./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R --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 033772d605bbfacd7bdbacf0756e3bc9cfb2f8cbffe91002f61ae4b41e344064 --- 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-38b53e6 [2022-11-25 17:41:28,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:41:28,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:41:28,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:41:28,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:41:28,322 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:41:28,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:41:28,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:41:28,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:41:28,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:41:28,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:41:28,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:41:28,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:41:28,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:41:28,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:41:28,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:41:28,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:41:28,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:41:28,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:41:28,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:41:28,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:41:28,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:41:28,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:41:28,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:41:28,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:41:28,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:41:28,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:41:28,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:41:28,393 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:41:28,394 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:41:28,394 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:41:28,395 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:41:28,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:41:28,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:41:28,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:41:28,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:41:28,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:41:28,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:41:28,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:41:28,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:41:28,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:41:28,406 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-25 17:41:28,454 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:41:28,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:41:28,455 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:41:28,455 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:41:28,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:41:28,457 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:41:28,457 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:41:28,457 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-25 17:41:28,458 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-25 17:41:28,458 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-25 17:41:28,459 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-25 17:41:28,460 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-25 17:41:28,460 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-25 17:41:28,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:41:28,461 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:41:28,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:41:28,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:41:28,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-25 17:41:28,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-25 17:41:28,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-25 17:41:28,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:41:28,463 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-25 17:41:28,463 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:41:28,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-25 17:41:28,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:41:28,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:41:28,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:41:28,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:41:28,466 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-25 17:41:28,466 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_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 033772d605bbfacd7bdbacf0756e3bc9cfb2f8cbffe91002f61ae4b41e344064 [2022-11-25 17:41:28,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:41:28,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:41:28,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:41:28,911 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:41:28,912 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:41:28,913 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c [2022-11-25 17:41:32,361 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:41:32,654 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:41:32,655 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c [2022-11-25 17:41:32,662 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/data/04084edf1/009ff43de4ee4fb5aed9a050d504090a/FLAG2c53af087 [2022-11-25 17:41:32,689 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/data/04084edf1/009ff43de4ee4fb5aed9a050d504090a [2022-11-25 17:41:32,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:41:32,694 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:41:32,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:41:32,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:41:32,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:41:32,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:41:32" (1/1) ... [2022-11-25 17:41:32,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1714e96c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:32, skipping insertion in model container [2022-11-25 17:41:32,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:41:32" (1/1) ... [2022-11-25 17:41:32,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:41:32,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:41:32,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:41:32,905 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:41:32,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:41:32,936 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:41:32,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:32 WrapperNode [2022-11-25 17:41:32,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:41:32,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:41:32,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:41:32,939 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:41:32,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:32" (1/1) ... [2022-11-25 17:41:32,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:32" (1/1) ... [2022-11-25 17:41:32,969 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2022-11-25 17:41:32,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:41:32,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:41:32,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:41:32,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:41:32,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:32" (1/1) ... [2022-11-25 17:41:32,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:32" (1/1) ... [2022-11-25 17:41:32,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:32" (1/1) ... [2022-11-25 17:41:32,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:32" (1/1) ... [2022-11-25 17:41:32,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:32" (1/1) ... [2022-11-25 17:41:32,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:32" (1/1) ... [2022-11-25 17:41:32,991 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:32" (1/1) ... [2022-11-25 17:41:32,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:32" (1/1) ... [2022-11-25 17:41:32,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:41:32,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:41:32,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:41:32,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:41:32,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:32" (1/1) ... [2022-11-25 17:41:33,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:41:33,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:41:33,034 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:41:33,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-25 17:41:33,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:41:33,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:41:33,177 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:41:33,180 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:41:33,243 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:41:33,251 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:41:33,251 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:41:33,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:41:33 BoogieIcfgContainer [2022-11-25 17:41:33,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:41:33,255 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-25 17:41:33,255 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-25 17:41:33,260 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-25 17:41:33,261 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 17:41:33,262 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 05:41:32" (1/3) ... [2022-11-25 17:41:33,263 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7dfd2230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 05:41:33, skipping insertion in model container [2022-11-25 17:41:33,263 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 17:41:33,263 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:32" (2/3) ... [2022-11-25 17:41:33,264 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7dfd2230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 05:41:33, skipping insertion in model container [2022-11-25 17:41:33,264 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 17:41:33,264 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:41:33" (3/3) ... [2022-11-25 17:41:33,266 INFO L332 chiAutomizerObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c [2022-11-25 17:41:33,340 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-25 17:41:33,340 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-25 17:41:33,341 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-25 17:41:33,341 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-25 17:41:33,341 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-25 17:41:33,341 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-25 17:41:33,341 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-25 17:41:33,342 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-25 17:41:33,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-25 17:41:33,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-25 17:41:33,371 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:41:33,371 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:41:33,378 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-25 17:41:33,378 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-25 17:41:33,378 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-25 17:41:33,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-25 17:41:33,380 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-25 17:41:33,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:41:33,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:41:33,380 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-25 17:41:33,381 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-25 17:41:33,391 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := 23; 3#L17-2true [2022-11-25 17:41:33,391 INFO L750 eck$LassoCheckResult]: Loop: 3#L17-2true assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~y~0#1;main_~y~0#1 := 1 + main_~y~0#1; 3#L17-2true [2022-11-25 17:41:33,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:41:33,407 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-25 17:41:33,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:41:33,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661572645] [2022-11-25 17:41:33,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:41:33,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:41:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:41:33,542 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:41:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:41:33,581 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:41:33,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:41:33,589 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2022-11-25 17:41:33,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:41:33,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895914429] [2022-11-25 17:41:33,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:41:33,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:41:33,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:41:33,620 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:41:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:41:33,634 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:41:33,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:41:33,636 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-25 17:41:33,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:41:33,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381300130] [2022-11-25 17:41:33,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:41:33,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:41:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:41:33,658 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:41:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:41:33,673 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:41:33,821 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:41:33,822 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:41:33,822 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:41:33,822 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:41:33,822 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 17:41:33,822 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:41:33,822 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:41:33,823 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:41:33,823 INFO L133 ssoRankerPreferences]: Filename of dumped script: HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c_Iteration1_Loop [2022-11-25 17:41:33,823 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:41:33,823 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:41:33,852 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:41:33,867 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:41:33,873 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:41:33,966 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:41:33,967 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 17:41:33,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:41:33,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:41:33,974 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:41:34,002 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:41:34,002 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:41:34,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-25 17:41:34,045 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 17:41:34,046 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 17:41:34,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-11-25 17:41:34,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:41:34,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:41:34,061 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:41:34,075 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:41:34,075 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:41:34,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-25 17:41:34,120 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 17:41:34,120 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 17:41:34,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:41:34,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:41:34,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:41:34,129 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:41:34,143 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:41:34,143 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:41:34,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-25 17:41:34,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:41:34,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:41:34,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:41:34,184 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:41:34,190 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 17:41:34,190 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:41:34,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-25 17:41:34,346 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2022-11-25 17:41:34,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:41:34,358 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:41:34,358 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:41:34,358 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:41:34,358 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:41:34,359 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 17:41:34,359 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:41:34,359 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:41:34,359 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:41:34,359 INFO L133 ssoRankerPreferences]: Filename of dumped script: HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c_Iteration1_Loop [2022-11-25 17:41:34,359 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:41:34,360 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:41:34,364 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:41:34,370 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:41:34,375 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:41:34,443 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:41:34,449 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 17:41:34,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:41:34,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:41:34,452 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:41:34,481 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 17:41:34,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-25 17:41:34,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:41:34,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:41:34,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:41:34,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:41:34,510 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-25 17:41:34,515 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-25 17:41:34,537 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:41:34,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:41:34,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:41:34,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:41:34,549 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:41:34,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-25 17:41:34,560 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 17:41:34,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:41:34,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:41:34,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:41:34,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:41:34,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-25 17:41:34,585 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-25 17:41:34,616 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:41:34,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:41:34,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:41:34,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:41:34,630 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:41:34,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-25 17:41:34,643 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 17:41:34,660 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:41:34,661 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:41:34,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:41:34,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:41:34,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:41:34,665 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:41:34,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:41:34,678 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:41:34,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:41:34,689 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-11-25 17:41:34,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:41:34,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:41:34,692 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:41:34,702 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 17:41:34,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-25 17:41:34,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:41:34,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:41:34,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:41:34,720 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-25 17:41:34,734 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2022-11-25 17:41:34,735 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2022-11-25 17:41:34,764 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:41:34,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-25 17:41:34,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:41:34,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:41:34,777 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:41:34,789 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 17:41:34,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-25 17:41:34,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:41:34,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:41:34,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:41:34,807 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-25 17:41:34,817 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2022-11-25 17:41:34,818 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2022-11-25 17:41:34,840 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:41:34,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-25 17:41:34,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:41:34,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:41:34,853 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:41:34,875 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-25 17:41:34,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-25 17:41:34,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:41:34,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:41:34,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:41:34,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:41:34,893 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-25 17:41:34,896 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-25 17:41:34,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:41:34,916 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 17:41:34,923 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 17:41:34,923 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 17:41:34,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:41:34,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:41:34,961 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:41:34,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-25 17:41:34,967 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 17:41:34,967 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 17:41:34,968 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 17:41:34,968 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~y~0#1 + 1 f1 = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2022-11-25 17:41:34,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-11-25 17:41:34,982 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 17:41:35,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:41:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:35,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:41:35,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:41:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:35,112 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:41:35,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:41:35,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:41:35,186 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-25 17:41:35,188 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-25 17:41:35,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-25 17:41:35,324 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) Result 16 states and 19 transitions. Complement of second has 5 states. [2022-11-25 17:41:35,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-25 17:41:35,334 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-11-25 17:41:35,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2022-11-25 17:41:35,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 1 letters. [2022-11-25 17:41:35,337 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:41:35,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2022-11-25 17:41:35,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:41:35,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2022-11-25 17:41:35,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:41:35,339 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2022-11-25 17:41:35,362 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-25 17:41:35,365 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2022-11-25 17:41:35,367 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-25 17:41:35,367 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-25 17:41:35,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-25 17:41:35,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:41:35,369 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:41:35,369 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:41:35,369 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:41:35,369 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-25 17:41:35,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-25 17:41:35,370 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-25 17:41:35,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-25 17:41:35,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 05:41:35 BoogieIcfgContainer [2022-11-25 17:41:35,378 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-25 17:41:35,379 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:41:35,379 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:41:35,380 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:41:35,380 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:41:33" (3/4) ... [2022-11-25 17:41:35,384 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:41:35,384 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:41:35,385 INFO L158 Benchmark]: Toolchain (without parser) took 2690.79ms. Allocated memory is still 155.2MB. Free memory was 125.3MB in the beginning and 122.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2022-11-25 17:41:35,386 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 119.5MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:41:35,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.38ms. Allocated memory is still 155.2MB. Free memory was 125.3MB in the beginning and 116.1MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 17:41:35,387 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.74ms. Allocated memory is still 155.2MB. Free memory was 116.1MB in the beginning and 114.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:41:35,388 INFO L158 Benchmark]: Boogie Preprocessor took 23.16ms. Allocated memory is still 155.2MB. Free memory was 114.8MB in the beginning and 114.0MB in the end (delta: 796.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:41:35,389 INFO L158 Benchmark]: RCFGBuilder took 259.21ms. Allocated memory is still 155.2MB. Free memory was 114.0MB in the beginning and 105.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 17:41:35,390 INFO L158 Benchmark]: BuchiAutomizer took 2123.74ms. Allocated memory is still 155.2MB. Free memory was 105.6MB in the beginning and 122.4MB in the end (delta: -16.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:41:35,390 INFO L158 Benchmark]: Witness Printer took 5.12ms. Allocated memory is still 155.2MB. Free memory was 122.4MB in the beginning and 122.2MB in the end (delta: 192.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:41:35,395 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 119.5MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 239.38ms. Allocated memory is still 155.2MB. Free memory was 125.3MB in the beginning and 116.1MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.74ms. Allocated memory is still 155.2MB. Free memory was 116.1MB in the beginning and 114.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.16ms. Allocated memory is still 155.2MB. Free memory was 114.8MB in the beginning and 114.0MB in the end (delta: 796.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 259.21ms. Allocated memory is still 155.2MB. Free memory was 114.0MB in the beginning and 105.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2123.74ms. Allocated memory is still 155.2MB. Free memory was 105.6MB in the beginning and 122.4MB in the end (delta: -16.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.12ms. Allocated memory is still 155.2MB. Free memory was 122.4MB in the beginning and 122.2MB in the end (delta: 192.9kB). 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 (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 2-nested ranking function (if -2 * y + 1 > 0 then 1 else 0), (if -2 * y + 1 > 0 then -2 * y + 1 else 2 * x + 1) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 5 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 74ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-25 17:41:35,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb008626-0213-47c0-9c36-35a859d54651/bin/uautomizer-ZsLfNo2U6R/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