:02:06,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:02:06,160 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:02:06,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:02:06,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:02:06,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:02:06,164 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:02:06,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:02:06,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:02:06,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:02:06,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:02:06,170 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ecbbe59f-df49-4a7b-aba5-5c0e7533b5f1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-28 03:02:06,228 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:02:06,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:02:06,231 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:02:06,231 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:02:06,231 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:02:06,232 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:02:06,232 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:02:06,232 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:02:06,232 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:02:06,233 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:02:06,234 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:02:06,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:02:06,235 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:02:06,235 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:02:06,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:02:06,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:02:06,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:02:06,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:02:06,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:02:06,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:02:06,237 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:02:06,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:02:06,245 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:02:06,245 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:02:06,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:02:06,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:02:06,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:02:06,247 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:02:06,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:02:06,249 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:02:06,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:02:06,249 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:02:06,251 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:02:06,251 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_ecbbe59f-df49-4a7b-aba5-5c0e7533b5f1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ecbbe59f-df49-4a7b-aba5-5c0e7533b5f1/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bcc2c6a6cd7cbcbc8283eb33ec126985d628a9eb [2020-11-28 03:02:06,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:02:06,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:02:06,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:02:06,665 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:02:06,666 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:02:06,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ecbbe59f-df49-4a7b-aba5-5c0e7533b5f1/bin/uautomizer/../../sv-benchmarks/c/pthread-atomic/gcd-2.i [2020-11-28 03:02:06,745 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ecbbe59f-df49-4a7b-aba5-5c0e7533b5f1/bin/uautomizer/data/56b74022a/6a9f7205b28d4aada824aa77abf6646a/FLAG34577befc [2020-11-28 03:02:07,473 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:02:07,473 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ecbbe59f-df49-4a7b-aba5-5c0e7533b5f1/sv-benchmarks/c/pthread-atomic/gcd-2.i [2020-11-28 03:02:07,514 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ecbbe59f-df49-4a7b-aba5-5c0e7533b5f1/bin/uautomizer/data/56b74022a/6a9f7205b28d4aada824aa77abf6646a/FLAG34577befc [2020-11-28 03:02:07,725 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ecbbe59f-df49-4a7b-aba5-5c0e7533b5f1/bin/uautomizer/data/56b74022a/6a9f7205b28d4aada824aa77abf6646a [2020-11-28 03:02:07,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:02:07,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:02:07,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:02:07,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:02:07,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:02:07,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:02:07" (1/1) ... [2020-11-28 03:02:07,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@765b2cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:07, skipping insertion in model container [2020-11-28 03:02:07,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:02:07" (1/1) ... [2020-11-28 03:02:07,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:02:07,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:02:08,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:02:08,308 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:02:08,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:02:08,517 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:02:08,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:08 WrapperNode [2020-11-28 03:02:08,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:02:08,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:02:08,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:02:08,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:02:08,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:08" (1/1) ... [2020-11-28 03:02:08,577 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:08" (1/1) ... [2020-11-28 03:02:08,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:02:08,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:02:08,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:02:08,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:02:08,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:08" (1/1) ... [2020-11-28 03:02:08,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:08" (1/1) ... [2020-11-28 03:02:08,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:08" (1/1) ... [2020-11-28 03:02:08,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:08" (1/1) ... [2020-11-28 03:02:08,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:08" (1/1) ... [2020-11-28 03:02:08,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:08" (1/1) ... [2020-11-28 03:02:08,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:08" (1/1) ... [2020-11-28 03:02:08,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:02:08,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:02:08,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:02:08,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:02:08,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ecbbe59f-df49-4a7b-aba5-5c0e7533b5f1/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 [2020-11-28 03:02:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:02:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:02:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:02:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:02:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure dec_a [2020-11-28 03:02:08,801 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_a [2020-11-28 03:02:08,801 INFO L130 BoogieDeclarations]: Found specification of procedure dec_b [2020-11-28 03:02:08,801 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_b [2020-11-28 03:02:08,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:02:08,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:02:08,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:02:08,804 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-28 03:02:09,798 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:02:09,798 INFO L298 CfgBuilder]: Removed 32 assume(true) statements. [2020-11-28 03:02:09,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:09 BoogieIcfgContainer [2020-11-28 03:02:09,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:02:09,802 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:02:09,802 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:02:09,809 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:02:09,810 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:02:09,811 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:02:07" (1/3) ... [2020-11-28 03:02:09,812 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5abbf607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:02:09, skipping insertion in model container [2020-11-28 03:02:09,812 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:02:09,813 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:08" (2/3) ... [2020-11-28 03:02:09,813 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5abbf607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:02:09, skipping insertion in model container [2020-11-28 03:02:09,813 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:02:09,814 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:09" (3/3) ... [2020-11-28 03:02:09,816 INFO L373 chiAutomizerObserver]: Analyzing ICFG gcd-2.i [2020-11-28 03:02:09,880 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:02:09,880 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:02:09,880 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:02:09,881 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:02:09,881 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:02:09,881 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:02:09,881 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:02:09,881 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:02:09,898 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) [2020-11-28 03:02:09,903 INFO L168 Benchmark]: Toolchain (without parser) took 2171.58 ms. Allocated memory is still 98.6 MB. Free memory was 78.4 MB in the beginning and 44.4 MB in the end (delta: 33.9 MB). Peak memory consumption was 33.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:02:09,904 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 81.8 MB. Free memory is still 58.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:02:09,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 786.85 ms. Allocated memory is still 98.6 MB. Free memory was 78.2 MB in the beginning and 47.7 MB in the end (delta: 30.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:02:09,906 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.58 ms. Allocated memory is still 98.6 MB. Free memory was 47.7 MB in the beginning and 45.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:02:09,907 INFO L168 Benchmark]: Boogie Preprocessor took 72.80 ms. Allocated memory is still 98.6 MB. Free memory was 45.2 MB in the beginning and 43.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:02:09,908 INFO L168 Benchmark]: RCFGBuilder took 1091.37 ms. Allocated memory is still 98.6 MB. Free memory was 43.6 MB in the beginning and 48.7 MB in the end (delta: -5.1 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:02:09,909 INFO L168 Benchmark]: BuchiAutomizer took 98.72 ms. Allocated memory is still 98.6 MB. Free memory was 48.7 MB in the beginning and 44.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:02:09,915 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 81.8 MB. Free memory is still 58.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 786.85 ms. Allocated memory is still 98.6 MB. Free memory was 78.2 MB in the beginning and 47.7 MB in the end (delta: 30.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 112.58 ms. Allocated memory is still 98.6 MB. Free memory was 47.7 MB in the beginning and 45.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.80 ms. Allocated memory is still 98.6 MB. Free memory was 45.2 MB in the beginning and 43.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1091.37 ms. Allocated memory is still 98.6 MB. Free memory was 43.6 MB in the beginning and 48.7 MB in the end (delta: -5.1 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 98.72 ms. Allocated memory is still 98.6 MB. Free memory was 48.7 MB in the beginning and 44.4 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...