./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 e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b227fa-a483-47b3-b0b9-52ad31381696/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b227fa-a483-47b3-b0b9-52ad31381696/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b227fa-a483-47b3-b0b9-52ad31381696/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b227fa-a483-47b3-b0b9-52ad31381696/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/pthread-atomic/gcd-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b227fa-a483-47b3-b0b9-52ad31381696/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b227fa-a483-47b3-b0b9-52ad31381696/bin/uautomizer-j4sWxH34Be --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 ................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b227fa-a483-47b3-b0b9-52ad31381696/bin/uautomizer-j4sWxH34Be/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 0.2.1-dev-e943c26 [2021-10-21 19:08:54,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:08:54,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:08:54,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:08:54,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:08:54,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:08:54,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:08:54,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:08:54,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:08:54,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:08:54,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:08:54,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:08:54,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:08:54,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:08:54,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:08:54,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:08:54,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:08:54,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:08:54,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:08:54,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:08:54,498 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:08:54,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:08:54,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:08:54,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:08:54,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:08:54,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:08:54,508 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:08:54,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:08:54,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:08:54,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:08:54,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:08:54,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:08:54,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:08:54,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:08:54,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:08:54,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:08:54,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:08:54,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:08:54,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:08:54,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:08:54,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:08:54,523 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b227fa-a483-47b3-b0b9-52ad31381696/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:08:54,567 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:08:54,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:08:54,568 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:08:54,569 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:08:54,570 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:08:54,570 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:08:54,570 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:08:54,571 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:08:54,571 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:08:54,571 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:08:54,572 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:08:54,572 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:08:54,573 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:08:54,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:08:54,573 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:08:54,573 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:08:54,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:08:54,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:08:54,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:08:54,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:08:54,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:08:54,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:08:54,575 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:08:54,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:08:54,575 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:08:54,576 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:08:54,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:08:54,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:08:54,578 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:08:54,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:08:54,579 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:08:54,579 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:08:54,580 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:08:54,580 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_worker_vcloud-master_on_vcloud-master/run_dir_a5b227fa-a483-47b3-b0b9-52ad31381696/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b227fa-a483-47b3-b0b9-52ad31381696/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abac4834eb8b1123405a2c6108c3d30e84ad22df2224a055d262e226b4ba66e1 [2021-10-21 19:08:54,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:08:54,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:08:54,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:08:54,873 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:08:54,874 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:08:54,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b227fa-a483-47b3-b0b9-52ad31381696/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/pthread-atomic/gcd-2.i [2021-10-21 19:08:54,950 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b227fa-a483-47b3-b0b9-52ad31381696/bin/uautomizer-j4sWxH34Be/data/cc0e86cbd/ccd801c700ef4aa6b837072f1f6045a3/FLAGe6cf044a7 [2021-10-21 19:08:55,470 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:08:55,473 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b227fa-a483-47b3-b0b9-52ad31381696/sv-benchmarks/c/pthread-atomic/gcd-2.i [2021-10-21 19:08:55,499 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b227fa-a483-47b3-b0b9-52ad31381696/bin/uautomizer-j4sWxH34Be/data/cc0e86cbd/ccd801c700ef4aa6b837072f1f6045a3/FLAGe6cf044a7 [2021-10-21 19:08:55,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b227fa-a483-47b3-b0b9-52ad31381696/bin/uautomizer-j4sWxH34Be/data/cc0e86cbd/ccd801c700ef4aa6b837072f1f6045a3 [2021-10-21 19:08:55,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:08:55,909 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:08:55,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:08:55,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:08:55,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:08:55,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:08:55" (1/1) ... [2021-10-21 19:08:55,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a62386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:08:55, skipping insertion in model container [2021-10-21 19:08:55,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:08:55" (1/1) ... [2021-10-21 19:08:55,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:08:55,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:08:56,164 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b227fa-a483-47b3-b0b9-52ad31381696/sv-benchmarks/c/pthread-atomic/gcd-2.i[938,951] [2021-10-21 19:08:56,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:08:56,323 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:08:56,335 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b227fa-a483-47b3-b0b9-52ad31381696/sv-benchmarks/c/pthread-atomic/gcd-2.i[938,951] [2021-10-21 19:08:56,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:08:56,405 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:08:56,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:08:56 WrapperNode [2021-10-21 19:08:56,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:08:56,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:08:56,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:08:56,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:08:56,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:08:56" (1/1) ... [2021-10-21 19:08:56,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:08:56" (1/1) ... [2021-10-21 19:08:56,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:08:56,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:08:56,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:08:56,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:08:56,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:08:56" (1/1) ... [2021-10-21 19:08:56,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:08:56" (1/1) ... [2021-10-21 19:08:56,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:08:56" (1/1) ... [2021-10-21 19:08:56,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:08:56" (1/1) ... [2021-10-21 19:08:56,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:08:56" (1/1) ... [2021-10-21 19:08:56,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:08:56" (1/1) ... [2021-10-21 19:08:56,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:08:56" (1/1) ... [2021-10-21 19:08:56,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:08:56,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:08:56,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:08:56,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:08:56,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:08:56" (1/1) ... [2021-10-21 19:08:56,500 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:08:56,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b227fa-a483-47b3-b0b9-52ad31381696/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:08:56,523 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b227fa-a483-47b3-b0b9-52ad31381696/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:08:56,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b227fa-a483-47b3-b0b9-52ad31381696/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:08:56,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:08:56,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:08:56,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:08:56,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:08:56,573 INFO L130 BoogieDeclarations]: Found specification of procedure dec_a [2021-10-21 19:08:56,573 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_a [2021-10-21 19:08:56,574 INFO L130 BoogieDeclarations]: Found specification of procedure dec_b [2021-10-21 19:08:56,574 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_b [2021-10-21 19:08:56,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:08:56,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:08:56,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:08:56,576 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-21 19:08:57,008 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:08:57,009 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-21 19:08:57,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:08:57 BoogieIcfgContainer [2021-10-21 19:08:57,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:08:57,012 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:08:57,012 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:08:57,016 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:08:57,016 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:08:57,017 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:08:55" (1/3) ... [2021-10-21 19:08:57,018 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5aaafefc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:08:57, skipping insertion in model container [2021-10-21 19:08:57,018 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:08:57,018 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:08:56" (2/3) ... [2021-10-21 19:08:57,018 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5aaafefc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:08:57, skipping insertion in model container [2021-10-21 19:08:57,019 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:08:57,019 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:08:57" (3/3) ... [2021-10-21 19:08:57,020 INFO L389 chiAutomizerObserver]: Analyzing ICFG gcd-2.i [2021-10-21 19:08:57,062 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:08:57,062 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:08:57,062 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:08:57,062 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:08:57,062 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:08:57,062 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:08:57,062 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:08:57,063 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:08:57,075 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:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) 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) [2021-10-21 19:08:57,084 INFO L168 Benchmark]: Toolchain (without parser) took 1168.41 ms. Allocated memory was 92.3 MB in the beginning and 138.4 MB in the end (delta: 46.1 MB). Free memory was 55.4 MB in the beginning and 80.1 MB in the end (delta: -24.7 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:08:57,086 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 92.3 MB. Free memory was 62.9 MB in the beginning and 62.9 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:08:57,087 INFO L168 Benchmark]: CACSL2BoogieTranslator took 495.78 ms. Allocated memory was 92.3 MB in the beginning and 138.4 MB in the end (delta: 46.1 MB). Free memory was 55.2 MB in the beginning and 104.7 MB in the end (delta: -49.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:08:57,089 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.17 ms. Allocated memory is still 138.4 MB. Free memory was 104.0 MB in the beginning and 101.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:08:57,089 INFO L168 Benchmark]: Boogie Preprocessor took 31.63 ms. Allocated memory is still 138.4 MB. Free memory was 101.9 MB in the beginning and 100.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:08:57,091 INFO L168 Benchmark]: RCFGBuilder took 520.17 ms. Allocated memory is still 138.4 MB. Free memory was 100.5 MB in the beginning and 84.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:08:57,092 INFO L168 Benchmark]: BuchiAutomizer took 64.65 ms. Allocated memory is still 138.4 MB. Free memory was 83.7 MB in the beginning and 80.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:08:57,103 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 92.3 MB. Free memory was 62.9 MB in the beginning and 62.9 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 495.78 ms. Allocated memory was 92.3 MB in the beginning and 138.4 MB in the end (delta: 46.1 MB). Free memory was 55.2 MB in the beginning and 104.7 MB in the end (delta: -49.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.17 ms. Allocated memory is still 138.4 MB. Free memory was 104.0 MB in the beginning and 101.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.63 ms. Allocated memory is still 138.4 MB. Free memory was 101.9 MB in the beginning and 100.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 520.17 ms. Allocated memory is still 138.4 MB. Free memory was 100.5 MB in the beginning and 84.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 64.65 ms. Allocated memory is still 138.4 MB. Free memory was 83.7 MB in the beginning and 80.1 MB in the end (delta: 3.6 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:237) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-21 19:08:57,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b227fa-a483-47b3-b0b9-52ad31381696/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...