./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/not-01.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbd48c-9001-4af0-8bd7-1d0bc38817e8/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbd48c-9001-4af0-8bd7-1d0bc38817e8/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbd48c-9001-4af0-8bd7-1d0bc38817e8/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbd48c-9001-4af0-8bd7-1d0bc38817e8/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/not-01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbd48c-9001-4af0-8bd7-1d0bc38817e8/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbd48c-9001-4af0-8bd7-1d0bc38817e8/bin/uautomizer-J5u9QxTXDZ --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 64bit --witnessprinter.graph.data.programhash 3dfbe8f5341b447680f0727714aef9849c6c8cbf32af0f88458cc80db5d02e27 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:16:48,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:16:48,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:16:48,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:16:48,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:16:48,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:16:48,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:16:48,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:16:48,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:16:48,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:16:48,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:16:48,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:16:48,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:16:48,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:16:48,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:16:48,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:16:48,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:16:48,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:16:48,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:16:48,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:16:48,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:16:48,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:16:48,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:16:48,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:16:48,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:16:48,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:16:48,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:16:48,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:16:48,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:16:48,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:16:48,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:16:48,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:16:48,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:16:48,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:16:48,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:16:48,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:16:48,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:16:48,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:16:48,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:16:48,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:16:48,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:16:48,508 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbd48c-9001-4af0-8bd7-1d0bc38817e8/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-10-17 10:16:48,541 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:16:48,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:16:48,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:16:48,542 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:16:48,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:16:48,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:16:48,544 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:16:48,544 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:16:48,545 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:16:48,545 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:16:48,545 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:16:48,545 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:16:48,546 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:16:48,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:16:48,546 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:16:48,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:16:48,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:16:48,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:16:48,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:16:48,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:16:48,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:16:48,548 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:16:48,549 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:16:48,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:16:48,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:16:48,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:16:48,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:16:48,550 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:16:48,552 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:16:48,552 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_ddbbd48c-9001-4af0-8bd7-1d0bc38817e8/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbd48c-9001-4af0-8bd7-1d0bc38817e8/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3dfbe8f5341b447680f0727714aef9849c6c8cbf32af0f88458cc80db5d02e27 [2022-10-17 10:16:48,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:16:49,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:16:49,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:16:49,023 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:16:49,024 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:16:49,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbd48c-9001-4af0-8bd7-1d0bc38817e8/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/termination-bwb/not-01.c [2022-10-17 10:16:49,123 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbd48c-9001-4af0-8bd7-1d0bc38817e8/bin/uautomizer-J5u9QxTXDZ/data/f9a691fab/6af1ddfc57c74627ab33b7bffe4b400d/FLAG020aedf94 [2022-10-17 10:16:49,660 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:16:49,661 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbd48c-9001-4af0-8bd7-1d0bc38817e8/sv-benchmarks/c/termination-bwb/not-01.c [2022-10-17 10:16:49,668 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbd48c-9001-4af0-8bd7-1d0bc38817e8/bin/uautomizer-J5u9QxTXDZ/data/f9a691fab/6af1ddfc57c74627ab33b7bffe4b400d/FLAG020aedf94 [2022-10-17 10:16:50,023 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbd48c-9001-4af0-8bd7-1d0bc38817e8/bin/uautomizer-J5u9QxTXDZ/data/f9a691fab/6af1ddfc57c74627ab33b7bffe4b400d [2022-10-17 10:16:50,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:16:50,030 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:16:50,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:16:50,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:16:50,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:16:50,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:16:50" (1/1) ... [2022-10-17 10:16:50,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c3cd63a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:50, skipping insertion in model container [2022-10-17 10:16:50,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:16:50" (1/1) ... [2022-10-17 10:16:50,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:16:50,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:16:50,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:16:50,360 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:16:50,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:16:50,395 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:16:50,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:50 WrapperNode [2022-10-17 10:16:50,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:16:50,398 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:16:50,398 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:16:50,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:16:50,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:50" (1/1) ... [2022-10-17 10:16:50,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:50" (1/1) ... [2022-10-17 10:16:50,437 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-10-17 10:16:50,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:16:50,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:16:50,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:16:50,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:16:50,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:50" (1/1) ... [2022-10-17 10:16:50,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:50" (1/1) ... [2022-10-17 10:16:50,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:50" (1/1) ... [2022-10-17 10:16:50,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:50" (1/1) ... [2022-10-17 10:16:50,458 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:50" (1/1) ... [2022-10-17 10:16:50,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:50" (1/1) ... [2022-10-17 10:16:50,465 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:50" (1/1) ... [2022-10-17 10:16:50,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:50" (1/1) ... [2022-10-17 10:16:50,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:16:50,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:16:50,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:16:50,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:16:50,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:50" (1/1) ... [2022-10-17 10:16:50,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:16:50,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbd48c-9001-4af0-8bd7-1d0bc38817e8/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:16:50,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbd48c-9001-4af0-8bd7-1d0bc38817e8/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:16:50,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbd48c-9001-4af0-8bd7-1d0bc38817e8/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:16:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:16:50,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:16:50,648 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:16:50,651 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:16:50,757 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:16:50,766 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:16:50,766 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:16:50,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:16:50 BoogieIcfgContainer [2022-10-17 10:16:50,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:16:50,771 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:16:50,771 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:16:50,777 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:16:50,778 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:16:50,778 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:16:50" (1/3) ... [2022-10-17 10:16:50,779 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c37bd25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:16:50, skipping insertion in model container [2022-10-17 10:16:50,780 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:16:50,780 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:50" (2/3) ... [2022-10-17 10:16:50,781 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c37bd25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:16:50, skipping insertion in model container [2022-10-17 10:16:50,781 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:16:50,781 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:16:50" (3/3) ... [2022-10-17 10:16:50,783 INFO L332 chiAutomizerObserver]: Analyzing ICFG not-01.c [2022-10-17 10:16:50,855 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:16:50,856 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:16:50,856 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:16:50,856 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:16:50,856 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:16:50,857 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:16:50,857 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:16:50,857 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:16:50,863 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:16:50,886 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:16:50,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:16:50,887 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:16:50,894 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:16:50,894 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:16:50,894 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:16:50,895 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:16:50,896 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:16:50,896 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:16:50,897 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:16:50,897 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:16:50,897 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:16:50,907 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 6#L18-1true [2022-10-17 10:16:50,908 INFO L750 eck$LassoCheckResult]: Loop: 6#L18-1true assume !!(main_~x~0#1 > 0); 3#L17true assume !(main_~a~0#1 >= 0);assume main_~a~0#1 >= 0; 4#L17-2true assume main_~a~0#1 > 0;main_~x~0#1 := main_~x~0#1 - main_~a~0#1; 6#L18-1true [2022-10-17 10:16:50,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:16:50,916 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-10-17 10:16:50,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:16:50,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90254551] [2022-10-17 10:16:50,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:16:50,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:16:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:16:51,025 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:16:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:16:51,049 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:16:51,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:16:51,054 INFO L85 PathProgramCache]: Analyzing trace with hash 40878, now seen corresponding path program 1 times [2022-10-17 10:16:51,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:16:51,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750700051] [2022-10-17 10:16:51,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:16:51,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:16:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:16:51,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:16:51,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:16:51,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750700051] [2022-10-17 10:16:51,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750700051] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:16:51,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:16:51,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:16:51,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805365042] [2022-10-17 10:16:51,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:16:51,124 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:16:51,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:16:51,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:16:51,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:16:51,170 INFO L87 Difference]: Start difference. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:16:51,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:16:51,177 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2022-10-17 10:16:51,179 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 6 transitions. [2022-10-17 10:16:51,180 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:16:51,184 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 0 states and 0 transitions. [2022-10-17 10:16:51,185 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-10-17 10:16:51,185 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-10-17 10:16:51,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-10-17 10:16:51,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:16:51,187 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:16:51,187 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:16:51,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:16:51,192 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:16:51,193 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 10:16:51,193 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-10-17 10:16:51,194 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:16:51,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-10-17 10:16:51,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.10 10:16:51 BoogieIcfgContainer [2022-10-17 10:16:51,203 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-10-17 10:16:51,204 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:16:51,205 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:16:51,205 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:16:51,206 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:16:50" (3/4) ... [2022-10-17 10:16:51,209 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 10:16:51,210 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:16:51,212 INFO L158 Benchmark]: Toolchain (without parser) took 1180.58ms. Allocated memory was 92.3MB in the beginning and 132.1MB in the end (delta: 39.8MB). Free memory was 56.4MB in the beginning and 81.1MB in the end (delta: -24.7MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2022-10-17 10:16:51,213 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 92.3MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:16:51,214 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.11ms. Allocated memory was 92.3MB in the beginning and 132.1MB in the end (delta: 39.8MB). Free memory was 56.2MB in the beginning and 109.7MB in the end (delta: -53.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 10:16:51,215 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.48ms. Allocated memory is still 132.1MB. Free memory was 109.7MB in the beginning and 108.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:16:51,216 INFO L158 Benchmark]: Boogie Preprocessor took 28.20ms. Allocated memory is still 132.1MB. Free memory was 108.5MB in the beginning and 107.5MB in the end (delta: 956.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:16:51,218 INFO L158 Benchmark]: RCFGBuilder took 300.12ms. Allocated memory is still 132.1MB. Free memory was 107.5MB in the beginning and 98.7MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 10:16:51,219 INFO L158 Benchmark]: BuchiAutomizer took 432.78ms. Allocated memory is still 132.1MB. Free memory was 98.7MB in the beginning and 81.5MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-10-17 10:16:51,220 INFO L158 Benchmark]: Witness Printer took 5.57ms. Allocated memory is still 132.1MB. Free memory was 81.5MB in the beginning and 81.1MB in the end (delta: 344.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:16:51,226 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 92.3MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.11ms. Allocated memory was 92.3MB in the beginning and 132.1MB in the end (delta: 39.8MB). Free memory was 56.2MB in the beginning and 109.7MB in the end (delta: -53.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.48ms. Allocated memory is still 132.1MB. Free memory was 109.7MB in the beginning and 108.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.20ms. Allocated memory is still 132.1MB. Free memory was 108.5MB in the beginning and 107.5MB in the end (delta: 956.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 300.12ms. Allocated memory is still 132.1MB. Free memory was 107.5MB in the beginning and 98.7MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 432.78ms. Allocated memory is still 132.1MB. Free memory was 98.7MB in the beginning and 81.5MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.57ms. Allocated memory is still 132.1MB. Free memory was 81.5MB in the beginning and 81.1MB in the end (delta: 344.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic). 1 modules have a trivial ranking function, the largest among these consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 6 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-10-17 10:16:51,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbd48c-9001-4af0-8bd7-1d0bc38817e8/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE